CN111415123A - Cargo accurate loading method and system for multiple loading units on branch cargo aircraft - Google Patents
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Abstract
The invention relates to a cargo accurate loading method of a multi-loading unit on a branch cargo aircraft, which comprises the steps of measuring geometric dimension data and weight data of random cargos, constructing a standardized loading model corresponding to real-time random cargos according to the obtained geometric dimension data and weight data, and storing the standardized loading model of the random cargos to a specified position; generating an original loading model corresponding to the loading unit according to the volume structure of the loading unit, inputting the original loading model to a specified position, and then bringing a standardized loading model of random goods into the original loading model corresponding to the loading unit to carry out loading logic calculation operation; and comparing the volume and the weight of the standardized loading model with the original loading model one by one to generate a corresponding stowage scheme. The invention also relates to a related stowage system. The invention achieves accurate loading of random goods, thereby being widely applied to the technical field of uncertain item multi-target matching control methods.
Description
Technical Field
The invention relates to the technical field of non-deterministic multi-target matching control methods, in particular to a method and a system for accurately loading cargos with multiple loading units on a branch cargo plane, and particularly relates to a logic method for loading non-deterministic random cargos into multiple loading units with multi-target requirements.
Background
Because the concept of the multi-stage air transportation logistics system is just proposed, the current air transportation logistics systems at various stages of trunk lines, branch lines and tail ends have no standardized definition. According to the existing civil aviation system standard, the trunk-level cargo aircraft are wide-body cargo aircraft and narrow-body cargo aircraft of the current civil aviation transportation system, the range of the aircraft is generally hundreds of kilometers to thousands of kilometers, and the single cargo capacity is dozens of tons to hundreds of tons. The tail-end cargo aircraft is a multi-rotor unmanned aircraft for current cargo carrying, the range of the aircraft is generally within 30 kilometers, and the single cargo carrying capacity is within 30 kilograms. The transport distance and the cargo capacity of the branch-level freight aircraft are between a 'trunk line' and a 'tail end' aviation logistics system, the development of different models can be carried out according to specific freight requirements, the branch-level freight aircraft is suitable for aviation logistics transportation from a logistics hub node to a logistics center node in a provincial region, the voyage of the branch-level freight aircraft is generally 500 kilometers, and the single cargo capacity is about 1-5 tons.
At present, a branch-level cargo plane belongs to a blank interval in a three-level aviation logistics system, is still in a starting stage in a global scope, and with the vigorous demand of the aviation logistics market in China and the gradual refinement of the industry, the research and development of China in the field are faster. In 10 months in 2017, a branch-level freight unmanned aerial vehicle AT200 developed by the department of engineering thermal and physical research of Chinese academy of sciences and the Langxing unmanned aerial vehicle company as a general unit and the units of aviation industry 618 institute, middle electric 54 institute, aerospace 773 institute, West industry university and the like is combined to complete first flight. The effective load of the machine reaches 1.5 tons, the total length is 11.84 meters, the wingspan is 12.80 meters, the height is 4.04 meters, and the volume of the cargo hold is 10 cubic meters. The unmanned aerial vehicle can efficiently finish point-to-point freight branch transport service, and is a global first-money tonnage-level branch-level freight unmanned aerial vehicle.
At present, a branch-line-level cargo unmanned aerial vehicle in research and development mainly performs flight performance test flight of an air vehicle, and does not perform flight tests under cargo loading conditions, and the unmanned aerial vehicle can reach airworthiness certification standards after a series of flight tests of different cargo loading capacity, multiple complex flight environments, different take-off and landing conditions and the like are performed, so that the unmanned aerial vehicle can be really served in the aviation logistics industry of China. For the existing branch-line-level manned machine, the unmanned aerial vehicle is mainly used in the fields of manned, surveying, aerial photography, agriculture and forestry plant protection and the like, rarely relates to a cargo loading process, and adopts a manual loading mode due to the fact that the cargo loading capacity is small even if the cargo loading process exists. Therefore, no matter whether the branch-level freight unmanned aerial vehicle is under development or the mature branch-level unmanned aerial vehicle is adopted, the efficient cargo loading scheme applied to the logistics industry is not available at present.
