CN112184060A - Passenger and cargo roll-on-roll-off waiting ferry parking space arrangement-ship stowage intelligent combined scheduling method - Google Patents
Passenger and cargo roll-on-roll-off waiting ferry parking space arrangement-ship stowage intelligent combined scheduling method Download PDFInfo
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Abstract
The invention discloses a passenger and cargo roll-on/roll-off berth arrangement-ship stowage intelligent combined scheduling method, which comprises the following steps: the online ticketing system collects vehicle and ship reservation information and sends the vehicle and ship reservation information to a dispatching center system; the dispatching center system generates a ship pre-stowage scheme corresponding to flights according to vehicle and ship reservation information and information of a field ticketing system and sends the scheme to the terminal system; the dispatching center system analyzes the ship pre-allocation scheme to generate a vehicle boarding scheme and sends the vehicle boarding scheme to the terminal system; the dispatching center system classifies the vehicles in the boarding scheme, generates a berth arrangement scheme of the ferry and sends the berth arrangement scheme to the terminal system; parking the approach vehicle in the corresponding area to be crossed according to the parking space arrangement scheme; and the staff guides to finish the ship stowage by means of a ship stowage scheme, a vehicle boarding scheme and a to-be-ferry parking space arrangement scheme which are displayed by the terminal system. The invention effectively improves the overall management level and the production operation efficiency of the passenger-cargo roll-on/roll-off port.
Description
Technical Field
The invention belongs to the technical field of ship stowage, and particularly relates to an intelligent passenger and cargo roll-on/roll-off ferry parking space arrangement-ship stowage combined scheduling method.
Background
In the prior passenger and cargo roll-on port in China, the ticket selling system, the airport management and the ship stowage operation are mutually independent, the coordinated operation of the ticket selling system, the airport management and the ship stowage operation is maintained by excessively depending on an operation mode based on manual experience, and the overall operation efficiency of the passenger and cargo roll-on port is severely limited. The ticketing system cannot timely and accurately transmit basic information of vehicles and ships to a ferry. The planning of the parking spaces of the ferry is determined by workers according to experience and actual conditions, so that the management is disordered, the efficiency is low, and the phenomena of congestion, vehicle moving and the like frequently occur. The visual degree is not high in the stowage process, intelligent decision is lacked, the boarding sequence of the vehicles in the ferry is controlled completely by workers, the stowage result is not ideal, the parking positions of the vehicles in a cabin need to be adjusted frequently, the stowage efficiency is low, and the stowage quality cannot be guaranteed. Therefore, a new technical scheme for arranging the parking spaces and managing the ship stowage in the ferry is needed to be designed for solving the problem.
Disclosure of Invention
Aiming at the problems in the prior art, the invention designs a passenger and cargo roll-on/roll-off yard parking space arrangement-ship loading intelligent combined scheduling method by utilizing the technologies of mobile communication, Internet of things, information interaction among multiple systems, man-machine information interaction and the like, in order to improve the operation efficiency of the passenger and cargo roll-on/roll-off port, reduce the interference of artificial factors in the whole operation process, realize the dynamic, intelligent and informatization of the passenger and cargo roll-on/roll-off yard management and ship loading, and meet the actual use requirements of the passenger and cargo roll-on/roll-off port.
In order to solve the technical problems, the invention adopts the following technical scheme: a passenger and cargo roll-on/roll-off berth arrangement-ship stowage intelligent combined scheduling method comprises the following steps:
s1, an online ticketing system collects vehicle reservation information and ship information and sends the vehicle reservation information and the ship information to a dispatching center system;
s2, the dispatching center system generates a ship pre-stowage scheme corresponding to flights according to the vehicle reservation information and the ship information and in combination with ticket buying vehicle information provided by the field ticketing system, and sends the scheme to the terminal system;
s3, the dispatching center system analyzes the ship pre-allocation scheme, generates a vehicle boarding scheme and sends the vehicle boarding scheme to the terminal system;
s4, the dispatching center system classifies the vehicles in the boarding scheme, generates a to-be-ferry parking space arrangement scheme and sends the to-be-ferry parking space arrangement scheme to the terminal system;
s5, parking vehicles entering a field in a corresponding region to be covered by referring to a parking space arrangement scheme by means of functions of guidance, broadcasting, monitoring and the like of a terminal system;
and S6, the staff follows a ship stowage heuristic method to guide and complete the ship stowage by means of a ship preallocation scheme, a vehicle boarding scheme and a waiting ferry parking space arrangement scheme which are displayed by the terminal system.
