Control Method, Device, Equipment and Medium for Tracking Operation of Passenger and Freight Trains on Ramps

Abstract

The present invention provides a control method, device, equipment and medium for the ramp tracking operation of passenger and freight trains, which relates to the technical field of intelligent transportation. The method includes: determining the maximum running time and the minimum running time for the passenger train to pass through the target ramp based on the current vehicle speed of the passenger train and the preset ramp vehicle control strategy; in the case that the first planned running time for the passenger train to pass through the target ramp exceeds the time range formed by the maximum running time and the minimum running time, adjusting the first planned running time and the first planned running speed for the passenger train to pass through the target ramp, controlling the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determining the lowest ramp leading speed for providing operation strategy guidance for the operation of the preceding tracked freight train on the target ramp. The present invention can provide operation strategy guidance for the preceding tracked freight train of the passenger train and ensure the safe operation of the train.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent transportation, and particularly to a control method, device, equipment and medium for the ramp tracking operation of passenger and freight trains. Background Art

[0002] The average running speed of freight trains in long uphill sections is slow, and the acceleration is sluggish. Moreover, when passenger and freight trains are mixed in operation, the adjustment of their running speed depends on the operation instructions notified by the dispatcher to the driver. At this time, it cannot respond well to busy operation plans, which brings challenges to the dispatcher.

[0003] In continuous long downhill sections, there are strict requirements and restrictions on the location and speed of pressure reduction / relief of freight trains. When the driver manually drives the freight train according to the operation specifications, both the vehicle speed control and the use of brakes depend on the driver's own experience. When tracking the operation, it lacks recognition and judgment of the subsequent running trains, and it is difficult to ensure the safe operation of the train. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a control method, device, equipment and medium for the ramp tracking operation of passenger and freight trains.

[0005] In a first aspect, the present invention provides a control method for the ramp tracking operation of passenger and freight trains, including:

[0006] Based on the current vehicle speed of the passenger train and the preset ramp vehicle control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp;

[0007] Determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp;

[0008] In the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the preceding tracked freight train of the passenger train, where the lowest ramp leading speed is used to provide a running strategy guide for the running of the preceding tracked freight train on the target ramp.

[0009] Optionally, according to a control method for the ramp tracking operation of passenger and freight trains provided by the present invention, the determining the first planned running time and the first planned running speed for the passenger train to pass through the target ramp includes:

[0010] Taking each sub-ramp in the target ramp as the target sub-ramp;

[0011] Based on the speed influencing factors of the passenger train running on the target sub-ramp, determine the second planned running time and the second planned running speed of the passenger train passing through the target sub-ramp;

[0012] Based on the second planned running time of the passenger train passing through each of the target sub-ramps, determine the first planned running time of the passenger train passing through the target ramp, and based on the second planned running speed of the passenger train passing through each of the target sub-ramps, determine the first planned running speed of the passenger train passing through the target ramp.

[0013] Optionally, according to a control method for the ramp tracking operation of a passenger and freight train provided by the present invention, the determining the first planned running speed of the passenger train passing through the target ramp based on the second planned running speed of the passenger train passing through each of the target sub-ramps includes:

[0014] Based on the second planned running speed of the passenger train passing through each of the target sub-ramps, the ramp angle of each of the target sub-ramps, and the traction and braking characteristics of the passenger train, determine the average running speed of the passenger train passing through the target ramp, and use the average running speed as the first planned running speed.

[0015] Optionally, according to a control method for the ramp tracking operation of a passenger and freight train provided by the present invention, the adjusting the first planned running time and the first planned running speed includes:

[0016] Determine the traction and braking characteristics, train formation, and passing and avoidance plan of the preceding freight train to be tracked;

[0017] Based on the traction and braking characteristics, train formation, and passing and avoidance plan of the preceding freight train to be tracked, adjust the first planned running time and the first planned running speed.

[0018] Optionally, according to a control method for the ramp tracking operation of a passenger and freight train provided by the present invention, the preceding freight train to be tracked includes a first preceding freight train and a second preceding freight train, and the second preceding freight train is the preceding leading train of the first preceding freight train;

[0019] The adjusting the first planned running time and the first planned running speed based on the traction and braking characteristics, train formation, and passing and avoidance plan of the preceding freight train to be tracked includes:

[0020] Based on the traction and braking characteristics of the second preceding freight train, the train formation situation, and the overtaking and avoidance plan, adjust the third planned running time and the third planned running speed of the first preceding freight train passing through the target ramp, and determine the time adjustment amount for adjusting the third planned running time and the speed adjustment amount for adjusting the third planned running speed;

[0021] Based on the time adjustment amount, adjust the first planned running time, and based on the speed adjustment amount, adjust the first planned running speed.

