CN108171405B - Method for manufacturing standardized automatic evaluation question card for driver's cab resource management practice - Google Patents
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Abstract
The invention discloses a method for manufacturing a standardized practical automatic evaluation question card for resource management of a driving platform, which standardizes the standard of setting training evaluation scenes by a coach at the current stage of the driving platform and can automatically modify the navigation environment of a simulated main ship and the state of a simulated target ship; the key point of the invention is that the complete training examination process is divided into six ship operation stages of anchoring operation, poor visibility, ship communication, ship collision avoidance, accidental events and emergency, and operation by means of berthing according to a training assessment outline, and the 6 operation stages are respectively subjected to time/space range division, mode recognition, scenario generation function compiling, assessment index system establishment and stage weight setting operation; the invention has good universality and realizes the electronic automatic evaluation of ship control, collision avoidance and practical operation of navigation platform resource management by a crew in the environment set by the marine simulator.
Description
Technical Field
The invention belongs to the field of automatic training and evaluation of the aptitude of crewman, in particular to a method for manufacturing a standardized practical operation automatic evaluation question card for the resource management of a driving platform;
background
The assessment of the training of the crew aptitude is an approved assessment mode for the quality of the business ability of the crew, the management and assessment of the driving platform resource is one of subjects of the assessment of the crew aptitude, and the standardization and the automation of the setting of the training assessment problem card belong to the research focus and the research frontier in the field of the training of the crew all the time;
at present, the practical operation evaluation of the resource management of the driving platform is carried out in a training environment manually set by an aeronautical simulator, and the arrangement of the evaluation question card at the present stage adopts a manual conversion mode of a paper question card; in the operation of a specific crew assessment test, an assessment coach must continuously modify the state parameters of a simulated target ship and the environmental elements of a simulated main ship according to the requirements of a paper question sheet, the performance of the crew is very susceptible to the personal experience and subjective judgment of the assessment coach, the change randomness of the question sheet is high, a large amount of physical energy of the coach must be consumed, the difference of crew assessment standards is caused, and the unification of the assessment standards cannot be realized; at present, relevant research of assessment automation of the aptitude of crews mainly focuses on establishment of assessment models of well-divided assessment stages, mutual connection and coupling of the assessment stages are not effectively solved, and the assessment models cannot be well applied to specific practices;
the training and evaluation of the navigation simulator have produced a plurality of excellent evaluation theoretical achievements after years of development; most theoretical achievements cannot be complained in practice at the present stage, on one hand, most evaluation methods adopt advanced theories, algorithms are complex and are difficult to apply to practice in a manual evaluation mode, and on the other hand, a distance exists between the theoretical algorithms and the practice application, so that the industrialization process of the theoretical achievements is slow; a complex algorithm for integrating theoretical evaluation is automatically evaluated by a computer, and a bridge is erected on the basis of theoretical research and practical application;
disclosure of Invention
In order to solve the problems of inconsistent evaluation standards, random scene setting and accidental intervention of a console coach in the process of setting a console resource management evaluation question card at the present stage, the invention designs a manufacturing method of a standardized console resource management practical operation automatic evaluation question card; the invention can automatically modify the state parameters of the simulated target ship and the water area environment elements where the simulated host ship is positioned in the training and evaluation process of the crew:
the invention comprises the following steps:
1) preparing a question card, comprising: the applicable objects of the question cards are captain, major, two or three, the crew service abilities of different positions are different, and the assessment standards and evaluation bases are also different; according to the requirements of the training and evaluation outline of the marine vessel crew, the captain needs to master comprehensive skill knowledge in the resource management subject of the driving platform;
2) making an assessment task: making an examination task of the question card according to the training assessment outline for examination; such as: the training object is a large pair of captain in an infinite navigational area, and the coastal range of China can be selected as a training water area; the evaluation of the Shanghai area can select a ship operation task that the anchoring land of the Yangtze river mouth is anchored and sails to the outer high bridge to be berthed through the deepwater channel of the north slot of the Yangtze river;
