CN112744263B - Automatic adjustment method for departure level and vehicle-mounted controller - Google Patents
Automatic adjustment method for departure level and vehicle-mounted controller Download PDFInfo
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- CN112744263B CN112744263B CN201911051154.2A CN201911051154A CN112744263B CN 112744263 B CN112744263 B CN 112744263B CN 201911051154 A CN201911051154 A CN 201911051154A CN 112744263 B CN112744263 B CN 112744263B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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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
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Abstract
The invention provides an automatic departure level adjusting method and a vehicle-mounted controller, wherein the automatic departure level adjusting method comprises the following steps of: acquiring an alarm speed; determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed; and automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level. The automatic departure level adjusting method provided by the invention can automatically adjust the departure level according to the alarm speed, thereby preventing the departure level from being larger, triggering the alarm speed, ensuring stable departure and improving the comfort level of passengers.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to an automatic dispatching level adjusting method and a vehicle-mounted controller.
Background
In the vehicle of the straddle type rail transit system in the related art, the automatic departure level when the train automatically operates generally uses the fixed departure level, the fixed departure level is simple to process, but the results of the same departure level performance may be different for different vehicle types or different vehicles of the same vehicle type. At a station with a lower speed limit, if the departure grade position is larger, the alarm speed or even the full service brake speed can be easily triggered, so that the passenger experience and comfort are poor immediately after the speed is just increased because the traction is cut off or the full service brake speed is applied immediately after the speed is reduced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an automatic departure level adjusting method and a vehicle-mounted controller. The automatic departure level adjusting method can automatically adjust the departure level according to the alarm speed, so that the departure level is prevented from being large, the alarm speed is triggered, the departure is stable, and the comfort level of passengers can be improved.
To achieve the above object, an embodiment according to a first aspect of the present invention provides an automatic departure level adjustment method, including: acquiring an alarm speed; determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed; and automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level.
Therefore, according to the automatic departure level adjusting method provided by the embodiment of the first aspect of the invention, the departure level can be adjusted according to the alarm speed, so that the situation that the departure level is large and the alarm speed is triggered can be prevented.
In some examples of the invention, the obtaining the alarm speed includes: calculating the emergency braking trigger speed; and calculating and acquiring the alarm speed according to the emergency braking trigger speed. Therefore, the alarm speed can be acquired, and the departure level can be further limited according to the alarm speed.
In some examples of the invention, the determining an initial departure step, a gear update frequency and a maximum departure step according to the alarm speed comprises: when the alarm speed is higher than a preset speed, the determined gear of the initial departure gear is higher than a preset gear, and the gear updating frequency is lower than a preset frequency; and when the alarm speed is lower than the preset speed, the determined gear of the initial departure gear is lower than the preset gear, and the gear updating frequency is higher than the preset frequency.
In some examples of the present invention, the automatically adjusting the departure step according to the initial departure step, the gear update frequency, and the maximum departure step includes: and according to the gear updating frequency, when the gear is updated every time, increasing a first gear on the basis of the gear of the previous departure gear until the gear corresponding to the maximum departure gear is increased. Therefore, the departure level is stably raised until reaching the maximum departure level, and the passenger can feel comfortable by taking a bus.
An embodiment according to a second aspect of the invention proposes an on-board controller comprising: the acquisition module is used for acquiring the alarm speed; the determining module is used for determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed; and the output module is used for automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level.
Therefore, the vehicle-mounted controller has the advantages that the vehicle-mounted controller has the matching effect of the modules, the departure level is adjusted, and the departure level can be automatically adjusted according to the alarm speed, so that the departure level is prevented from being large, the alarm speed is triggered, the departure is stable, and the comfort level of passengers can be improved.
In some examples of the invention, a calculation module is further included for calculating an emergency braking speed and an alert speed.
In some examples of the present invention, the adjusting module is further configured to increase a first gear on the basis of a gear of a previous departure gear at each gear update according to the gear update frequency until the gear corresponding to the maximum departure gear is increased.
In some examples of the invention, the system further comprises an output module for outputting the departure level.
An embodiment according to a third aspect of the present invention provides a controller, including a memory, a processor, a receiver, a transmitter, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the automatic departure level adjustment method according to the embodiment of the first aspect of the present invention.
According to a fourth aspect of the present invention, a computer-readable storage medium is provided, where a computer program is stored, where the computer program is executed by a processor to implement the method for automatically adjusting departure level according to the first aspect of the present invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of an automatic adjustment method for departure level according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for automatically adjusting an departure level according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of an onboard controller provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of an onboard controller provided in accordance with yet another embodiment of the present invention;
fig. 5 is a schematic diagram of an onboard controller according to another embodiment of the present invention.