Further, in step S2, the ship pre-allocation plan is generated by the scheduling center system through an intelligent optimization algorithm with the cabin area utilization rate maximized as a target, wherein the scheduling center system generates the ship pre-allocation plan of the corresponding flight through the intelligent optimization algorithm with the cabin area utilization rate maximized as a target by combining the vehicle reservation information and the ship information with the vehicle type, length, width, height and weight information of the ticket-buying vehicle provided by the field ticketing system, and sending the ship pre-allocation plan to the terminal system.
Further, in the step S3, the vehicle boarding scheme is generated by the dispatch center system analyzing the ship pre-stowage scheme through a heuristic optimization algorithm; the vehicles are numbered based on a ship pre-stowage scheme, the vehicle numbers are gradually increased along the direction from the bow to the stern, and gradually increased towards two sides along the middle of the ship or gradually increased towards the middle along two sides of the ship, and finally, the numbers which are gradually increased from small to large are the sequence of the vehicle boarding.
Further, in step S5, the scheduling center system analyzes the ship pre-allocation scheme and the vehicle boarding scheme by a heuristic optimization algorithm to generate the waiting yard parking space arrangement scheme; the method comprises the steps of firstly classifying vehicles in a ship pre-stowage scheme according to trolleys, passenger cars and trucks, then respectively planning parking spaces for the three types of vehicles in respective parking areas according to vehicle numbers based on a vehicle boarding scheme, and preferentially selecting the parking space close to the direction of the ship parking space at the parking position of the vehicle with the smaller number in the parking area of each type of vehicles.
Further, in step S6, the heuristic optimization algorithm method for ship stowage specifically includes the following substeps:
s61, analyzing a ship pre-allocation scheme, a vehicle boarding scheme and a to-be-ferry parking space arrangement scheme;
s62, selecting boarding vehicles according to the boarding sequence;
s63, judging whether conflict vehicles of the selected vehicles exist in the sequence of the vehicles boarding the ferry; if yes, go to step S64; if not, go to step S67;
s64, judging whether the specifications of the conflict vehicle and the selected vehicle are the same; if yes, go to step S65; if not, go to step S66;
s65, exchanging numbers of the selected vehicle and the conflicting vehicle, and executing the step S67;
s66, the conflict vehicle drives into the cache region, waits in the cache region, and then executes the step S62;
s67, boarding in sequence;
s68, judging whether the loading stop condition is met; if yes, go to step S69; if not, go to step S62;
and S69, finishing the loading.
Further, the terminal system comprises a handheld terminal system, a ferry guiding system, a broadcasting system and a monitoring system.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, by designing the passenger-cargo roll-on/roll-off to-ferry parking space arrangement-ship stowage intelligent combined scheduling method, based on information interaction and man-machine information interaction among multiple systems, the passenger-cargo roll-on/roll-off to-ferry parking space arrangement and ship stowage intelligent combined scheduling is realized by utilizing technologies such as mobile communication and Internet of things, dynamic, intelligent and informationized passenger-cargo roll-on/roll-off parking space arrangement and ship stowage are realized, the interference of artificial factors in the whole operation flow is reduced, the phenomena of parking jam, frequent vehicle moving and the like in the passenger-cargo roll-on/roll-off port are reduced, and the whole management level and the production operation efficiency of the passenger-cargo roll-on.