[0022] Optionally, according to a control method for ramp tracking operation of passenger and freight trains provided by the present invention, the determination of the minimum ramp leading speed of the preceding freight train to be tracked by the passenger train includes:

[0023] Based on the adjusted third planned running time and the third planned running speed, determine the minimum ramp leading speed of the second preceding freight train;

[0024] Based on the adjusted first planned running time and the first planned running speed, determine the minimum ramp leading speed of the first preceding freight train.

[0025] Optionally, according to a control method for ramp tracking operation of passenger and freight trains provided by the present invention, the adjustment of the first planned running time and the first planned running speed further includes:

[0026] When it is determined that there is no preceding freight train to be tracked by the passenger train on the target ramp currently, adjust the first planned running time based on the greedy principle, and adjust the first planned running speed based on the train operation supervision curve corresponding to the passenger train.

[0027] In a second aspect, the present invention further provides a control device for ramp tracking operation of passenger and freight trains, including:

[0028] A first determination module, configured to determine the maximum running time and the minimum running time of the passenger train passing through the target ramp based on the current vehicle speed of the passenger train and a preset ramp control strategy;

[0029] A second determination module, configured to determine the first planned running time and the first planned running speed of the passenger train passing through the target ramp;

[0030] An adjustment module is configured to adjust the first planned running time and the first planned running speed when it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time. Based on the adjusted first planned running time and the first planned running speed, control the passenger train to run on the target ramp, and determine the lowest ramp leading speed of the preceding freight train being tracked by the passenger train. The lowest ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp.

[0031] In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the control method for the ramp tracking operation of passenger and freight trains as described in the first aspect.

[0032] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the control method for the ramp tracking operation of passenger and freight trains as described in the first aspect.

[0033] The control method, device, equipment, and medium for the ramp tracking operation of passenger and freight trains provided by the present invention determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp based on the current vehicle speed of the passenger train and the preset ramp vehicle control strategy. At the same time, determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp. When it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed. Based on the adjusted first planned running time and the first planned running speed, control the passenger train to run on the target ramp, and determine the lowest ramp leading speed of the preceding freight train being tracked by the passenger train. The lowest ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp. It not only effectively realizes the automatic control of the passenger train passing through the target ramp, ensures the punctuality and comfort of the passenger train, but also provides a running strategy guidance for the preceding freight train being tracked by the passenger train, ensuring the safety of the freight train. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1It is a schematic flow chart of the control method for the passenger and freight train to track and run on the slope provided by the present invention;

[0036] Figure 2 It is a schematic structural diagram of the control device for the passenger and freight train to track and run on the slope provided by the present invention;

[0037] Figure 3 It is a schematic physical structure diagram of the electronic device provided by the present invention. Specific embodiments

[0038] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that in the description of the present invention, the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category, and the number of objects is not limited. For example, the first object can be one or multiple.

[0040] The control method, device, equipment and medium for the passenger and freight train to track and run on the slope provided by the present invention will be introduced exemplarily below in conjunction with the accompanying drawings.

[0041] Figure 1 It is a schematic flow chart of the control method for the passenger and freight train to track and run on the slope provided by the present invention. As Figure 1 shown, the method includes:

[0042] Step 100, based on the current vehicle speed of the passenger train and the preset slope control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target slope;

[0043] Step 110, determine the first planned running time and the first planned running speed for the passenger train to pass through the target slope;

[0044] Step 120, in case it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the minimum ramp leading speed of the preceding freight train being tracked by the passenger train, where the minimum ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp.

[0045] It should be noted that the execution subject of the control method for the ramp tracking operation of passenger and freight trains provided in the embodiments of the present invention can be an electronic device, a component in the electronic device, an integrated circuit, or a chip. The electronic device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a wearable device, an Ultra-mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc., and the non-mobile electronic device can be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, or a self-service machine, etc. The embodiments of the present invention do not make specific limitations in this regard.

[0046] Taking the computer executing the control method for the ramp tracking operation of passenger and freight trains provided by the present invention as an example, the technical solutions of the embodiments of the present invention will be described in detail below.