3) stage division: performing evaluation stage division on the electronic chart according to the assessment task, and determining the number of the evaluation stage division, and the time and space range of each stage; the major deputy of the captain serves as a deck management-level crew, and the assessment items made by the existing cockpit resource management assessment outline are mainly effective coordination and comprehensive application of ship resources on the basis of ship manipulation skill application and collision avoidance rule understanding, in particular emergency operation of emergency events; the method comprises the following steps of dividing a navigation section from a deep water navigation channel of a north slot of a long estuary to an outer high bridge according to a space range, taking an anchor area as an anchor-lifting operation area, taking a navigation channel area as a navigation stage area, taking a traffic flow dense area as a collision-prevention stage area, selecting a part of the navigation channel area to change the visibility of a training main ship by setting fog concentration on a navigation simulator, taking the navigation channel area as a poor visibility stage, selecting a range of the navigation channel area to set accidental and emergency events of the training main ship on the navigation simulator, and taking the navigation channel area as an accidental event emergency operation stage, wherein the accidental and emergency event settings include but are not limited to: the method comprises the following steps that a main engine fails, a steering engine fails, a compass fails, a ship fire disaster, a ship spills oil and personnel fall into water, berthing operation is needed when a training main ship sails near a berth of an outer high-rise bridge port, the region can be divided into berthing operation stages, and the whole region can be divided into ship communication stages when the training main ship sails in the whole sailing task, considering that all personnel in a driving station team need to communicate with a traffic management center (VTS) and other target ships;
if the division is completed, entering the next step, and returning to the previous step again if the division is not completed;
4) establishing an evaluation model: further refining each divided stage, determining an evaluation module, an evaluation index system and an evaluation model method of each stage, compiling a target ship state modification function and setting parameters of a navigation environment; if each stage is divided in a space range, taking a stage with poor visibility as an example, when the longitude and latitude of a training main ship belong to the space range with poor visibility, a fog concentration setting function is triggered, the fog concentration setting function increases and adjusts fog concentration when the training main ship just enters the space range with poor visibility, the fog concentration function resolves the fog concentration to restore the visibility to normal when the training main ship exits the space range with poor visibility, and the fog concentration function modifies the fog concentration according to the relative position between the training main ship and the space range of the visibility stage; the evaluation training main ship is divided into subjective factors and objective factors according to the influence factors of the operation condition in the fog navigation stage, wherein: the method comprises the following steps that the number type of a signal lamp is set, a siren switch is set, the side distance between a ship and a navigation channel, the offset distance between a ship position and a planned route and the timing time of the ship course belong to objective influence factors, the quality of the ship position and the planned route can be judged by using a method for comparing an operation value with a standard value, the timeliness of the operation performance and the lookout communication of a crew belongs to subjective influence factors, and a fuzzy evaluation method is required to be used for judgment; the final operation result of the fog navigation stage needs to be summarized from the evaluation results of the objective influence factors and the subjective influence factors, as shown in the following formula
Wherein, the weight (obweight) of the objective influence factors and the weight (subwaigh) of the subjective influence factors are determined according to an empirical method and an expert survey method, m objective influence factors and n subjective influence factors are determined, obweight (i) represents the weight of the ith objective influence factor, and subwaigh (j) represents the weight of the jth subjective influence factor; the obresult (i) and the subresult (j) respectively represent the evaluation result of the corresponding ith objective influence factor and the evaluation result of the jth subjective influence factor; i belongs to [1, m ], j belongs to [1, n ];
5) summarizing and sorting the divided evaluation results of six stages, determining the proportion of the evaluation result of each stage in the whole evaluation, namely the weight according to a practical experience method and an expert survey method, and ensuring the normalization processing of the weight, as shown in the following formula
6) according to
Finding a final evaluation result, wherein R (i) represents the evaluation result of the ith stage, and Weigh (i) represents the weight of the ith stage;
7) storing the question cards;
8) finishing the production of the question card;
fine adjustment is carried out on stage modification, such as mode modification, range modification and weight modification;