Drawings
FIG. 1 is a schematic view of information interaction of a passenger-cargo rolling and loading berth arrangement-ship loading intelligent combined scheduling method of a passenger-cargo rolling and loading berth yard of the invention;
FIG. 2 is a flow chart of the passenger-cargo roll-on-roll-off ferry parking space arrangement-ship stowage intelligent combined scheduling process;
FIG. 3 is a schematic diagram of two analytic pre-loading schemes for generating a vehicle boarding scheme according to the present invention;
FIG. 4 is a schematic diagram of a passenger-cargo rolling-loading waiting yard parking space arrangement scheme of the invention;
FIG. 5 is a schematic view of a ferry conflict vehicle according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The invention is further explained by combining the attached drawings and the embodiment, and provides an intelligent combined scheduling method for passenger and cargo roll-on/roll-off berth arrangement-ship stowage, which meets the actual use requirement of a passenger and cargo roll-on/roll-off port by utilizing mobile communication, Internet of things, information interaction among multiple systems and man-machine information interaction. The method specifically comprises the following steps:
s1, an online ticketing system collects vehicle reservation information and ship information and sends the vehicle reservation information and the ship information to a dispatching center system;
s2, the dispatching center system generates a ship pre-stowage scheme corresponding to flights according to the vehicle reservation information and the ship information and in combination with ticket buying vehicle information provided by the field ticketing system, and sends the scheme to the terminal system;
s3, the dispatching center system analyzes the ship pre-allocation scheme, generates a vehicle boarding scheme and sends the vehicle boarding scheme to the terminal system;
s4, the dispatching center system classifies the vehicles in the boarding scheme, generates a to-be-ferry parking space arrangement scheme and sends the to-be-ferry parking space arrangement scheme to the terminal system;
s5, parking vehicles entering a field in a corresponding region to be covered by referring to a parking space arrangement scheme by means of functions of guidance, broadcasting, monitoring and the like of a terminal system;
and S6, the staff follows a ship stowage heuristic method to guide and complete the ship stowage by means of a ship preallocation scheme, a vehicle boarding scheme and a waiting ferry parking space arrangement scheme which are displayed by the terminal system.
In the above embodiment, as shown in fig. 1 and fig. 2, an information interaction schematic diagram and a flowchart of an intelligent combined scheduling method of arranging parking spaces in a ferry-to-be-ferry and allocating ships are respectively shown, where when a pre-allocation scheme is generated, a scheduling center system generates a ship pre-allocation scheme for a corresponding flight by performing calculation with the goal of maximizing cabin area utilization rate through an intelligent optimization algorithm according to vehicle reservation information and ship information in combination with information of types, lengths, widths, heights, weights, and the like of ticket-buying vehicles provided by an on-site ticket-selling system, and sends the generated ship pre-allocation scheme to a terminal system. Carrying out loading on the inbound vehicles by adopting a multi-stage visual intelligent loading algorithm based on a user-defined rule, wherein the loading is carried out by two parts, namely, the total loaded weight G and the total loaded area S are both 80% of a rated value, and the proportion of the total loaded weight G or the total loaded area S in the rated value reaches a threshold value Y, the area utilization rate is the maximum, and when the total loaded weight G or the total loaded area S reaches 80% of the rated value, a new rule is added for carrying out loading; and when the time [ T1, TN ] reaches the requirement or the proportion of one of G and S in the rated value reaches a threshold value Y, stopping the load distribution.
The loading method is specifically adopted as follows:
defining part of parameters: htli, HKWi, HKi and HKi represent the length, width, weight and cabin area of the ith ferry truck and passenger car, respectively; xlj, Xwj, Xgj and Xsj respectively represent the length, width, weight and cabin area of the jth ferry vehicle; s represents the total area of the vehicle in the cabin, and the initial load-allocation time value is set to be 0; g represents the vehicle total weight, and the initial load-on value is set to 0; the set of states of the k-th vehicle loaded in the hold is denoted by Ck.