[0047] Specifically, in order to overcome the deficiencies of the prior art that both the vehicle speed control and braking use rely on the driver's own experience, and there is a lack of recognition and judgment for the subsequent running trains during tracking operation, making it difficult to ensure the safe operation of the train, the present invention determines the maximum running time and the minimum running time for the passenger train to pass through the target ramp based on the current vehicle speed of the passenger train and the preset ramp control strategy. At the same time, the first planned running time and the first planned running speed for the passenger train to pass through the target ramp are determined. And in the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, the first planned running time and the first planned running speed are adjusted. The passenger train is controlled to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and the lowest ramp leading speed of the preceding tracked freight train of the passenger train is determined. This lowest ramp leading speed is used to provide a running strategy guidance for the preceding tracked freight train to run on the target ramp, not only effectively realizing the automatic control of the passenger train passing through the target ramp, ensuring the punctuality and comfort of the passenger train, but also providing a running strategy guidance for the preceding tracked freight train of the passenger train, ensuring the safety of the freight train.

[0048] It should be noted that the control method for the ramp tracking operation of passenger and freight trains provided in the embodiments of the present invention can be applied to the automatic driving control system of trains.

[0049] It should be noted that the control method for the ramp tracking operation of passenger and freight trains provided in the embodiments of the present invention can be applicable to the scenario where a passenger train tracks its preceding freight train on a long and steep ramp.

[0050] It should be noted that the control method for the ramp tracking operation of passenger and freight trains provided in the embodiments of the present invention can be applicable to both the downhill tracking scenario where the passenger train is behind and the freight train is in front, and the uphill tracking scenario where the passenger train is behind and the freight train is in front.

[0051] It should be noted that the target ramp in the embodiments of the present invention can be a long and steep ramp.

[0052] Optionally, the target ramp data can be obtained through ground or electronic map data. When it is determined that the passenger train arrives at the target ramp, the maximum running time and the minimum running time for the passenger train to pass through the target ramp can be determined based on the current vehicle speed of the passenger train and the preset ramp control strategy, serving as the upper and lower limits for the running time adjustment of the passenger train passing through the target ramp, that is, the punctual running time and the safe running time.

[0053] Optionally, the ramp control strategy may include an energy-saving operation strategy for a preset passenger train and a train safety operation curve strategy calculated by an Automatic Train Protection (ATP) or a Linson Kwesi Johnson (LKJ).

[0054] Optionally, based on the specific target ramp line conditions and the ramp control strategy, the first planned running time and the first planned running speed of the passenger train passing through the target ramp can be determined.

[0055] Optionally, when it is determined that the first planned running time of the passenger train passing through the target ramp exceeds the time range formed by the maximum running time and the minimum running time obtained from the foregoing calculation, the first planned running time and the first planned running speed are adjusted, and the passenger train is controlled to run on the target ramp based on the adjusted first planned running time and first planned running speed, and the minimum ramp leading speed of the preceding freight train being tracked by the passenger train is determined, and the minimum ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp.

[0056] Optionally, after determining the first planned running time of the passenger train passing through the target ramp, the first planned running time can be compared with the on-time running time and the safe running time (the maximum running time and the minimum running time), and there are the following three situations:

[0057] (1) The first planned running time is less than the safe running time. In this case, there is no meaning in adjustment, and the best strategy is to run at full speed (run according to the safe running time);

[0058] (2) The first planned running time exceeds the time range where the on-time running time and the safe running time are located. In this case, the first planned running time and the first planned running speed need to be adjusted;

[0059] (3) The first planned running time does not exceed the time range where the on-time running time and the safe running time are located. In this case, no adjustment is required.

[0060] It can be understood that in the embodiment of the present invention, when it is determined that the first planned running time of the passenger train passing through the target ramp exceeds the time range formed by the maximum running time and the minimum running time obtained from the foregoing calculation, the first planned running time and the first planned running speed are adjusted, that is, the planned running time of the passenger train passing through the target ramp is adjusted to be between the minimum running time and the maximum running time, so as to ensure the punctuality and comfort of the passenger train.

[0061] It can be understood that in the embodiments of the present invention, by determining the minimum ramp leading speed of the preceding tracked freight train of the passenger train, this minimum ramp leading speed can provide an operation strategy guidance for the operation of the preceding tracked freight train on the target ramp, thus ensuring the safety of the freight train.