if the modification is completed, the next step is carried out, and if the modification is not completed, the previous step is returned;
the set evaluation question card is loaded by a trainer control console unit of the navigation simulator and used for training and evaluating the crew;
the set evaluation problem cards can be repeatedly loaded in a trainer console unit of the seagoing simulator and repeatedly applied to trainman training evaluation for many times;
has the advantages that: the navigation simulator is not limited to the navigation simulator developed by a certain equipment manufacturer, the set question cards have universality, and the set question cards can be used for the navigation simulator meeting the relevant standard specification of IMO (inertial measurement of input and output); the problem card arranged by the invention can be conveniently used for training and evaluation of navigation simulator control, collision avoidance and driver's station resource management;
drawings
FIG. 1 is a block flow diagram of the present invention;
FIG. 2 is a logic relationship diagram of stage division according to time and space range in the process of producing question cards;
FIG. 3 is an automated generation of a scenario during a bad visibility fog voyage phase;
FIG. 4 is a possible intersection region between the fog navigation stage and the collision avoidance stage;
FIG. 5 is a general flow of crew assessment using a question card;
FIG. 6 is a functional curve of an evaluation method for comparing an operation value with a standard value;
Detailed Description
In order to better explain the technical scheme of the invention, the following is further described in detail by combining the attached drawings and examples;
the key of the question card setting is that a complete training examination process is divided into six ship operation stages of anchoring operation, poor visibility, ship communication, ship collision avoidance, accidental events and emergency, and berthing operation by referring to a training assessment outline, and time/space range division, mode identification, scenario generation function compiling, evaluation index system establishment and stage weight setting operation are respectively completed for each stage; aiming at each evaluation index, an evaluation method for comparing an actual operation value with an ideal value is provided, and a reasonable operation value interval of the evaluation index is provided; the final evaluation operation of the question card is that on the basis of summarizing modules in all stages, the weight of the modules in all stages is used for establishing an evaluation function relationship, and an evaluation result value is given;
as shown in the manufacturing process of the question card in fig. 1, in the stage division process, whether the manufacturing process of the question card enters the stage modification process is determined by using the condition whether the division is completed or not; defining 6 ship operation stages, namely dividing the 6 stages one by one, wherein the next stage division after the ith stage division is finished is represented by i + +, and the value range of i is [1,6 ]; similarly, the modification of the next stage after the modification of the jth stage is completed is represented by j + +, and since the divided 6 stages do not all need to be modified, the value range of j is [0,6 ];
1) preparation of a question card: corresponding preparation work is needed when the evaluation question card is made, and the preparation work comprises the following steps: the applicable objects of the question cards are captain, major, two or three, the crew service abilities of different positions are different, and the assessment standards and evaluation bases are also different; according to the requirements of the training and evaluation outline of the marine vessel crew, the captain needs to master comprehensive skill knowledge in the resource management subject of the driving platform;
2) making an assessment task: after the preparation work is finished, an examination task of the question card needs to be formulated, taking the applicable object of the question card as the captain as an example, and the navigation task is a process of operating a duty team to take the ship from an anchoring place into a port until the ship is berthed or operating the ship to leave and run out of the port until the ship is anchored under the leadership of the captain; in the ship control process, a driving duty team needs to complete route planning, anchor starting, normal driving of a channel, poor visibility operation, ship collision avoidance and communication, emergency event handling and berthing operation;
3) stage division: after a good navigation task is defined, the whole ship control process can be divided into 6 stages (anchoring operation, poor visibility, ship communication, ship collision avoidance, accidental events, emergency and berthing operation), and each stage needs to be independently set and divided; before training and evaluation are started, grouping is carried out according to the ship-in duty of the training trainees; the balanced distribution of the jobs of a group of trainees is ensured, and the trainees can play roles of captain, major, minor and three roles according to the requirement of promoting job positions; different duties are completed according to different job requirements in the training process, each student can be guaranteed to be fully trained, and meanwhile team cooperation of students with different jobs can be considered; the problem card setting of training evaluation takes the captain/major as the same problem card, and proper adjustment is made according to STCW convention and Chinese seagoing crew training