CN104766498A - High-speed airway ramp opening construction and scheduling method thereof - Google Patents

Abstract

The invention discloses a high-speed airway turn configuration, including a flight waiting area, a transition area and a reserved area, wherein the flight holding area is a columnar three-story building, used for aircraft waiting to enter the main airway, passing through the transition area and all The above-mentioned reserved area is connected; the flight holding area is parallel to the main airway, and the distance from the main airway is greater than or equal to the preset minimum distance threshold; the transition area is used to guide aircraft into the main airway; the reserved area is connected to the main airway for aircraft Adjust the lateral speed. The invention also discloses a scheduling method based on the turn configuration of the high-speed airway to schedule aircraft in the flight waiting area to enter the high-speed airway. The invention has the advantages of simple structure and convenient use, and avoids accidents when the aircraft enters the high-speed route.

Description

A High-speed Airway Turn Configuration and Its Scheduling Method

technical field

The invention relates to the field of airway network design and planning, in particular to a high-speed airway turn configuration and a scheduling method thereof.

Background technique

With the increase of air passenger and cargo traffic and number of flight sorties year by year, major aviation countries are facing the dilemma of complex air route structure and major air route congestion. For this reason, international scholars have proposed a new type of air route network that is different from the existing airspace structure - high-speed air route. High-speed airway is a general term for a belt-shaped or tubular airspace structure. The main design idea is to open a one-way, non-crossing, special restriction and priority air high-speed passage for high-performance long-distance busy routes. It connects large urban agglomerations Between, so that the air traffic flow through smoothly and quickly.

Similar to highways, turns are passages for aircraft to enter and exit high-speed airways, but there are relatively few studies on turns of high-speed airways, especially the configuration design and operation methods of turns. If the design of the turn is unreasonable or the scheduling method is not appropriate, the inflow of aircraft at the turn will inevitably affect the operational safety of the main airway. For this reason, the present invention designs a high-speed route turn configuration and its corresponding dispatching method.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-speed airway turn configuration and its scheduling method for the defects involved in the background technology, so as to avoid accidents when aircraft enter the high-speed airway.

The present invention adopts the following technical solutions for solving the problems of the technologies described above:

A high-speed route turn configuration, including flight holding areas, transition areas and reserved areas;

The flight holding area is a columnar three-story building, used for aircraft to wait to enter the main airway, and is connected to the reserved area through a transition area;

The flight holding area is parallel to the main airway, and the distance from the main airway is greater than or equal to a preset minimum distance threshold;

The transition area is used to guide the aircraft into the main airway;

The reserved area connects to the main route and is used for lateral speed adjustment of the aircraft.

As a further optimization scheme of the high-speed route turn configuration in the present invention, the heights of the three floors of the flight holding area are respectively FL370, FL360, and FL350.

As a further optimization scheme for the turn configuration of a high-speed route in the present invention, the included angle between the transition area and the main route is 45 degrees.

As a further optimization scheme of the high-speed route turn configuration in the present invention, the preset minimum distance threshold is 10km.

The invention also discloses a scheduling method based on the high-speed route turn configuration, which includes the following steps:

Step 1), when there is an aircraft waiting to enter the main route in the flight holding area, obtain the position of the aircraft flying to the route turn in the main route, and calculate the distance between each aircraft and the route turn;

Step 2), determine whether the distance between each aircraft and the route turn in step 1) is outside the preset distance threshold range, if the distance between each aircraft and the route turn is outside the preset distance threshold range , then execute step 3), otherwise re-execute step 1) until the distance between each aircraft and the route turn is outside the preset distance threshold range;

Step 3), put the aircraft waiting in the flight holding area into the transition area, and make it move to the reserved area at a constant speed;

Step 4), control the aircraft in step 3) to keep the longitudinal speed constant in the reserved area, and change lanes laterally to enter the main airway.

Compared with the prior art, the present invention adopts the above technical scheme and has the following technical effects:

1. A basic configuration of high-speed airway turns is designed to facilitate aircraft entering the high-speed airway;

2. According to the designed turn configuration, design its corresponding dispatching method to avoid accidents when the aircraft enters the high-speed airway.

Description of drawings

Fig. 1 is method flowchart of the present invention;

Figure 2 is a top view of the turn configuration of the high-speed route;

Figure 3 is a schematic diagram of the collision template;

Figure 4 is a schematic diagram of aircraft C merging into the main route from the tail of aircraft A;

Figure 5 is a schematic diagram of aircraft C merging into the main route from the front of aircraft B.

Detailed ways

Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

As shown in FIG. 1 , the present invention discloses a high-speed airway turn configuration and a dispatching method thereof. First, the high-speed airway turn is designed, and then based on the high-speed airway turn, aircraft entering the high-speed airway are dispatched.

Step 1, design the high-speed airway turns.

High-speed route turn configuration includes flight holding area, transition area and reserved area;

The flight holding area is a columnar three-story building, used for aircraft to wait to enter the main airway, and is connected to the reserved area through a transition area;

The flight holding area is parallel to the main airway, and the distance from the main airway is greater than or equal to a preset minimum distance threshold;

The transition area is used to guide the aircraft into the main airway;

The reserved area connects to the main route and is used for lateral speed adjustment of the aircraft.

As shown in Figure 2, firstly, a flight holding area S is set at the starting point of the turn on one side of the high-speed route. A section of reserved area S3 is set on the side where the route is connected with the turn, and the reserved area S3 is connected with the waiting area S through the transition area S2. After the aircraft completes the waiting procedure, it can enter the transition area S2, run to the reserved area S3, adjust the speed, and merge into the main airway of the high-speed airway.