Overall service principle: first come first serve
Step 1: the overall stowage rule is selected, and two choices are available: 1. the stowage is firstly carried on two sides and then in the middle, and on the basis, the bow and the stern are firstly carried; 2. the stowage is firstly carried in the middle and then on the two sides, and on the basis, the bow and the stern are firstly carried; inputting related parameters: the stowage time window [ T1, TN ], the stowage threshold Y (the default value of Y is 90%), the parameters d1 of each safety distance (vehicle-to-vehicle, vehicle-to-bulkhead, vehicle-to-strut, and the like), d2 … dn and the transverse and longitudinal tilting moment thresholds H and Z.
Step 2: the parameters (Hkli, HKWi and HKGi) of the ith ferry truck and passenger car entering the successful ticket check and the parameters (Xlj, Xwj and Xgj) of the jth ferry car are input.
Step 3: for trucks and passenger cars, the vehicle cabin area HKsi is calculated, and for cars, the vehicle cabin area Xsj is calculated.
Step 4: when in stowage, according to the cabin state Ck, if the position is stored, the next position is stored; the aim is to maximize the surface utilization, and in the first stage, when the total loaded weight G and the total loaded area S are both below 80% of the rated value, the following rule is applied: 1. for trucks, trolleys and buses, the factors of difficult access, turning radius, volume and the like are considered, and the trucks, the trolleys and the buses are only longitudinally placed and not transversely placed during stowage; 2. when the vehicle is loaded, the safe distances are kept between vehicles, between the vehicles and the bulkhead, between the vehicles and the strut and the like; 3. by using the gradual addition floating state calculation method for reference, parameters tan theta and tan psi (theta is a transverse inclination angle and psi is a longitudinal inclination angle) after each vehicle is loaded are calculated in a gradual addition mode, and the transverse and longitudinal inclination moment of each vehicle for loading is ensured to be within an allowable moment range. The invention is named as a first-stage passenger-rolling ship stowage rule; and in the second stage, when the total loaded weight G or the total loaded area S reaches 80% of the rated value, adding a new rule to the original rule: 1. judging whether the lengths of the incoming freight cars and the passenger cars meet the requirement of the length of the residual space, and carrying out stowage if the lengths of the incoming freight cars and the passenger cars meet the requirement; if the requirement is not met, the ship does not carry out loading, and the vehicle information is returned to Step 2; 2. for the trolley, the trolley is allowed to be placed longitudinally and transversely when the rule is updated to be stowage, so that the maximum space utilization rate is achieved; the placement rules of the trucks and the passenger cars are unchanged.
The rules and the method for carrying out stowage on the inbound vehicles in the two stages are named as a rule-based multi-stage passenger-rolling ship stowage algorithm.
Step 5: after the vehicle loading is finished, updating the total area S of the cabin occupied by the vehicle to be S + HKsi and the total weight G of the vehicle to be G + HKi for the truck and the passenger car; for the car, the cabin area Xsj is calculated, and the total cabin area S is updated to S + Xsj and the total vehicle weight G to G + Xgj.
Updating cabin stowage state set Ck
Step 6: and (4) terminating the stowage condition: when one of the following conditions is reached, the loading is stopped:
1. the time requirement of a stowage time window [ T1, TN ] is met; 2. the proportion of the loaded gross weight G or the loaded total area S in the rated value reaches a threshold value Y.
After the ship pre-stowage scheme corresponding to the flight is generated, the scheduling center system analyzes the ship pre-stowage scheme through a heuristic optimization algorithm to generate a vehicle boarding scheme, as shown in fig. 3, vehicles are numbered based on the ship pre-stowage scheme, and two numbering modes can be selected: the serial numbers of the vehicles gradually increase along the direction o → x, and gradually increase along the directions o → y and o → -y; the serial number of the vehicle is gradually increased along the direction o → x, and is gradually increased along the direction y → o, -y → o; and finally, generating numbers from small to large, namely the sequence of vehicle boarding, and selecting one vehicle boarding scheme to send to the terminal system. The dispatching center system analyzes the ship pre-allocation scheme and the vehicle boarding scheme through a heuristic optimization algorithm to generate a to-be-ferry parking space arrangement scheme, and as shown in fig. 4, the to-be-ferry parking space arrangement scheme is generated based on the numbering mode in the o-direction, the y-direction and the y-direction in fig. 3: the method comprises the steps of firstly classifying vehicles in a ship pre-allocation scheme according to trolleys, passenger cars and trucks, then respectively planning parking spaces for three types of vehicles in respective parking areas according to vehicle numbers based on a vehicle boarding scheme, gradually increasing the vehicle numbers along the direction O → X, O → Y in the parking areas of all types of vehicles, and finally sending the generated parking space arrangement scheme of the place to be ferred to a terminal system.