regulations; two pairs/three pairs are the same problem card, and proper adjustment is made according to STCW and Chinese seagoing crew training rules; taking a ship emergency disposal stage as an example, firstly determining an influence factor index system for evaluating whether emergency disposal is reasonable or not, wherein each influence factor needs to be set with proper weight, and further constructing an evaluation model; then, the range division is carried out on the emergency handling stage, which can be the division of a time range or a space range, so as to determine whether the host fault, the steering engine fault, the oil spill, the personnel falling into water and the fire accident situation can occur in the simulation main ship when the ship sails to a certain time period or space period; then, the proportion of the business capacity expressed in the emergency handling by the duty team in the 6 integral stages needs to be determined, and the proportion is expressed by stage weight;
4) stage modification: by analogy, after the division of the 6 stages is completed, the divided 6 stages may need to be finely modified one by one; the specific modifications include: mode modification, range modification, and weight modification;
5) after the modification is completed, the weights of the 6 stages need to be normalized, and the commonly used normalization process is shown as the following formula
weight (i) represents the weight of the ith stage, and weight' (i) represents the weight of the normalized ith stage, wherein i is an integer in the range of [1,6 ];
6) after the error is determined, the operation of saving follows;
7) after the question cards are stored, the question card making is also completed immediately;
the manufacturing idea of the question card is as follows: the core of the automatic evaluation question card is the division of each stage, such as the process division internal logic coordination shown in fig. 2; the position coordinates or time schedule of the simulated ship can be selected to control the process of the question card, and the key of the automatic question card making is to reasonably divide the stage range by referring to the longitude and latitude of the sea chart and the speed of the simulated ship;
as shown in fig. 2, the whole training task of the training host vessel is divided into three stages of anchor taking, sailing and berthing at the first level according to the spatial range, and divided into four stages of poor visibility, vessel passing, vessel avoiding and vessel emergency (contingency event emergency) at the second level by taking the sailing stage as an example;
setting of training process scenario: the greatest embodiment of the evaluation subject card automation is that the intervention of a coach at a control console is reduced in the navigation process of the ship, and as shown in fig. 3, the automatic generation setting of the training scene is described by taking a foggy navigation stage with poor visibility as an example; selecting a spatial position as a progress scale, wherein the simulated main ship is OS1, the simulated target ship is TS, the OS1 enters a fog navigation stage when driving to a point A, the OS1 leaves the fog navigation stage when driving to a point B, and the OS1 is in the fog navigation stage in the process of navigating from the point A to the point B; therefore, a reasonable fog concentration control function needs to be written, the fog begins to appear when the OS1 is located at the point A, the fog concentration becomes light when the OS1 is located at the point B, and the process that the OS1 of the main ship undergoes the fog concentration from light to thick to light is simulated between the point A and the point B; meanwhile, in order to ensure a certain traffic density, a reasonable target ship state modification function can be compiled, so that the number of simulated target ships TS which are navigated by the simulated main ship OS1 in the AB section is kept at a certain value; assuming that the number of simulated target ships encountered by a training main ship in a poor visibility stage range is n, the visual range of the training main ship is d, the observation range of a current radar of the training main ship is dr, the observation range of a current electronic chart of the training main ship is de, the maximum value maxD (d, dr, de) among d, dr and de is calculated, and when an OS1 enters the poor visibility stage range, an initialized n item target ship Ts (n) starts to move according to the current course and speed, and the OS1 and the AB can change positions in the poor visibility stage space range along with the relative movement of the OS1 and the AB; when the position of the training main ship still belongs to the space range, if the ith entry tender ts (i) drives out of the space range, the position of ts (i) is reset, and the relative position of the target ship:
Pos_Ts(i)＝(maxD*cosf(θ)，maxD*sinf(θ))
wherein θ represents the relative azimuth angle between the target ship ts (i) and the training main ship, θ takes a value range of [0, 2 × PI ], θ can be obtained by using a random function, and rnad () is a random number generation function, and the value range of θ is [0, 1 ]; considering the coordinate transformation, if the absolute position of the training host vessel OS1 on the chart is Pos _ OS1 ═ x, y, the position of the ith entry seakeeping that needs to be reset is
Pos_Ts(i)＝(x，y)+(maxD*cosf(θ)，maxD*sinf(θ))，
x is the ship position horizontal coordinate value, y is the ship position vertical coordinate value, and (x, y) the common longitude and latitude values;