[0062] The control method for the ramp tracking operation of passenger and freight trains provided by the present invention determines the maximum operation time and the minimum operation time for the passenger train to pass through the target ramp based on the current vehicle speed of the passenger train and the preset ramp vehicle control strategy. At the same time, it determines the first planned operation time and the first planned operation speed for the passenger train to pass through the target ramp, and in the case where it is determined that the first planned operation time exceeds the time range formed by the maximum operation time and the minimum operation time, adjusts the first planned operation time and the first planned operation speed, controls the passenger train to operate on the target ramp based on the adjusted first planned operation time and the first planned operation speed, and determines the minimum ramp leading speed of the preceding tracked freight train of the passenger train. This minimum ramp leading speed is used to provide an operation strategy guidance for the operation of the preceding tracked freight train on the target ramp, not only effectively realizing the automatic control of the passenger train passing through the target ramp, ensuring the punctuality and comfort of the passenger train, but also providing an operation strategy guidance for the preceding tracked freight train of the passenger train, ensuring the safety of the freight train.

[0063] Optionally, the determining the first planned operation time and the first planned operation speed for the passenger train to pass through the target ramp includes:

[0064] Regarding each sub-ramp in the target ramp as a target sub-ramp;

[0065] Based on the speed influencing factors of the passenger train running on the target sub-ramp, determining the second planned operation time and the second planned operation speed for the passenger train to pass through the target sub-ramp;

[0066] Based on the second planned operation time for the passenger train to pass through each target sub-ramp, determining the first planned operation time for the passenger train to pass through the target ramp, and based on the second planned operation speed for the passenger train to pass through each target sub-ramp, determining the first planned operation speed for the passenger train to pass through the target ramp.

[0067] Specifically, in the embodiments of the present invention, in order to determine the first planned running time and the first planned running speed of a passenger train passing through a target ramp, each sub-ramp in the target ramp can be used as a target sub-ramp. Based on the speed influencing factors of the passenger train running on the target sub-ramp, the second planned running time and the second planned running speed of the passenger train passing through the target sub-ramp are determined. Then, based on the second planned running time of the passenger train passing through each target sub-ramp, the first planned running time of the passenger train passing through the target ramp is determined, and based on the second planned running speed of the passenger train passing through each target sub-ramp, the first planned running speed of the passenger train passing through the target ramp is determined.

[0068] It can be understood that in the embodiments of the present invention, by first calculating the planned running time and the planned running speed of the passenger train passing through each sub-ramp one by one, and then based on the planned running time and the planned running speed of each sub-ramp, the planned running time and the planned running speed of the passenger train passing through the entire ramp (target ramp) are determined.

[0069] Optionally, in the embodiments of the present invention, the speed influencing factors of the passenger train running on the target sub-ramp may include: line condition speed limit: line design speed limit and curve speed limit; ATP or LKJ speed limit: calculated train safe operation curve speed limit; energy saving and driving strategy speed limit: energy saving operation curve and fixed driving strategy curve (reducing the fixed speed compared to the safe operation curve).

[0070] Optionally, taking the start and end points of the passenger train passing through the target sub-ramp as a calculation unit, considering all the above speed influencing factors, the planned running time of each target sub-ramp can be calculated with as little adjustment as possible.

[0071] In the embodiments of the present invention, by calculating the planned running time and the planned running speed of the passenger train passing through each target sub-ramp one by one, and then based on the planned running time and the planned running speed of each target sub-ramp, the planned running time and the planned running speed of the passenger train passing through the entire ramp are determined, which can more accurately determine the planned running time and the planned running speed of the passenger train passing through the target ramp.

[0072] Optionally, the determining the first planned running speed of the passenger train passing through the target ramp based on the second planned running speed of the passenger train passing through each target sub-ramp includes:

[0073] Based on the second planned running speed of the passenger train passing through each target sub-ramp, the ramp angle of each target sub-ramp, and the traction and braking characteristics of the passenger train, the average running speed of the passenger train passing through the target ramp is determined, and the average running speed is used as the first planned running speed.

[0074] Specifically, in the embodiments of the present invention, the average running speed of the passenger train passing through the target ramp can be determined based on the second planned running speed of the passenger train passing through each target sub-ramp, the ramp angle of each target sub-ramp, and the traction and braking characteristics of the passenger train, and this average running speed is used as the first planned running speed of the passenger train passing through the target ramp.

[0075] It should be noted that for the downhill tracking scenario, the calculation of the average ramp running speed needs to consider the differences in the braking characteristics of passenger trains and freight trains. Passenger trains use electro-pneumatic brakes, and electro-pneumatic brakes can be used to brake and decelerate as needed throughout the downhill stage. Freight trains that mainly rely on brake shoes need to re-inflate and release pressure regularly. Considering the periodic characteristics of their braking, the average vehicle speed is evaluated in stages of pressure reduction response, gradually increasing braking force, stable braking force, pressure increase response, gradually decreasing braking force, and no braking force.

