CN109094540B - Overspeed protection method, system, equipment and storage medium for train - Google Patents
Overspeed protection method, system, equipment and storage medium for train Download PDFInfo
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- CN109094540B CN109094540B CN201811167603.5A CN201811167603A CN109094540B CN 109094540 B CN109094540 B CN 109094540B CN 201811167603 A CN201811167603 A CN 201811167603A CN 109094540 B CN109094540 B CN 109094540B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/126—Brakes for railway vehicles coming into operation in case of exceeding a predetermined speed
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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
- B61L27/10—Operations, e.g. scheduling or time tables
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- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
The invention discloses an overspeed protection method of a train, which comprises the following steps: acquiring load information of a train; determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between the preset load information and the train speed limit value; and when the actual speed of the train is greater than or equal to the train speed limit value, braking the train. The method provided by the invention can effectively protect the train from overspeed and can fully utilize line resources on the premise of ensuring safety. The invention also discloses an overspeed protection system, equipment and a storage medium of the train, and the overspeed protection system, the equipment and the storage medium have corresponding technical effects.
Description
Technical Field
The invention relates to the technical field of train control, in particular to an overspeed protection method, system, equipment and storage medium for a train.
Background
In the running process of the train, an overspeed protection mechanism is usually arranged, namely when the running speed of the train is detected to exceed a speed limit value, the train is braked, and the danger caused by further acceleration of the train speed is prevented.
Generally speaking, a speed limit value is uniformly set for the train for the same route. In the actual running process of the train, different running states exist under different scenes, so that when the train is braked after reaching the speed limit value, different brake time is consumed under different scenes, and the existing setting scheme of the single speed limit value can not meet the requirement more and more along with the improvement of the running standard of the train. For example, when the train load is large in actual operation, the required braking time is longer compared with light load, when the train is overspeed, the train may not be braked in time, and if the speed limit value is set to be low to avoid the train being braked in time when the train is heavy, the train speed is insufficient when the train is light load, and the line resource cannot be reasonably utilized.
In summary, how to more effectively perform overspeed protection on a train so as to fully utilize line resources on the premise of ensuring safety is a technical problem that needs to be solved urgently by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide an overspeed protection method of a train, which is used for effectively carrying out overspeed protection on the train and fully utilizing line resources on the premise of ensuring safety.
In order to solve the technical problems, the invention provides the following technical scheme:
an overspeed protection method of a train, comprising:
acquiring load information of a train;
determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between preset load information and the train speed limit value;
and when the actual speed of the train is greater than or equal to the train speed limit value, braking the train.
Preferably, after the train speed limit corresponding to the load information is determined, the method further includes:
determining a corresponding early warning value according to the train speed limit value, wherein the early warning value is lower than the train speed limit value;
and when the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value, outputting prompt information.
Preferably, after the outputting the prompt message, the method further includes:
and braking the train when judging that the confirmation signal sent by the user is not received within the first time length.
Preferably, the outputting the prompt message includes:
and outputting prompt information comprising light signals and sound signals.
Preferably, the load information includes load weight information of the train:
the step of determining the train speed limit value corresponding to the acquired load information according to the load information and the corresponding rule between the preset load information and the train speed limit value comprises the following steps:
determining a weight interval in which the load weight information is located according to a preset corresponding rule between the load information and the train speed limit value;
and determining the train speed limit value corresponding to the weight interval according to the weight interval and the preset corresponding rule, wherein each weight interval stored in the preset corresponding rule is a continuous interval, and the larger the lower limit value of the weight interval is, the smaller the corresponding train speed limit value is.
Preferably, the load information includes load weight information, load type information, and train length information of the train.
Preferably, the braking the train includes:
and carrying out emergency braking on the train.
An overspeed protection system of a train, comprising:
the load information acquisition module is used for acquiring the load information of the train;
the train speed limit value determining module is used for determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between preset load information and the train speed limit value;
and the overspeed braking module is used for braking the train when the actual speed of the train is greater than or equal to the train speed limit value.
An overspeed protection apparatus of a train, comprising:
a memory for storing an overspeed protection program;
a processor for executing the overspeed protection program to implement the steps of the overspeed protection method of a train according to any one of the above.
A computer readable storage medium having stored thereon a computer program for implementing the steps of the method for overspeed protection of a train as defined in any of the preceding claims when executed by a processor
The technical scheme provided by the embodiment of the invention comprises the following steps: acquiring load information of a train; determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between the preset load information and the train speed limit value; and when the actual speed of the train is greater than or equal to the train speed limit value, braking the train.