In a further preferred embodiment, the ship stowage heuristic optimization algorithm method specifically comprises the following sub-steps:
s61, analyzing a ship pre-allocation scheme, a vehicle boarding scheme and a to-be-ferry parking space arrangement scheme;
s62, selecting boarding vehicles according to the boarding sequence;
s63, judging whether conflict vehicles of the selected vehicles exist in the sequence of the vehicles boarding the ferry; if yes, go to step S64; if not, go to step S67;
s64, judging whether the specifications of the conflict vehicle and the selected vehicle are the same; if yes, go to step S65; if not, go to step S66;
s65, exchanging numbers of the selected vehicle and the conflicting vehicle, and executing the step S67;
s66, the conflict vehicle drives into the cache region, waits in the cache region, and then executes the step S62;
s67, boarding in sequence;
s68, judging whether the loading stop condition is met; if yes, go to step S69; if not, go to step S62;
and S69, finishing the loading.
As shown in fig. 5, a schematic diagram of vehicles waiting for ferry conflict, where the vehicles are conflict vehicles, and because the specifications of the two vehicles are the same, the operator can input an operation instruction to the terminal system during loading to directly exchange the serial numbers of the two vehicles and feed the serial numbers back to the dispatching center system;
the vehicles (c) are conflict vehicles of the vehicle (d), and the specifications of the two vehicles are different, so that the conflict vehicles (c) need to drive into the cache region for waiting when being loaded, and then sequentially board the vehicle (d) from the cache region after the vehicle (d) boards the vehicle.
And (4) supplementary notes: the utilization rate of the area of the cabin for the ship stowage pursuit is maximized, and the ship stowage sequence of two vehicles with the same specification is exchanged in the stowage process, so that the final stowage result of the ship is not influenced.
The foregoing examples are provided for illustration and description of the invention only and are not intended to limit the invention to the scope of the described examples. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, all of which fall within the scope of the invention as claimed.
Claims (6)
1. A passenger and cargo roll-on/roll-off berth arrangement-ship stowage intelligent combined scheduling method is characterized by comprising the following steps:
s1, an online ticketing system collects vehicle reservation information and ship information and sends the vehicle reservation information and the ship information to a dispatching center system;
s2, the dispatching center system generates a ship pre-stowage scheme corresponding to flights according to the vehicle reservation information and the ship information and in combination with ticket buying vehicle information provided by the field ticketing system, and sends the scheme to the terminal system;
s3, the dispatching center system analyzes the ship pre-allocation scheme, generates a vehicle boarding scheme and sends the vehicle boarding scheme to the terminal system;
s4, the dispatching center system classifies the vehicles in the boarding scheme, generates a to-be-ferry parking space arrangement scheme and sends the to-be-ferry parking space arrangement scheme to the terminal system;
s5, parking the vehicles entering the field in the corresponding areas to be crossed by referring to the parking space arrangement scheme by means of the guidance, broadcasting and monitoring functions of the terminal system;
and S6, the staff follows a ship stowage heuristic method to guide and complete the ship stowage by means of a ship preallocation scheme, a vehicle boarding scheme and a waiting ferry parking space arrangement scheme which are displayed by the terminal system.
2. The method as claimed in claim 1, wherein in step S2, the pre-loading scheme is generated by the scheduling center system through an intelligent optimization algorithm with the cabin area utilization rate maximized as a target calculation, wherein the scheduling center system generates the pre-loading scheme of the ship for the corresponding flight through the intelligent optimization algorithm with the cabin area utilization rate maximized as a target calculation according to the vehicle reservation information and the ship information in combination with the model, length, width, height and weight information of the ticket-buying vehicle provided by the field ticketing system, and sends the pre-loading scheme to the terminal system.