[0076] In the embodiments of the present invention, by determining the average running speed of the train passing through the target ramp based on the train plan, the ramp angle, and the traction and braking characteristics of the train, this average running speed is the most economical running speed for passing through the target ramp.

[0077] Optionally, the adjustment of the first planned running time and the first planned running speed includes:

[0078] Determine the traction and braking characteristics, train formation, and overtaking and avoidance plan of the preceding tracked freight train;

[0079] Based on the traction and braking characteristics, train formation, and overtaking and avoidance plan of the preceding tracked freight train, adjust the first planned running time and the first planned running speed.

[0080] Specifically, in the embodiments of the present invention, in order to adjust the first planned running time and the first planned running speed, the traction and braking characteristics, train formation, and overtaking and avoidance plan of the preceding tracked freight train of the passenger train can be determined first, and then the first planned running time and the first planned running speed are adjusted based on the traction and braking characteristics, train formation, and overtaking and avoidance plan of the preceding tracked freight train.

[0081] Optionally, the traction and braking characteristics, train formation, and overtaking and avoidance plan of the preceding tracked freight train can be obtained in real time from a remote device or a freight train plan.

[0082] In the embodiment of the present invention, by adjusting the first planned running time and the first planned running speed of the passenger train passing through the target ramp based on the traction and braking characteristics of the preceding freight train to be tracked, the train formation situation, and the overtaking and avoidance plan, the running plan of the preceding freight train to be tracked and the traction and braking characteristics of the preceding freight train to be tracked itself are considered, which can ensure a safer and more economical adjustment of the first planned running time and the first planned running speed.

[0083] Optionally, the preceding freight train to be tracked includes a first preceding freight train and a second preceding freight train, and the second preceding freight train is the preceding leading train of the first preceding freight train;

[0084] Adjusting the first planned running time and the first planned running speed based on the traction and braking characteristics of the preceding freight train to be tracked, the train formation situation, and the overtaking and avoidance plan includes:

[0085] Adjusting the third planned running time and the third planned running speed of the first preceding freight train passing through the target ramp based on the traction and braking characteristics of the second preceding freight train, the train formation situation, and the overtaking and avoidance plan, and determining the time adjustment amount for adjusting the third planned running time and the speed adjustment amount for adjusting the third planned running speed;

[0086] Adjusting the first planned running time based on the time adjustment amount and adjusting the first planned running speed based on the speed adjustment amount.

[0087] Specifically, in the embodiment of the present invention, the preceding freight train to be tracked includes a first preceding freight train and a second preceding freight train, and the second preceding freight train is the preceding leading train of the first preceding freight train. The third planned running time and the third planned running speed of the first preceding freight train passing through the target ramp can be adjusted based on the traction and braking characteristics of the second preceding freight train, the train formation situation, and the overtaking and avoidance plan, and the time adjustment amount for adjusting the third planned running time and the speed adjustment amount for adjusting the third planned running speed can be determined. Furthermore, the first planned running time is adjusted based on the foregoing time adjustment amount, and the first planned running speed is adjusted based on the foregoing speed adjustment amount.

[0088] It can be understood that in the case where the passenger train has multiple preceding freight trains to be tracked (for example, freight train 1 leads freight train 2, and freight train 2 leads the passenger train), the planned running time adjustment amount and the planned running speed adjustment amount of the preceding freight train to be tracked can be successively transmitted to the subsequent trains as reference values for adjusting the planned running time and the planned running speed of the subsequent trains.

[0089] It should be noted that from the moment when the preceding tracked freight train starts to affect the running speed of the passenger train until it overtakes and gives way or the passenger train reaches its destination, this stage is called the pilot driving stage.

[0090] Optionally, during the pilot driving stage, the subsequent passenger train can provide the lowest ramp pilot speed guidance for the preceding tracked freight train and supervise the preceding tracked freight train, and the subsequent passenger train follows and tracks according to the running curve of the preceding tracked freight train.

[0091] Optionally, it is possible to determine whether to transmit the pilot state according to the traction ramp running curve of the freight train. When the operation of the preceding train affects the calculation of the maximum safe speed of the subsequent train, the pilot state can be transmitted. As the train runs, if it is determined that the current freight train has given way or accelerated out of the pilot stage of the current tracked train, the subsequent calculation will no longer consider the current freight train.