With the diversified development of the aviation logistics demand, the gradual improvement of a three-level intelligent aviation logistics system of 'trunk-branch-tail' gradually makes the 'branch' aviation logistics transportation relatively blank become a hot spot of technical and market research. The problem of cargo loading efficiency is one of the core technical indexes influencing the development of the branch cargo aircraft, and the improvement of the index can not only improve the operation efficiency of the branch cargo aircraft in an airport working interval in an aviation logistics system, but also improve the cargo transport professional capacity of the airport. At present, the technology of an industrial grade branch line freight airplane applied to the logistics industry in the civil field is still in the research, development and starting stage, the matched efficient cargo loading technology is in the germination stage, and the rapid research and development of the innovative technology is urgently needed.
The cabin structure of the conventional main-line cargo aircraft is large, the change range of the gravity center of the aircraft is small in the cargo loading process, the cargo loading technical problem is only considered by the container Unit, the association with the cabin structure is small, but the cabin structure of the branch-line cargo aircraft is much smaller, the cargo aircraft belongs to an ultra-narrow cabin structure, the gravity center change rule in the loading process is obviously different from that of the main-line cargo aircraft, in order to meet the overall counterweight requirement of the aircraft, the counterweight of each container Unit is distributed according to the overall counterweight, the counterweight mass is different, the weight and the volume of the cargo are different, and the standard loading problem of the random cargo belongs to the logic algorithm of realizing the accurate counterweight of the random cargo into the container units with different mass and volume requirements.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the accurate cargo loading method for the multiple loading units on the branch cargo aircraft comprises the following steps of:
measuring geometric dimension data and weight data of random cargos, constructing a standardized loading model corresponding to the real-time random cargos according to the obtained geometric dimension data and weight data, and storing the standardized loading model of the random cargos to a specified position;
generating an original loading model corresponding to the loading unit according to the volume structure of the loading unit, inputting the original loading model to a specified position, and then bringing a standardized loading model of random goods into the original loading model corresponding to the loading unit to carry out loading logic calculation operation;
and comparing the volume and the weight of the standardized loading model with the original loading model one by one to generate a corresponding stowage scheme.
Further, when the standardized loading model is compared with the original stowage model, the method comprises the following substeps:
1) when the standardized loading model does not exceed the counterweight standard of the original loading model, sequentially loading the next standardized loading model;
2) if the weight exceeds the standard and the volume does not exceed the standard after comparison, carrying out overweight logic calculation to generate a cargo loading scheme of the loading unit;
3) if the weight and the volume do not exceed the standard after comparison, performing over-volume logic calculation to generate a cargo loading scheme, and entering the next loading unit loading scheme for simulation;
4) if the weight and the volume exceed the standard after comparison, firstly, running overweight logic calculation, removing the lightest and overloaded cargo model, then carrying out the overweight logic calculation, generating a cargo loading scheme of the loading unit through repeated iterative calculation of gradually shifting out the 'minimum density loaded cargo model' until the overweight and the volume do not exceed the standard, and then entering the loading scheme simulation of the next loading unit until the overweight and the volume are completely finished.
Further, when the volume of the standardized loading model exceeds the standard, the standardized model density of the loaded goods is calculated, the loaded goods model with the minimum density is moved out, then the model is fed back to the calculation step of the random goods standardized loading model, the next standardized goods model is loaded in sequence, and the stowage calculation is carried out.
Furthermore, the loading standard of the loading unit is determined according to the overall structure, the wing structure, the opening mode of the cabin door, the number of the loading units and the overall gravity center balance requirement of the branch cargo aircraft.