Reference numerals are as follows:
an onboard controller 100;
an acquisition module 10; a determination module 20; an adjustment module 30; a calculation module 40; and an output module 50.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes in detail an automatic departure level adjustment method and an on-board controller according to an embodiment of the present invention with reference to fig. 1.
Fig. 1 illustrates an automatic adjustment method for departure level according to an embodiment of the present invention.
In some embodiments, as shown in fig. 1, the method for automatically adjusting departure level comprises the following steps:
s101, acquiring an alarm speed;
s102, determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed;
and S103, automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level.
The departure level can be understood as the departure acceleration of the rail vehicle. The departure level can be divided into a plurality of gears according to different sizes, generally divided into-16 gears to 16 gears, and corresponding to the acceleration of-1 m/s2 (meter per square second) to the acceleration of 1m/s2 (meter per square second). When the gear is a negative number, the train runs in a deceleration mode; when the gear is a positive number, the acceleration of the train is represented.
In some embodiments, the departure steps of the rail vehicle are fixed, and the fixed departure steps, although simpler to process, are not necessarily the most suitable departure steps for different vehicle types. And because the speed limit of different platform sections is different, some are higher, and some are lower. At a station with a lower speed limit, if the departure grade position is larger, the alarm speed or even the full service brake speed can be easily triggered, so that the passenger experience and comfort are poor immediately after the speed is just increased because the traction is cut off or the full service brake speed is applied immediately after the speed is reduced.
Therefore, the departure grade of the railway vehicle can be adjusted according to the alarm speed of the platform by the automatic departure grade adjusting method, so that the alarm speed of the platform is prevented from being triggered. And further, the gear updating frequency is set, so that the gear of the departure level is stably increased until the maximum departure level is reached, the departure of the railway vehicle is stable, and the riding comfort of passengers is improved.
In some embodiments, as shown in fig. 2, step S101 further includes the following steps:
s201, calculating the emergency braking trigger speed;
and S202, calculating and acquiring an alarm speed according to the emergency braking trigger speed.
In some embodiments, the emergency braking trigger speeds of different stations are different, and when the emergency braking trigger speed is reached, emergency braking of the rail vehicle is caused, so that not only is the riding comfort of passengers affected, but also potential safety hazards may be caused.
Before determining the departure level, an emergency braking trigger speed is obtained, which can be calculated by a series of algorithms. Algorithms for calculating the emergency braking trigger speed are various and are not described in detail herein. After the emergency braking trigger speed is obtained, the alarm speed can be calculated according to the emergency braking trigger speed. The process of obtaining the alarm speed is simpler, namely, a reasonable speed lower than the emergency braking trigger speed is taken as the alarm speed. It should be noted that the method for acquiring the alarm speed is not limited to this method, and may also be obtained by other methods. Generally, the alarm speed is lower than the emergency brake trigger speed, so that when the rail vehicle reaches the alarm speed but does not reach the emergency brake trigger speed, alarm information is sent out to the rail vehicle, and the rail vehicle is decelerated.
In some embodiments, as shown in fig. 1, after acquiring the warning speed and completing step S101, step S102 needs to be executed to determine an initial departure step, a gear updating frequency and a maximum departure step according to the warning speed.
In some embodiments, step S102 further comprises:
when the alarm speed is higher than the preset speed, the gear of the determined initial departure gear is higher than the preset gear, and the gear updating frequency is lower than the preset frequency;
and when the alarm speed is lower than the preset speed, the gear of the determined initial departure gear is lower than the preset gear, and the gear updating frequency is higher than the preset frequency.
In some embodiments, after the warning speed is obtained, the departure grade of the rail vehicle needs to be determined according to the warning speed. When the alarm speed is high or low, the initial departure level and the gear updating frequency are set differently, so that the alarm speed can be divided. The alarm speed is divided into two parts by a preset speed, the alarm speed higher than the preset speed is a higher part, and the alarm speed lower than the preset speed is a lower part. When the alarm speed is higher than the preset speed, the set initial departure gear can be set to be higher than a preset gear, and the gear updating frequency can be set to be lower than the preset frequency; when the warning speed is lower than the preset speed, the gear updating frequency is set to be higher than the preset frequency. The gear update frequency may be used to update the departure level of the rail vehicle according to the gear update frequency.
It should be noted that the preset speed, the preset gear and the preset frequency are all unfixed numerical values, and a proper numerical value can be manually determined or screened out by combining with the operation data. It should be further understood that if the preset frequency is 5, one departure level is updated for 5 cycles; if the frequency is higher than the preset frequency, for example, the preset frequency is 6, the transmission gear stage is updated in 6 periods, and therefore, the gear updating frequency is slowed when the frequency is higher than the preset frequency; similarly, a frequency lower than the preset frequency represents that the gear updating frequency is faster.