[0092] It can be understood that in the case where the passenger train has multiple preceding tracked freight trains, in the embodiments of the present invention, by successively transmitting the planned running time adjustment amount and the planned running speed adjustment amount of the preceding tracked freight train to the subsequent train as the reference values for the planned running time and planned running speed adjustment of the subsequent train, it is possible to ensure a safer and more economical adjustment of the planned running time and planned running speed of the passenger train passing through the target channel.

[0093] Optionally, determining the lowest ramp pilot speed of the preceding tracked freight train of the passenger train includes:

[0094] Based on the adjusted third planned running time and the third planned running speed, determining the lowest ramp pilot speed of the second preceding freight train;

[0095] Based on the adjusted first planned running time and the first planned running speed, determining the lowest ramp pilot speed of the first preceding freight train.

[0096] Specifically, in the embodiments of the present invention, in the case where the passenger train has multiple preceding tracked freight trains, in order to determine the lowest ramp pilot speed of the preceding tracked freight train of the passenger train, it is possible to determine the lowest ramp pilot speed of the second preceding freight train based on the adjusted third planned running time and the third planned running speed, and determine the lowest ramp pilot speed of the first preceding freight train based on the adjusted first planned running time and the first planned running speed.

[0097] It should be noted that for the downhill running scenario, when determining the minimum ramp leading speed of the preceding freight train to be tracked, the periodic braking interval of the freight train during downhill running needs to be considered. Taking the periodic braking of the freight train as the main consideration factor, the minimum ramp leading speed of the preceding freight train to be tracked is determined.

[0098] It can be understood that in the case where the passenger train has multiple preceding freight trains to be tracked, the embodiments of the present invention can simultaneously provide the minimum ramp leading speed guidance for multiple preceding freight trains to be tracked, which can not only avoid the preceding freight trains to be tracked from congesting the passenger train in terms of plan, but also take into account the economic and safe operation of the freight trains at the same time.

[0099] Optionally, the adjustment of the first planned running time and the first planned running speed further includes:

[0100] In the case where it is determined that there is no preceding freight train to be tracked on the target ramp for the passenger train, the first planned running time is adjusted based on the greedy principle, and the first planned running speed is adjusted based on the train operation supervision curve corresponding to the passenger train.

[0101] Specifically, in the embodiments of the present invention, in order to adjust the first planned running time and the first planned running speed, if it is determined that there is no preceding freight train to be tracked on the target ramp for the passenger train, the first planned running time can be adjusted as much as possible at one time based on the greedy principle, and the first planned running speed is adjusted based on the train operation supervision curve corresponding to the passenger train.

[0102] Optionally, the train operation supervision curve corresponding to the passenger train can be obtained in real time from a remote device or a freight train plan.

[0103] In the embodiments of the present invention, by adjusting the first planned running time as much as possible at one time based on the greedy principle and adjusting the first planned running speed based on the train operation supervision curve corresponding to the passenger train in the case where it is determined that there is no preceding freight train to be tracked on the target ramp for the passenger train, it can ensure a safer and more economical adjustment of the planned running time and the planned running speed of the passenger train passing through the target channel.

[0104] It should be noted that the control method for the ramp tracking operation of passenger and freight trains provided by the embodiments of the present invention is applicable to the automatic driving control during the co-line tracking of passenger and freight trains on long ramps, so as to adapt to the flexibility of freight train formation and scheduling, the differences in the traction characteristics of passenger and freight trains, and the braking characteristics of passenger and freight trains on long ramps, and ensure the comfort, punctuality, and energy-saving requirements of passenger trains; fully consider the operating characteristics of passenger and freight trains on ramps and the characteristics of slow average operating speed, slow acceleration, and periodic deceleration of freight trains on ramps, and ensure the smoothness and economy of freight train operation as much as possible on the basis of ensuring the punctuality of passenger trains; and not only consider the tracking of a pair of passenger and freight trains on ramps, but also comprehensively consider the complex characteristics of the passenger and freight line transportation situation, and at the same time provide the lowest ramp leading speed guidance for multiple preceding tracked freight trains, which can not only avoid the situation that the preceding tracked freight trains hold up the passenger trains in terms of plan, but also take into account the economic and safe operation of freight trains.

[0105] It should be noted that the control method for the ramp tracking operation of passenger and freight trains provided by the embodiments of the present invention is not bound to the control system type, communication method, and train operation status. The specific implementation of the method can be designed according to specific conditions to adapt to multi-type, multi-communication methods, multi-plans, and formation operations.