The invention also provides a technical scheme that:
the cargo accurate loading system of the multi-loading unit on the branch cargo aircraft is executed according to the accurate loading method and comprises a random cargo measuring module, a data storage module, a model establishing module, a centralized control module, an operation calculating module and a power supply module, wherein the random cargo measuring module, the data storage module, the model establishing module, the centralized control module and the operation calculating module are arranged on the branch cargo aircraft,
the random measuring module is used for measuring the geometric dimension and the weight of random goods and transmitting the obtained geometric dimension data and the weight data to the data storage module for storage, and the data storage module is respectively and electrically connected with the centralized control module, the random goods measuring module and the model establishing module;
the model building module is used for building a standardized loading model according to the geometric dimension and weight data of random cargos and building an original loading model according to the structure and the volume of a loading unit; the data storage module is used for storing the geometric dimension and weight data of random cargos and storing a standardized loading model and an original stowage model;
the centralized control module is used for bringing the standardized loading model into the original loading model for simulation after receiving the standardized loading model and the original stowage model;
the operation calculation module is electrically connected with the centralized control module, calculates the weight and the volume of the standardized loading model and the original stowage model, obtains calculation data, and transmits the calculation data to the centralized control module for realizing comparison of the models so as to generate a stowage scheme;
the power supply module is used for supplying power to the random cargo measuring module, the data storage module, the model establishing module, the centralized control module and the operation calculating module.
Further, the random cargo measuring module comprises a three-dimensional size scanner and an electronic scale which are connected in parallel; the data storage module comprises a hard disk memory or a computer client; the model building module comprises three-dimensional model building software, and the three-dimensional model building software comprises CATIA software for engineering.
After the structure and the stowage method are adopted, the invention has the following advantages:
1) at present, an accurate loading method for random goods with multiple loading units of a branch goods machine does not exist, the invention provides an intelligent demand loading logic calculation method which is in line with industrial specifications, safe, reliable, efficient, rapid and high in specialization degree from the random goods to standardized loading units, is particularly suitable for a branch logistics transportation system in a three-level aviation logistics system of trunk line-branch line-tail end, can greatly improve the loading efficiency of the goods of the branch goods machine, and improves the professional freight capacity of an airport;
2) the technical method can realize the accurate standardized stowage process of random goods with non-definite items;
3) the technical method and the system can carry out scientific and accurate loading on a plurality of different loading units, and each loading unit is provided with a plurality of loading targets;
4) the logical operation of the technical method takes the counterweight standard as a judgment core, ensures the strict counterweight requirement of each loading unit, and ensures the gravity center balance in the loading process of the branch cargo aircraft.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the present invention;
fig. 2 is a schematic diagram of a connection relationship between modules in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1 and 2, a method for accurately loading goods with multiple loading units on a branch cargo aircraft is provided, wherein the goods are random goods with random volume and weight, and the loading units are a plurality of loading regions divided in a cabin of the branch cargo aircraft; firstly, a random cargo measuring system measures size data and weight data of random cargos, a centralized control system constructs a real-time random cargo standardized loading model according to the measured size data and weight data, and the generated random cargo standardized loading model is simulated one by one in the centralized control system and loaded into an original stowage model of a loading unit.
When the standardized loading model corresponding to the random goods is incorporated into the original stowage model corresponding to the loading unit, the method comprises the following operation steps:
1) in the simulation loading process, after each random cargo standardized model is loaded, firstly, synchronously judging whether the balance weight standard and the volume standard of the loading unit are exceeded or not, and if the feedback information is negative, sequentially loading the next random cargo standardized loading model;
2) if the calculation step feedback information of the 'exceeding of the counterweight standard' is yes and the calculation step feedback information of the 'exceeding of the volume standard' is no, entering an 'overweight calculation step' for logic calculation to generate a cargo loading scheme of the loading unit;
3) if the feedback information of the calculation step of the 'exceeding volume standard' is yes and the feedback information of the calculation step of the 'exceeding weight standard' is no, the 'exceeding volume calculation step' is carried out to carry out logic calculation, a cargo loading scheme is finally generated, and the next cargo compartment loading scheme simulation process is carried out;
4) if the feedback information of the calculation step of the 'excess volume standard' and the 'excess counterweight standard' is the 'yes', the 'overweight calculation step' is preferentially carried out for logic calculation, the 'excess volume standard' calculation step is carried out after the lightest overloaded cargo model is removed, if the feedback information is the 'yes', the 'excess volume calculation step' is carried out for logic calculation, repeated iterative calculation is carried out by gradually moving out the 'minimum density loaded cargo model', until the feedback information of the 'excess counterweight standard' is the 'yes' and the 'excess volume standard' feedback information is the 'no', a cargo stowage scheme of the loading unit is generated according to logic calculation, then the next cargo stowage scheme simulation process is carried out, and the final overall stowage scheme of the multi-loading unit cargos is generated after all the stowage units are fully stowed.