According to the scheme, a single speed limit value is not adopted, but a corresponding train speed limit value exists under the condition of different load information, and the corresponding relation needs to accord with the corresponding rule between the preset load information and the train speed limit value, so that a reasonable train speed limit value can be determined after the load information is obtained. Therefore, the scheme of the application can effectively carry out overspeed protection on the train and can fully utilize line resources on the premise of ensuring safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment of an overspeed protection method for a train according to the present invention;
FIG. 2 is a schematic diagram of an overspeed protection system of a train according to the present invention;
fig. 3 is a schematic structural diagram of an overspeed protection apparatus of a train in accordance with the present invention.
Detailed Description
The core of the invention is to provide an overspeed protection method for a train, which can effectively carry out overspeed protection on the train and can fully utilize line resources on the premise of ensuring safety.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Referring to fig. 1, fig. 1 is a flowchart illustrating an implementation of an overspeed protection method for a train according to the present invention, the method including the following steps:
step S101: and acquiring the load information of the train.
The load information may indicate a load condition of the train, and the load information of the train may be acquired by a control system of the train, and the load information may be generally input by a driver, or may be acquired by using a related detection device and automatically sent to a power supply system of the train.
Step S102: and determining the train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between the preset load information and the train speed limit value.
The obtained load information is different, and the corresponding train speed limit value can be determined according to the preset corresponding rule. For example, in a specific embodiment, the load information only includes load weight information of the train, that is, in this embodiment, the corresponding train speed limit value may be determined according to the difference of the load weight. Under the condition that other factors are the same, the larger the train load weight is, the larger the braking force required by the train is, and the longer the time consumed by train braking is, so that when the load weight is larger, a smaller train speed limit value needs to be set for the train to prevent the train from being incapable of completing braking in time to cause danger when the train load weight is larger.
Of course, the corresponding relationship between the load weight information and the train speed limit value can be a linear corresponding relationship or a sectional corresponding relationship, and the sectional corresponding relationship is favorable for calculation and is also favorable for a driver to be capable of recording each train speed limit value. Specifically, a weight section in which the obtained load weight information is located may be determined according to a preset rule of correspondence between the load information and the train speed limit value, for example, when the load weight information is 0 to 20 tons, the located weight section is determined to be a 1 st section, when the load weight information is 20 tons to 50 tons, the located weight section is determined to be a 2 nd section, and after the weight section is determined, the train speed limit value corresponding to the weight section is determined according to the rule of correspondence. Each weight interval stored in the preset corresponding rule is a continuous interval, and when the lower limit value of the weight interval is larger, the corresponding train speed limit value is smaller, that is, the train speed limit value corresponding to the 1 st interval is larger than the train speed limit value corresponding to the 2 nd interval. The specific weight interval setting and the corresponding train speed limit setting can be set and adjusted according to actual needs, for example, the adjustment can be performed according to actual road sections, and the implementation of the invention is not influenced.
In the embodiment where the load information includes only the load weight information of the train, the calculation is facilitated since there is less content carried in the load information, and the load weight is also a main factor that affects the braking. Of course, in other embodiments, the load information may include more contents, so that the load condition of the train can be determined more comprehensively, and a more accurate and appropriate train speed limit value can be made.
For example, in one embodiment, the load information may include load weight information, load type information, and train length information for the train. The load types can be goods, passengers and the load types of the goods can be generally subdivided into solid goods, liquid goods, gas goods and the like, different load types have different requirements on braking, and different train speed limit values can be set for the different load types. The length of the train also affects the braking of the train, and generally, under the same other conditions, the longer the length of the train, the shorter the braking time, so a larger train speed limit value can be set for the train to fully utilize the resources of the train line. For example, in one specific embodiment, when the load weight is 0 to 20 tons, the load type is passengers, and the train length is 160 to 200 meters, the train speed limit value is determined to be a according to the rule corresponding to the load information and the train speed limit value, and when the load weight is 0 to 20 tons, the load type is solid goods, such as coal, and the train length is 160 to 200 meters, the train speed limit value is determined to be B according to the rule corresponding to the load information and the train speed limit value.
Step S103: and when the actual speed of the train is greater than or equal to the train speed limit value, braking the train.