[0106] The control method for the ramp tracking operation of passenger and freight trains provided by the present invention determines the maximum running time and the minimum running time for the passenger train to pass through the target ramp by based on the current vehicle speed of the passenger train and the preset ramp control strategy, and at the same time determines the first planned running time and the first planned running speed for the passenger train to pass through the target ramp. And in the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the preceding tracked freight train of the passenger train. The lowest ramp leading speed is used to provide operation strategy guidance for the operation of the preceding tracked freight train on the target ramp, which not only effectively realizes the automatic control of the passenger train passing through the target ramp, ensures the punctuality and comfort of the passenger train, but also provides operation strategy guidance for the preceding tracked freight train of the passenger train, ensuring the safety of the freight train.

[0107] Next, the control device for the ramp tracking operation of passenger and freight trains provided by the present invention will be described. The control device for the ramp tracking operation of passenger and freight trains described below can be mutually referred to the control method for the ramp tracking operation of passenger and freight trains described above.

[0108] Figure 2 is a schematic structural diagram of the control device for the ramp tracking operation of passenger and freight trains provided by the present invention, as Figure 2As shown in the figure, the device includes: a first determination module 210, a second determination module 220, and an adjustment module 230; where:

[0109] The first determination module 210 is configured to determine a maximum running time and a minimum running time for the passenger train to pass through the target ramp based on the current speed of the passenger train and a preset ramp control strategy.

[0110] The second determination module 220 is configured to determine a first planned running time and a first planned running speed for the passenger train to pass through the target ramp.

[0111] The adjustment module 230 is configured to, when it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the minimum ramp leading speed of the preceding freight train being tracked by the passenger train, where the minimum ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked by the passenger train to run on the target ramp.

[0112] The control device for the ramp tracking operation of passenger and freight trains provided by the present invention determines a maximum running time and a minimum running time for the passenger train to pass through the target ramp based on the current speed of the passenger train and a preset ramp control strategy, and at the same time determines a first planned running time and a first planned running speed for the passenger train to pass through the target ramp. When it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, the first planned running time and the first planned running speed are adjusted, and the passenger train is controlled to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and the minimum ramp leading speed of the preceding freight train being tracked by the passenger train is determined. The minimum ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked by the passenger train to run on the target ramp, which not only effectively realizes the automatic control of the passenger train passing through the target ramp, ensures the punctuality and comfort of the passenger train, but also provides a running strategy guidance for the preceding freight train being tracked by the passenger train, ensuring the safety of the freight train.

[0113] It should be noted here that the above control device for the ramp tracking operation of passenger and freight trains provided by the embodiments of the present invention can implement all the method steps implemented by the above embodiments of the control method for the ramp tracking operation of passenger and freight trains, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0114] Figure 3This is a schematic diagram of the physical structure of the electronic device provided by the present invention. As Figure 3 shown, the electronic device may include: a processor 310, a communications interface 320, a memory 330, and a communication bus 340. Among them, the processor 310, the communications interface 320, and the memory 330 communicate with each other through the communication bus 340. The processor 310 may call the logical instructions in the memory 330 to execute the control method for the ramp tracking operation of the passenger and freight trains provided by the above-mentioned various methods. The method includes:

[0115] Based on the current vehicle speed of the passenger train and the preset ramp control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp;

[0116] Determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp;

[0117] In the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the previous freight train being tracked by the passenger train. The lowest ramp leading speed is used to provide a running strategy guide for the previous freight train being tracked to run on the target ramp.

[0118] In addition, when the logical instructions in the above-mentioned memory 330 are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0119] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the control method for the ramp tracking operation of passenger and freight trains provided by the above-mentioned various methods. The method includes:

[0120] Based on the current vehicle speed of the passenger train and a preset ramp control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp;

[0121] Determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp;

[0122] In the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the preceding freight train being tracked by the passenger train. The lowest ramp leading speed is used to provide a running strategy guide for the preceding freight train being tracked to run on the target ramp.

[0123] On another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the control method for the ramp tracking operation of passenger and freight trains provided by the above-mentioned various methods. The method includes:

[0124] Based on the current vehicle speed of the passenger train and a preset ramp control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp;

[0125] Determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp;

[0126] In the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the preceding freight train being tracked by the passenger train. The lowest ramp leading speed is used to provide a running strategy guide for the preceding freight train being tracked to run on the target ramp.

[0127] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative work.