In the process, the calculation logic of the overweight calculation step is to calculate the overload weight preferentially, then compare the overload weight with the model weight of the loaded goods, and generate a goods loading scheme after moving out the lightest overload goods model; the calculation logic of the 'over-volume calculation step' is to calculate the model density of the loaded goods preferentially, then move out the loaded goods model with the minimum density, then feed back to the 'random goods standardized loading model' calculation step, load the next standardized goods model in sequence and carry out stowage calculation; in the centralized control system, data of each loading unit is stored before loading, and the data comprises parameters such as counterweight standard, volume structure and the like of each loading unit.
The counterweight standard of each loading unit is comprehensively calculated by the quantity, the structure, the loading position and the integral balance of the gravity center of the branch cargo aircraft, and the counterweight standard is strictly observed. Specifically, the loading standard of each loading unit volume is formulated by the overall structure of the branch cargo aircraft, the wing structure, the opening mode of the cabin door, the number of the loading units and the overall gravity center balance of the branch cargo aircraft.
In the invention, the whole operation process takes the weight standard as a judgment core, namely, the whole operation process must be finished by an overweight calculation step finally and a cargo loading scheme of the loading unit is generated. The random goods standardized loading model is a minimum cubic loading model which has the actual weight of goods and can cover the complete volume of a goods structure. The loading unit original loading model is a standard cubic loading model with fixed counterweights.
And after the loading unit cargo loading scheme is generated, the standardized cargo loading models in the database enter the simulation loading process of the next loading unit in sequence.
In particular, the present invention is implemented using the following system.
A cargo accurate loading system with a plurality of loading units on a branch cargo aircraft comprises a random cargo measuring module, a data storage module, a model establishing module, a centralized control module, an operation calculating module and a power supply module, wherein,
the random measuring module is used for measuring the geometric dimension and the weight of random goods and transmitting the obtained geometric dimension data and the weight data to the data storage module for storage, and the data storage module is respectively electrically connected with the centralized control module, the random goods measuring module and the model establishing module;
the model building module is used for building a standardized loading model according to the geometric dimension and weight data of random cargos and building an original loading model according to the structure and the volume of a loading unit; the data storage module is used for storing the geometric dimension and weight data of random cargos and storing a standardized loading model and an original stowage model;
the centralized control module is used for bringing the standardized loading model into the original loading model for simulation after receiving the standardized loading model and the original loading model;
the operation calculation module is electrically connected with the centralized control module, calculates the weight and the volume of the standardized loading model and the original stowage model, obtains calculation data and transmits the calculation data to the centralized control module for realizing comparison of the models so as to generate a stowage scheme;
the power supply module is used for supplying power to the random cargo measuring module, the data storage module, the model establishing module, the centralized control module and the operation calculating module.
The random cargo measuring module comprises a three-dimensional size scanner and an electronic scale which are connected in parallel; the data storage module comprises a hard disk memory or a computer client; the model building module comprises three-dimensional model building software, and the three-dimensional model building software comprises engineering CATIA software.
The invention provides a cargo accurate loading method of a multi-loading unit on a branch cargo aircraft. According to the technical method, the loading scheme of each loading unit is generated successively through counterweight standard judgment and volume standard judgment according to the generated random cargo standard loading model and the original loading models of the loading units divided in the cabin of the branch cargo aircraft, and the control module controls the corresponding mechanical structure through the loading scheme, so that intelligent demand loading of random cargoes to the standardized loading units is realized.
Claims (6)
1. The precise cargo loading method for the multiple loading units on the branch cargo aircraft is characterized by comprising the following steps of:
measuring geometric dimension data and weight data of random cargos, constructing a standardized loading model corresponding to the real-time random cargos according to the obtained geometric dimension data and weight data, and storing the standardized loading model of the random cargos to a specified position;
generating an original loading model corresponding to the loading unit according to the volume structure of the loading unit, inputting the original loading model to a specified position, and then bringing a standardized loading model of random goods into the original loading model corresponding to the loading unit to carry out loading logic calculation operation;
and comparing the volume and the weight of the standardized loading model with the original loading model one by one to generate a corresponding stowage scheme.