due to different spatial ranges, the number n of target ships, the visible distance d of the main ship, the observation range dr of the radar and the observation range de of the electronic chart in each stage are changed, so that the position Pos _ Ts of the target ships can be obtained according to the following formula, wherein Pos _ Ts is (Pos _ Ts (1), Pos _ Ts (2),... multidot.ts (n));
intersection region of each phase range: the reasonable division of the range of each stage influences the setting of the automatic evaluation question cards, in the process of dividing the range, an intersection region is likely to exist between a certain stage and other stages, and a reasonable weight coefficient is required to be adopted to set a contextual model in the intersection region according to the applicable object of the question cards and the requirements of the evaluation outline;
as shown in fig. 4, there is a shadow intersection region in the fog navigation stage and the collision avoidance stage, if the evaluation object is a great deputy captain, according to the requirements of the existing training and evaluation outline of marine crews, the on-duty training team needs to perform operations of turning on the signals and the signals under the condition of poor visibility, communication coordination with the target ship, and control the main ship within a reasonable speed range, and the main purposes of the operations are to ensure the safe navigation of the training main ship and to be consistent with the training purpose in the collision avoidance stage; therefore, the initial setting of the shadow area is as follows
Initia＝Weigh(fog)*Initia(fog)+Weigh(anti)*Initia(anti)
Carrying out the following steps; wherein, initia (fog), intia (anti) represent initialization settings of the fog navigation stage and the collision avoidance stage, respectively, and weigh (fog), weigh (anti) represent weight coefficients of the fog navigation stage and the collision avoidance stage in the intersection region range shown in fig. 4, respectively; weigh (fog) < Weigh (anti) indicates that fog navigation operation and collision avoidance operation need to be adopted simultaneously when the simulation main ship OS1 navigates to the intersection area shown in FIG. 4, but the collision avoidance operation is mainly adopted;
procedure using question card evaluation: the manufactured evaluation problem card can be used for evaluating the aptitude of the crew, and as shown in fig. 5, the problem card of the invention is used for the automatic evaluation process of the aptitude of the crew; after the evaluation is started, firstly, a question card which is designed in advance needs to be loaded, a driving team on duty operates and simulates a main ship to start a navigation task, the simulated main ship sequentially carries out an anchor-taking stage, a visibility bad stage, a ship communication stage, a ship collision prevention stage, an accidental event emergency stage and a berthing operation stage, corresponding operation is completed in each stage range to obtain a score R (i) of corresponding evaluation operation behavior, and a final evaluation result is obtained by summarizing according to the evaluation weight Weigh (i) of each stage; the following calculation formula
Wherein FinalR represents the total score, R (i) represents the evaluation score obtained in the stage i, and Weigh (i) represents the weight corresponding to the stage i; the following is the document operation of the achievements, and the conventional document operation comprises the saving, printing and screening of the achievements; after the final evaluation result is subjected to the document operation, the evaluation process is also ended;
use of the evaluation model method: the achievement of the final evaluation depends on the evaluation of each divided process stage, each process stage can adopt different evaluation models, and a reasonable evaluation model can obtain an ideal evaluation value;
as shown in fig. 6, according to the evaluation method for comparing the actual operation result with the ideal operation result, when the actual operation result is close to the ideal operation result (standard value), the evaluation result tends to be 100%; when the actual operation result is between the minimum required operation result (and the grid value) and the ideal operation result (standard value), the evaluation result is between 60% and 100%; taking the ship speed influence factor in the navigation stage with poor visibility as an example, if the speed of the simulated main ship is too high, the reaction time of driving a duty team is reduced, so that the ship is in a urgent situation, if the speed of the simulated main ship is too low, the ship is in a passive situation, so that the safety of the ship is influenced, if the speed is too high or too low, the ship speed is not suitable, and the ship speed needs to be controlled within a reasonable range; if Vs is taken as the ideal speed of the simulated host ship in the poor visibility navigation stage, Va1 and Va2 are taken as the lowest speed and the highest speed which are acceptable in the poor visibility navigation stage of the simulated host ship; in order to ensure safety, when the simulated main ship sails in a poor visibility stage, a driving duty team needs to control the ship speed within the ranges of Va1 and Va 2; meanwhile, specific values of Vs, Va1 and Va2 are not explicitly specified, and need to be specifically determined according to actual conditions such as ship maneuverability, natural channel conditions, traffic density and visibility; the functional relationship between the ship speed and the evaluation value and the weight of the ship speed evaluation value in the evaluation value of the operation in the whole poor visibility stage can be determined by various methods such as an expert survey method, an empirical method and the like.