In some embodiments, if the preset speed is set to 25km/h (kilometers per hour), when the alarm speed exceeds 25km/h (kilometers per hour), the initial departure gear level may be set to 3 gears, and the gear frequency may be set to 4 (4 gears are updated periodically); when the alarm speed is lower than 25km/h (kilometers per hour), the initial departure gear level can be set to 2 gears or even smaller, but above 0 gears, the gear update frequency is set to 5 (5 periodic gear updates). The gear stages are generally classified into-16 to 16 gears, and correspond to an acceleration of-1 m/s2 (meters per second square) to an acceleration of 1m/s2 (meters per second square). When the gear is a negative number, the train is represented to run at a reduced speed; when the gear is positive, the train is represented to run in an accelerated manner.
In other embodiments, when the warning speed is higher than the preset speed, the initial departure level can also be set to be lower, and the gear updating frequency can also be set to be relatively higher, so that the warning speed is not easy to trigger, but the riding comfort of passengers is influenced to a certain extent. When the alarm speed is lower than the set preset speed, the initial departure level is not suitable for being set to be higher, and the emergency braking of the railway vehicle is easily caused because the acceleration is too fast to exceed the alarm speed and even exceeds the emergency braking triggering speed.
In some embodiments, as shown in fig. 1, after determining an initial departure level, a gear update frequency and a maximum departure level, step S103 is performed to automatically adjust the departure level according to the initial departure level, the gear update frequency and the maximum departure level.
In some embodiments, the following method is mainly adopted for automatically adjusting the departure level in step S103:
and according to the gear updating frequency, when the gear is updated every time, increasing a first gear on the basis of the gear of the previous departure gear until the gear corresponding to the maximum departure gear is increased.
In some embodiments, after determining an initial departure stage, a gear updating frequency and a maximum departure stage, the rail vehicle is departed and operated at the initial departure stage, during the operation of the rail vehicle, the gear is updated according to the gear updating frequency, gear updating is performed for the first time, namely, a gear is added on the basis of the gear of the initial departure stage, and then, each time the gear is updated according to the gear updating frequency, a gear is added on the basis of the previous gear, so that the automatic adjustment of the departure stage of the rail vehicle is realized. In order to prevent the departure level of the rail vehicle from increasing infinitely, the maximum departure level may be set for limitation. When the departure level of the railway vehicle is increased according to the gear updating frequency, the increase is stopped until the maximum departure level is reached, so that the infinite increase of the departure level is prevented, and the alarm speed is triggered.
Fig. 3 illustrates an on-board controller 100 according to an embodiment of the present invention.
In some embodiments, as shown in fig. 3, the onboard controller 100 includes an acquisition module 10, a determination module 20, and an adjustment module 30. The obtaining module 10 is used for obtaining the alarm speed. The determining module 20 is configured to determine an initial departure step, a gear update frequency, and a maximum departure step according to the alarm speed. The adjusting module 30 is configured to automatically adjust the departure step according to the initial departure step, the gear update frequency, and the maximum departure step.
In some embodiments, the obtaining module 10 in the vehicle-mounted controller 100 first obtains the warning speed of the platform, and after obtaining the warning speed, the warning speed is transmitted to the determining module 20, and the determining module 20 determines the gear size, the gear updating frequency and other data of the initial departure level of the rail vehicle according to the magnitude of the warning speed, and further needs to determine the maximum departure level of the rail vehicle to prevent the departure level from being too large. After the determination module 20 determines the initial departure step, the gear update frequency, and the maximum departure step, the data are passed to the adjustment module 30. The adjusting module 30 updates the departure level according to the gear updating frequency, and the updated departure level cannot exceed the maximum departure level. Therefore, the automatic adjustment of the departure level of the railway vehicle can be realized. It should be noted that the gear here refers to that the departure gear can be divided into a plurality of gears according to different sizes, and is generally divided into-16 gears to 16 gears, and corresponds to an acceleration of-1 m/s2 (meters per square second) to an acceleration of 1m/s2 (meters per square second). When the gear is a negative number, the train runs in a deceleration mode; when the gear is positive, the train is represented to run in an accelerated manner.
Through the cooperation of the obtaining module 10, the determining module 20 and the adjusting module 30 in the vehicle-mounted controller 100, the rail vehicle departure level can be adjusted according to the alarm speed, so that the alarm speed of a platform can be prevented from being triggered. And further, the gear updating frequency is set, so that the gear of the departure level is stably increased until the maximum departure level is reached, the departure of the railway vehicle is stable, and the riding comfort of passengers is improved.