[0128] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for the ramp tracking operation of a passenger and freight train, characterized in that, Including: Based on the current speed of the passenger train and the preset ramp control strategy, determine the maximum running time and the minimum running time for the passenger train to pass through the target ramp; Determine the first planned running time and the first planned running speed for the passenger train to pass through the target ramp; In the case where it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the lowest ramp leading speed of the preceding freight train being tracked by the passenger train, where the lowest ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp; The adjustment of the first planned running time and the first planned running speed includes: Determine the traction and braking characteristics, train formation situation, and overtaking and avoidance plan of the preceding freight train being tracked, where the preceding freight train being tracked includes a first preceding freight train and a second preceding freight train, and the second preceding freight train is the preceding leading train of the first preceding freight train; Based on the traction and braking characteristics, train formation situation, and overtaking and avoidance plan of the second preceding freight train, adjust the third planned running time and the third planned running speed for the first preceding freight train to pass through the target ramp, and determine the time adjustment amount for adjusting the third planned running time and the speed adjustment amount for adjusting the third planned running speed; Based on the time adjustment amount, adjust the first planned running time, and based on the speed adjustment amount, adjust the first planned running speed.

2. The control method for the ramp tracking operation of a passenger and freight train according to claim 1, wherein The determination of the first planned running time and the first planned running speed for the passenger train to pass through the target ramp includes: Take each sub-ramp in the target ramp as the target sub-ramp; Based on the speed influencing factors of the passenger train running on the target sub-ramp, determine the second planned running time and the second planned running speed for the passenger train to pass through the target sub-ramp; Based on the second planned running time for the passenger train to pass through each target sub-ramp, determine the first planned running time for the passenger train to pass through the target ramp, and based on the second planned running speed for the passenger train to pass through each target sub-ramp, determine the first planned running speed for the passenger train to pass through the target ramp.

3. The control method for the passenger and freight train to track and run on the slope according to claim 2, wherein, The determination of the first planned running speed for the passenger train to pass through the target ramp based on the second planned running speed for the passenger train to pass through each target sub-ramp includes: Based on the second planned running speed of the passenger train passing through each of the target sub-ramps, the ramp angle of each of the target sub-ramps, and the traction and braking characteristics of the passenger train, determine the average running speed of the passenger train passing through the target ramp, and use the average running speed as the first planned running speed.

4. The control method for the ramp tracking operation of a passenger and freight train according to claim 1, characterized in that, The determination of the minimum ramp leading speed of the preceding freight train being tracked by the passenger train includes: Based on the adjusted third planned running time and the third planned running speed, determine the minimum ramp leading speed of the second preceding freight train; Based on the adjusted first planned running time and the first planned running speed, determine the minimum ramp leading speed of the first preceding freight train.

5. The control method for the passenger and freight train to run in track following on a slope according to claim 1, characterized in that, The adjustment of the first planned running time and the first planned running speed further includes: When it is determined that there is no preceding freight train being tracked by the passenger train on the current target ramp, adjust the first planned running time based on the greedy principle, and adjust the first planned running speed based on the train operation supervision curve corresponding to the passenger train.

6. A control device for the ramp tracking operation of a passenger and freight train, characterized in that, It includes: A first determination module, configured to determine the maximum running time and the minimum running time of the passenger train passing through the target ramp based on the current vehicle speed of the passenger train and a preset ramp control strategy; A second determination module, configured to determine the first planned running time and the first planned running speed of the passenger train passing through the target ramp; An adjustment module, configured to, when it is determined that the first planned running time exceeds the time range formed by the maximum running time and the minimum running time, adjust the first planned running time and the first planned running speed, control the passenger train to run on the target ramp based on the adjusted first planned running time and the first planned running speed, and determine the minimum ramp leading speed of the preceding freight train being tracked by the passenger train, where the minimum ramp leading speed is used to provide a running strategy guidance for the preceding freight train being tracked to run on the target ramp; The adjustment module is specifically configured to determine the traction and braking characteristics, train formation situation, and passing and avoidance plan of the preceding freight train being tracked, where the preceding freight train being tracked includes a first preceding freight train and a second preceding freight train, and the second preceding freight train is the leading train of the first preceding freight train; Based on the traction and braking characteristics, train formation situation, and passing and avoidance plan of the second preceding freight train, adjust the third planned running time and the third planned running speed of the first preceding freight train passing through the target ramp, and determine the time adjustment amount for adjusting the third planned running time and the speed adjustment amount for adjusting the third planned running speed; Based on the time adjustment amount, adjust the first planned running time, and based on the speed adjustment amount, adjust the first planned running speed.

7. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the control method for the ramp tracking operation of the passenger and freight train as described in any one of claims 1 to 5.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method for the ramp tracking operation of the passenger and freight train as described in any one of claims 1 to 5.

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