Claims (1)
1. A method for manufacturing a standardized problem card for automatic evaluation of resource management practice of a driving platform is characterized by comprising the following steps:
1) preparing a question card, comprising: the applicable objects of the question cards are captain, major, two or three, the crew service abilities of different positions are different, and the assessment standards and evaluation bases are also different; according to the requirements of the training and evaluation outline of the marine vessel crew, the captain needs to master comprehensive skill knowledge in the resource management subject of the driving platform;
2) making an assessment task: making a navigation task of the question card according to the training assessment outline, and performing assessment; the training object is a large captain in an infinite navigational area, and the coastal range of China is selected as a training water area; the evaluation of the Shanghai area selects a ship operation task that the anchoring land of the Yangtze river mouth is anchored and sails to an outer high bridge to be berthed through a deepwater channel of a north slot of the Yangtze river;
3) stage division: performing evaluation stage division on the electronic chart according to the assessment task, and determining the number of the evaluation stage division, and the time and space range of each stage; the major deputy of the captain serves as a deck management-level crew, and the assessment items made by the existing cockpit resource management assessment outline are mainly effective coordination and comprehensive application of ship resources and emergency operation of emergencies on the basis of ship manipulation skill application and collision avoidance rule understanding; dividing a navigation section from a deep water navigation channel of a north slot of a long estuary to an outer high bridge according to a space range, taking an anchor area as an anchor lifting operation area, taking a navigation channel area as a navigation stage area, taking a traffic flow dense area as a collision avoidance stage area, selecting a part of the navigation channel area to change the visibility of a training main ship by setting fog concentration on a navigation simulator, taking the navigation channel area as a poor visibility stage, selecting a range of the navigation channel area to set accidental and emergency events of the training main ship on the navigation simulator, taking the navigation channel area as an accidental event emergency operation stage, wherein the accidental and emergency event settings include but are not limited to: the method comprises the following steps that a main engine fails, a steering engine fails, a compass fails, a ship fire disaster, a ship spills oil and personnel fall into water, berthing operation is needed when a training main ship sails near a berth of an outer high-rise bridge port, the region is divided into berthing operation stages, and the training main ship is divided into ship communication stages in the whole sailing task, considering that all personnel in a driving station class group need to communicate with a traffic management center and other target ships;
if the division is completed, entering the next step, and returning to the previous step again if the division is not completed;
4) establishing an evaluation model: further refining each divided stage, determining an evaluation module, an evaluation index system and an evaluation model method of each stage, compiling a target ship state modification function and setting parameters of a navigation environment; if each stage is divided by a space range, when the longitude and latitude of a training main ship belong to the space range with poor visibility, a fog concentration setting function is triggered, the fog concentration setting function increases and adjusts fog concentration when the training main ship just enters the space range with poor visibility, the fog concentration function resolves the fog concentration when the training main ship exits the space range with poor visibility to restore the normal visibility, and the fog concentration function modifies the fog concentration according to the relative position between the training main ship and the space range of the visibility stage; the evaluation training main ship is divided into subjective factors and objective factors according to the influence factors of the operation condition in the fog navigation stage, wherein: the method comprises the following steps that the number type of a signal lamp is set, a siren switch is set, the side distance between a ship and a navigation channel, the offset distance between a ship position and a planned route and the timing time of the ship course belong to objective influence factors, the quality of the ship position and the planned route is judged by using a method for comparing an operation value with a standard value, the timeliness of the operation performance and the lookout communication of a crew belongs to subjective influence factors, and a fuzzy evaluation method is required to be used for judgment; the final operation result of the fog navigation stage needs to summarize the evaluation results of the objective influence factors and the subjective influence factors, as shown in the following formula:
wherein, the weight (obweight) of the objective influence factors and the weight (subwaigh) of the subjective influence factors are determined according to an empirical method and an expert survey method, m objective influence factors and n subjective influence factors are determined, obweight (i) represents the weight of the ith objective influence factor, and subwaigh (j) represents the weight of the jth subjective influence factor; the obresult (i) and the subresult (j) respectively represent the evaluation result of the corresponding ith objective influence factor and the evaluation result of the jth subjective influence factor; i belongs to [1, m ], j belongs to [1, n ];
5) summarizing and sorting the divided evaluation results of six stages, determining the proportion of the evaluation result of each stage in the whole evaluation, namely the weight according to a practical experience method and an expert survey method, and ensuring the normalization processing of the weight, as shown in the following formula:
6) according to
Finding a final evaluation result, wherein R (i) represents the evaluation result of the ith stage, and Weigh (i) represents the weight of the ith stage;
7) storing the question cards;
8) finishing the production of the question card;
setting the fine adjustment of stage modification including mode modification, range modification or weight modification between the step 3) and the step 4);
if the modification is completed, the next step is carried out, and if the modification is not completed, the previous step is returned;
the set evaluation question card is loaded by a coach control console unit of the navigation simulator and is used for training and evaluating the crew.
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