3. The passenger-cargo rolling-loading berth arranging-ship stowage intelligent combined scheduling method of claim 1, wherein in the step S3, the vehicle boarding scheme is generated by a scheduling center system analyzing a ship preallocation scheme through a heuristic optimization algorithm; the vehicles are numbered based on a ship pre-stowage scheme, the vehicle numbers are gradually increased along the direction from the bow to the stern, and gradually increased towards two sides along the middle of the ship or gradually increased towards the middle along two sides of the ship, and finally, the numbers which are gradually increased from small to large are the sequence of the vehicle boarding.
4. The method for intelligent combined scheduling of passenger-cargo roll-on-roll off waiting-to-ferry parking space arrangement-ship stowage scheme according to claim 3, wherein in step S5, the waiting-to-ferry parking space arrangement scheme is generated by the scheduling center system analyzing a ship pre-allocation scheme and a vehicle boarding scheme through a heuristic optimization algorithm; the method comprises the steps of firstly classifying vehicles in a ship pre-stowage scheme according to trolleys, passenger cars and trucks, then respectively planning parking spaces for the three types of vehicles in respective parking areas according to vehicle numbers based on a vehicle boarding scheme, and preferentially selecting the parking space close to the direction of the ship parking space at the parking position of the vehicle with the smaller number in the parking area of each type of vehicles.
5. The passenger-cargo rolling-loading berth arranging-ship stowage intelligent combined scheduling method according to claim 3, wherein in the step S6, the ship stowage heuristic optimization algorithm method specifically comprises the following substeps:
s61, analyzing a ship pre-allocation scheme, a vehicle boarding scheme and a to-be-ferry parking space arrangement scheme;
s62, selecting boarding vehicles according to the boarding sequence;
s63, judging whether conflict vehicles of the selected vehicles exist in the sequence of the vehicles boarding the ferry; if yes, go to step S64; if not, go to step S67;
s64, judging whether the specifications of the conflict vehicle and the selected vehicle are the same; if yes, go to step S65; if not, go to step S66;
s65, exchanging numbers of the selected vehicle and the conflicting vehicle, and executing the step S67;
s66, the conflict vehicle drives into the cache region, waits in the cache region, and then executes the step S62;
s67, boarding in sequence;
s68, judging whether the loading stop condition is met; if yes, go to step S69; if not, go to step S62;
and S69, finishing the loading.
6. The method for intelligent combined scheduling of passenger-cargo rolling and loading berths at a place to be ferried and arranging-ship stowage according to claim 1, wherein the terminal system comprises a handheld terminal system, a place to be ferried guiding system, a broadcasting system and a monitoring system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113361884A (en) * | 2021-05-27 | 2021-09-07 | 中科智城(广州)信息科技有限公司 | Integrated platform for scheduling inside and outside port |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113361884A (en) * | 2021-05-27 | 2021-09-07 | 中科智城(广州)信息科技有限公司 | Integrated platform for scheduling inside and outside port |
| CN114970983A (en) * | 2022-05-10 | 2022-08-30 | 武汉理工大学 | Passenger-rolling ship stowage optimization method based on improved LHL algorithm |
| CN115829138A (en) * | 2022-12-13 | 2023-03-21 | 海南海峡航运股份有限公司 | Method for predicting ticket selling quantity by real-time adjustment |
| CN115829138B (en) * | 2022-12-13 | 2023-11-03 | 海南海峡航运股份有限公司 | Method for predicting ticket selling quantity in real time adjustment |
| CN116822755A (en) * | 2023-08-31 | 2023-09-29 | 山东捷瑞数字科技股份有限公司 | Roll-on-roll-off ship vehicle management method, system, device and medium based on digital twin |
| CN116822755B (en) * | 2023-08-31 | 2024-01-02 | 山东捷瑞数字科技股份有限公司 | Roll-on-roll-off ship vehicle management method, system, device and medium based on digital twin |
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