In some embodiments, as shown in fig. 4, the onboard controller 100 further includes a calculation module 40, and the calculation module 40 is used for calculating the emergency braking trigger speed and the alarm speed. The emergency braking triggering speed is calculated by the calculation module 40 in the vehicle-mounted controller 100 according to a related algorithm, and the algorithm for calculating the emergency braking triggering speed is various and will not be described herein. After the emergency braking trigger speed is obtained, the alarm speed can be calculated according to the emergency braking trigger speed. The process of obtaining the alarm speed is simpler, namely, a reasonable speed lower than the emergency braking trigger speed is taken as the alarm speed. It should be noted that the method for obtaining the alarm speed is not limited to this method, and may also be obtained by other methods. Generally, the alarm speed is lower than the emergency brake trigger speed, so that when the rail vehicle reaches the alarm speed but does not reach the emergency brake trigger speed, alarm information is sent out to the rail vehicle, and the rail vehicle is decelerated.
In some embodiments, the adjusting module 30 is further configured to increase a gear on the basis of the gear of the previous departure gear at each gear update according to the gear update frequency until the gear corresponding to the maximum departure gear is increased.
In some embodiments, the rail vehicle is dispatched at an initial dispatching level, the gears are updated according to the gear updating frequency, the first gear updating is carried out, namely, a gear is added on the basis of the gear of the initial dispatching level, and then, each time the gears are updated according to the gear updating frequency, a gear is added on the basis of the previous gear, so that the dispatching level of the rail vehicle is automatically adjusted. In order to prevent the departure level of the rail vehicle from increasing indefinitely, it may be defined by setting a maximum departure level. When the departure level of the railway vehicle is increased according to the gear updating frequency, the increase is stopped until the maximum departure level is reached, so that the infinite increase of the departure level is prevented, and the alarm speed is triggered.
In some embodiments, as shown in fig. 5, the vehicle-mounted controller 100 further includes an output module 50, and the output module 50 is used for outputting the departure level. In the process of dispatching the railway vehicle, the dispatching level is continuously adjusted according to the gear updating frequency, and at the moment, the output module 50 outputs the dispatching level, so that the railway vehicle is controlled to operate according to the corresponding dispatching level.
In one embodiment, a controller is provided, which includes a memory, a processor, a receiver, a transmitter, and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to implement the steps of the automatic adjustment method for departure level in the foregoing embodiments. Such as steps S101-S103 shown in fig. 1 and S201-S202 shown in fig. 2.
In some embodiments, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the automatic departure level adjustment method in the above embodiments. Such as steps S101-S103 shown in fig. 1 and S201-S202 shown in fig. 2.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An automatic adjustment method for departure level is characterized by comprising the following steps:
acquiring an alarm speed;
determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed;
automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level; and according to the gear updating frequency, when the gear is updated every time, increasing a first gear on the basis of the gear of the previous departure gear until the first gear is increased to the gear corresponding to the maximum departure gear.
2. The method according to claim 1, wherein the obtaining an alarm speed comprises:
calculating the emergency braking trigger speed;
and calculating and acquiring the alarm speed according to the emergency braking trigger speed.
3. The method for automatically adjusting the departure level according to claim 1, wherein said determining an initial departure level, a gear update frequency and a maximum departure level according to said warning speed comprises:
when the alarm speed is higher than a preset speed, the determined gear of the initial departure gear is higher than a preset gear, and the gear updating frequency is lower than a preset frequency;
and when the alarm speed is lower than the preset speed, the determined gear of the initial departure gear is lower than the preset gear, and the gear updating frequency is higher than the preset frequency.
4. An onboard controller, comprising:
the acquisition module is used for acquiring the alarm speed;
the determining module is used for determining an initial departure level, a gear updating frequency and a maximum departure level according to the alarm speed;
the adjusting module is used for automatically adjusting the departure level according to the initial departure level, the gear updating frequency and the maximum departure level; the adjusting module is further used for increasing a first gear on the basis of the gear of the previous departure gear position until the gear corresponding to the maximum departure gear position is increased according to the gear updating frequency when the gear is updated every time.
5. The vehicle-mounted controller of claim 4, further comprising a calculation module for calculating an emergency braking speed and an alarm speed.
6. The vehicle-mounted controller according to claim 4, further comprising an output module for outputting the departure level.
7. A controller comprising a memory, a processor, a receiver, a transmitter, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of automatic departure level adjustment of any of claims 1 to 3.
8. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements the method for automatic adjustment of departure level according to any one of claims 1 to 3.
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