2. The method for accurately loading the goods with the multiple loading units on the branch goods machine as claimed in claim 1, wherein when the standardized loading model is aligned with the original loading model, the method comprises the following sub-steps:
1) when the standardized loading model does not exceed the counterweight standard of the original loading model, sequentially loading the next standardized loading model;
2) if the weight exceeds the standard and the volume does not exceed the standard after comparison, carrying out overweight logic calculation to generate a cargo loading scheme of the loading unit;
3) if the weight and the volume do not exceed the standard after comparison, performing over-volume logic calculation to generate a cargo loading scheme, and entering the next loading unit loading scheme for simulation;
4) if the weight and the volume exceed the standard after comparison, firstly, running overweight logic calculation, removing the lightest and overloaded cargo model, then carrying out the overweight logic calculation, generating a cargo loading scheme of the loading unit through repeated iterative calculation of gradually shifting out the 'minimum density loaded cargo model' until the overweight and the volume do not exceed the standard, and then entering the loading scheme simulation of the next loading unit until the overweight and the volume are completely finished.
3. The method as claimed in claim 2, wherein when the standardized loading model volume exceeds the standard, the standardized model density of the loaded goods is calculated, the loaded goods model with the minimum density is moved out, and then the calculated density is fed back to the step of calculating the standardized loading model of random goods, and the next standardized goods model is loaded in sequence for the loading calculation.
4. The method as claimed in claim 1, wherein the loading criteria of the loading units is determined according to the overall structure, wing structure, hatch opening mode, loading unit number and overall center of gravity balance requirement of the branch cargo aircraft.
5. The cargo precise loading system of the multi-loading unit on the branch cargo aircraft is characterized in that the loading system is executed according to the precise loading method of claim 1 and comprises a random cargo measuring module, a data storage module, a model establishing module, a centralized control module, an operation calculation module and a power supply module, wherein,
the random measuring module is used for measuring the geometric dimension and the weight of random goods and transmitting the obtained geometric dimension data and the weight data to the data storage module for storage, and the data storage module is respectively electrically connected with the centralized control module, the random goods measuring module and the model establishing module;
the model building module is used for building a standardized loading model according to the geometric dimension and weight data of random cargos and building an original loading model according to the structure and the volume of a loading unit; the data storage module is used for storing the geometric dimension and weight data of random cargos and storing a standardized loading model and an original stowage model;
the centralized control module is used for bringing the standardized loading model into the original loading model for simulation after receiving the standardized loading model and the original stowage model;
the operation calculation module is electrically connected with the centralized control module, calculates the weight and the volume of the standardized loading model and the original stowage model, obtains calculation data, and transmits the calculation data to the centralized control module for realizing comparison of the models so as to generate a stowage scheme;
the power supply module is used for supplying power to the random cargo measuring module, the data storage module, the model establishing module, the centralized control module and the operation calculating module.
6. The system for accurately loading the cargo of the multi-loading unit on the branch cargo aircraft as claimed in claim 5, wherein the random cargo measuring module comprises a three-dimensional size scanner and an electronic scale connected in parallel; the data storage module comprises a hard disk memory or a computer client; the model building module comprises three-dimensional model building software, and the three-dimensional model building software comprises engineering CATIA software.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112184121A (en) * | 2020-10-12 | 2021-01-05 | 中国民航信息网络股份有限公司 | Method and device for generating loading scheme of aircraft cargo compartment and electronic equipment |
| CN113627795A (en) * | 2021-08-12 | 2021-11-09 | 深圳市全景世纪科技有限公司 | Method, system and device for merging multiple packages and realizing density balance sorting and storage medium |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112184121A (en) * | 2020-10-12 | 2021-01-05 | 中国民航信息网络股份有限公司 | Method and device for generating loading scheme of aircraft cargo compartment and electronic equipment |
| CN113627795A (en) * | 2021-08-12 | 2021-11-09 | 深圳市全景世纪科技有限公司 | Method, system and device for merging multiple packages and realizing density balance sorting and storage medium |
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