After the speed limit value of the train is determined, when the fact that the actual speed of the train is larger than or equal to the speed limit value of the train is detected, the train is braked. In a specific embodiment, considering that the train does not normally overspeed, if the actual speed of the train is greater than or equal to the train speed limit value, a dangerous condition is likely to occur, or the dangerous condition is very likely to occur if the braking is not timely, therefore, in the embodiment, when the actual speed of the train is greater than or equal to the train speed limit value, the train is immediately subjected to emergency braking. The reliability of the emergency braking loop is usually higher than that of the common braking loop, which is beneficial to timely and effectively completing the braking process of the train.
The overspeed protection method for the train provided by the embodiment of the invention comprises the following steps: acquiring load information of a train; determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between the preset load information and the train speed limit value; and when the actual speed of the train is greater than or equal to the train speed limit value, braking the train.
According to the scheme, a single speed limit value is not adopted, but a corresponding train speed limit value exists under the condition of different load information, and the corresponding relation needs to accord with the corresponding rule between the preset load information and the train speed limit value, so that a reasonable train speed limit value can be determined after the load information is obtained. Therefore, the scheme of the application can effectively carry out overspeed protection on the train and can fully utilize line resources on the premise of ensuring safety.
In an embodiment of the present invention, after step S102, the following two steps may be further included:
the method comprises the following steps: and determining a corresponding early warning value according to the train speed limit value, wherein the early warning value is lower than the train speed limit value.
Step two: and when the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value, outputting prompt information.
The applicant considers that when the actual speed of the train is greater than or equal to the train speed limit value, braking is carried out, and in some cases, dangerous situations can still not be avoided, and if the problem can be solved from the source, the actual speed of the train is avoided being greater than or equal to the train speed limit value, and the safety of the train can be greatly improved. Specifically, in the embodiment, the corresponding early warning value is obtained according to the determined train speed limit value, the early warning value is lower than the train speed limit value and is usually a numerical value close to the train speed limit value, and the specific setting can be adjusted according to actual needs. The setting of the early warning value can play a role in prompting a driver. When the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value, the prompt information can be output, so that the driver is prompted that the actual speed of the train is close to the train speed limit value under the conditions of fatigue driving, inattention and the like of the driver, and the driver can determine subsequent operation, such as speed reduction after obtaining the prompt information.
Considering that when the actual speed of the train approaches the train speed limit, in some cases, the attention of the driver is focused, i.e. the driver knows that the speed of the train is fast at the moment and actively controls the train to be below the current speed by the driver, while in some cases, the actual speed of the train is fast and not actively controlled by the driver due to fatigue driving of the driver and the like, and after the prompt information is output, the driver may not notice, for example, the driver sleeps and does not decelerate the train. In view of the above, in one embodiment of the present application, after the prompt message is output, it may be determined whether a confirmation signal sent by the user, i.e., the driver, is received within the first time period. If the confirmation signal is received, the driver is indicated to actively control the train to run at a speed close to the speed limit value, and the braking operation is not needed at the moment. Correspondingly, if the confirmation signal is not received within the first time period, the speed of the train is higher, the train is not under the active control of the driver, and the output prompt information cannot attract the attention of the driver, so that the train can be braked by adopting conventional braking or emergency braking to avoid further increase of the speed of the train, and the setting can be carried out according to actual requirements.
The implementation mode is beneficial to effectively guaranteeing the safety of the train when the output prompt information fails to attract the attention of a driver. Of course, in order to make the output prompt information to effectively attract the attention of the driver, the prompt information including a light signal as well as a sound signal may be output. For example, the output of the warning message is performed by an indicator lamp and a buzzer.
Corresponding to the above method embodiment, the embodiment of the present invention further provides an overspeed protection system of a train, and the overspeed protection system of a train described below and the overspeed protection method of a train described above may be referred to correspondingly.
Referring to fig. 2, a schematic structural diagram of an overspeed protection system of a train according to the present invention may include the following modules:
a load information obtaining module 201, configured to obtain load information of a train;
the train speed limit value determining module 202 is used for determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between the preset load information and the train speed limit value;
and the overspeed braking module 203 is used for braking the train when the actual speed of the train is greater than or equal to the train speed limit value.
In one embodiment of the present invention, the method further comprises:
the early warning value determining module is used for determining a corresponding early warning value according to the train speed limit value after the train speed limit value determining module 202 determines the train speed limit value corresponding to the load information, wherein the early warning value is lower than the train speed limit value;
and the prompt information output module is used for outputting prompt information when the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value.
In one embodiment of the present invention, the method further comprises:
and the early warning braking module is used for braking the train when judging that the confirmation signal sent by the user is not received within the first time after the prompt information output module outputs the prompt information.
In a specific embodiment of the present invention, the prompt information output module is specifically configured to:
and when the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value, outputting prompt information comprising an optical signal and a sound signal.
In one embodiment of the present invention, the load information includes load weight information of the train:
the train speed limit value determining module 202 is specifically configured to:
determining a weight interval in which load weight information is located according to a preset corresponding rule between the load information and the train speed limit value;
and determining the train speed limit value corresponding to the weight interval according to the weight interval and a preset corresponding rule, wherein each weight interval stored in the preset corresponding rule is a continuous interval, and the larger the lower limit value of the weight interval is, the smaller the corresponding train speed limit value is.
In one embodiment of the present invention, the load information includes load weight information of the train, load type information, and train length information.
In an embodiment of the present invention, the overspeed braking module 203 is specifically configured to perform emergency braking on the train when the actual speed of the train is greater than or equal to the train speed limit.
Corresponding to the above method embodiments, the embodiment of the present invention further provides an overspeed protection device for a train and a computer-readable storage medium, which can be referred to in correspondence with the above-described overspeed protection method and system for a train.
Referring to fig. 3, a schematic structural diagram of an overspeed protection apparatus of a train according to the present invention includes:
a memory 301 for storing an overspeed protection program;
a processor 302 for executing an overspeed protection program to implement the steps of the overspeed protection method of a train in any of the above embodiments.
The computer readable storage medium has stored thereon a computer program which, when being executed by a processor, implements the steps of the method for overspeed protection of a train according to any of the above embodiments. A computer-readable storage medium as referred to herein may include Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. An overspeed protection method of a train, comprising:
acquiring load information of a train;
determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between preset load information and the train speed limit value;
when the actual speed of the train is greater than or equal to the train speed limit value, braking the train;
the load information comprises load weight information, load type information and train length information of the train;
the braking the train comprises:
and carrying out emergency braking on the train.
2. The method for protecting the overspeed of a train according to claim 1, further comprising, after said determining a train speed limit value corresponding to said load information:
determining a corresponding early warning value according to the train speed limit value, wherein the early warning value is lower than the train speed limit value;
and when the actual speed of the train is greater than or equal to the early warning value and less than the train speed limit value, outputting prompt information.
3. The method for protecting the train against overspeed according to claim 2, further comprising, after said outputting the prompt message:
and braking the train when judging that the confirmation signal sent by the user is not received within the first time length.
4. The method for protecting a train against overspeed according to claim 2, wherein said outputting the prompt message includes:
and outputting prompt information comprising light signals and sound signals.
5. The overspeed protection method of a train according to claim 1, wherein said load information includes load weight information of said train:
the step of determining the train speed limit value corresponding to the acquired load information according to the load information and the corresponding rule between the preset load information and the train speed limit value comprises the following steps:
determining a weight interval in which the load weight information is located according to a preset corresponding rule between the load information and the train speed limit value;
and determining the train speed limit value corresponding to the weight interval according to the weight interval and the preset corresponding rule, wherein each weight interval stored in the preset corresponding rule is a continuous interval, and the larger the lower limit value of the weight interval is, the smaller the corresponding train speed limit value is.
6. An overspeed protection system of a train, comprising:
the load information acquisition module is used for acquiring the load information of the train;
the train speed limit value determining module is used for determining a train speed limit value corresponding to the acquired load information according to the load information and a corresponding rule between preset load information and the train speed limit value;
the overspeed braking module is used for braking the train when the actual speed of the train is greater than or equal to the train speed limit value;
the load information comprises load weight information, load type information and train length information of the train;
the overspeed braking module brakes the train, comprising:
the overspeed braking module performs emergency braking on the train.
7. An overspeed protection apparatus for a train, comprising:
a memory for storing an overspeed protection program;
a processor for executing the overspeed protection procedure to implement the steps of the overspeed protection method of a train according to any of claims 1 to 5.
8. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method for overspeed protection of a train according to any one of claims 1 to 5.
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| CN201811167603.5A CN109094540B (en) | 2018-10-08 | 2018-10-08 | Overspeed protection method, system, equipment and storage medium for train |
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| CN112388640A (en) * | 2020-11-27 | 2021-02-23 | 深圳优地科技有限公司 | Speed control method and device based on load, robot and storage medium |
| CN115123350B (en) * | 2022-09-01 | 2022-12-09 | 卡斯柯信号(北京)有限公司 | Method and device for testing vehicle tail holding |
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| CN103747991A (en) * | 2011-08-12 | 2014-04-23 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Emergency brake device for a rail vehicle, brake system for a rail vehicle, and rail vehicle |
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