Step 1-1: Determine the structure of the holding area S, its level and the distance D1 from the main route.

The high-speed routes given by the FAA are set between FL300-FL390. Accordingly, FL370 can be selected to set up the main route. Three levels are used in the holding area, namely FL370, FL360, and FL350. The holding area W1 is connected to the main route. The routes are located at the same level, the waiting area W2 is set at FL360, and the holding area W3 is set at FL350, and a maximum of one aircraft can be arranged on each floor to perform the waiting procedure.

In the present invention, the high-speed airway is a one-way single airway with a fixed width, the main airway width is 20km, the center line is 10km on both sides, and 10km protection areas are respectively set on both sides of the airway, and the width of the reserved area is equal to the width of the main airway , is 20km. Therefore, the distance D ₁ ≥ 10km from the holding area to the side of the main airway.

Step 1-2: Determine the length of the transition zone S2 and the angle α between it and the main route.

(1) In actual operation, all aircraft entering the high-speed route have the same flight performance, and the aircraft have the same flight time and the same state in the transition zone S2, and there is no overtaking behavior between them. But when designing, consider that there are differences in the flight performance of different aircraft i, the flight speed Vi is different, and the required running time ti in the transition zone S2 is different (i=1,2,3....), v _k =max {v _i } Hence the length of S2:

L ₂ ≥ L′ ₂ =v _k ×t _k

(2) In order to facilitate the aircraft turning from the transition area S2 to merge into the reserved area S3, the angle between the S2 area and the main airway can be set to α=45°. Hence the length of S2:

${\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}^{<span\; class="notranslate">\; \&prime;</span><span\; class="notranslate">\; \&prime;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 10</span>}<span\; class="notranslate">\; /</span>\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 10</span>}\sqrt{\mathrm{<span\; class="notranslate">\; 2</span>}}\mathrm{<span\; class="notranslate">\; km</span>}$

Combining the above two points (1) and (2):

Length L2 of S2:

L ₂ ≥ max{L′ ₂ , L″ ₂ }

Step 1-3: Determine the length of the reserved area S3.

After the aircraft enters the reserved area S3, after T2 time adjustment, it keeps moving at a constant speed in the longitudinal direction, first accelerates at a1 uniformly for a distance of D/2 (D=20km) in the lateral direction, and then decelerates at a uniform rate of -a1 for a distance of D/2 (a ₁ > 0) Just reach the centerline of the main airway, that is, pass through time, the lane-changing aircraft just entered the main route, that is, an aircraft You can leave the reserved area within a certain time, so the length of the reserved area S3 can be set as:

$\mathrm{<span\; class="notranslate">\; L</span>}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; \&times;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\sqrt{\mathrm{<span\; class="notranslate">\; D.</span>}<span\; class="notranslate">\; /</span>{\mathrm{<span\; class="notranslate">\; a</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; )</span>$

can meet the operation requirements, and V1 is the aircraft speed during the actual operation of the high-speed route.

Step 2: Determine the scheduling method for this type of turn.

Step 2-1: Determine the release conditions.

The present invention relates to a single high-speed route, along which there are multiple turns for the aircraft on the conventional route to enter. The movement behavior of the aircraft in the multiple turns can be regarded as the same process, and the influence of high-altitude wind is not considered. In the present invention, the aircraft lane change is a transition process from the reserved area S3 to the main airway, which is carried out on one plane, so it is only necessary to consider the influence of the longitudinal separation on the operation safety during the merge. Therefore, when the present invention establishes the collision model, assume that the wingspan of the aircraft is represented by λy, and the interval standard in the longitudinal direction is Sx, with the aircraft as the center, a rectangular area is virtualized with 2Sx and 2λy respectively in the longitudinal and lateral directions as Collision template, as shown in Figure 3. A and B respectively represent the collision templates of two aircrafts in the main route, and their length and width are respectively a=2S _x , b=2λ _y . In order to avoid conflicts, A and B should always be kept out of contact. Therefore, when an aircraft merges into the main route, its collision template should be kept out of contact with the collision templates of the front and rear aircraft in the main route.

When there is an aircraft in the waiting area to perform the waiting procedure, the position of the aircraft in the main route is monitored in real time and passed to the controller in the holding area. After time T0, the released aircraft C arrives at the starting point of S2 area and flies at speed V1 for T1 time. Entering the S3 area, the direction is parallel to the speed direction of the aircraft on the main route. After an adjustment time T2, the lane change is implemented. The aircraft C accelerates uniformly for T ₃ /2 time and then decelerates and accelerates for T ₃ /2 time to ensure that it enters the main route. When the lateral speed is zero, the subsequent execution of the waiting procedure aircraft repeats the above process to determine whether to pass, and T3 is the total lane change time.

According to the above movement process, it can be known that the import of C aircraft can be divided into the following two situations:

(1) Aircraft C merges into the main airway from the rear of aircraft A, as shown in Figure 4. To ensure the safety of the aircraft's merge, the distance L1 between the tail of the collision template of A and the point O at the turn must meet the following conditions:

S _A ＝V ₁ [T ₀ +T ₁ +T ₂ +T ₃ ]

S _A +aL ₁ -a≥a+V ₁ (T ₂ +T ₃ )

$<span\; class="notranslate">\; \&DoubleRightArrow;</span>{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}$

Therefore, a reference point M is set up at a certain distance from point O on the main route, and the length of OM is V ₁ (T ₀ +T ₁ )-a.

(2) Aircraft C merges into the main route from the front of aircraft B, as shown in Figure 5. To ensure the safe operation of the aircraft, the distance L2 between the front of the aircraft B’s collision template and the point O at the turn must meet the following conditions:

S _B ＝V ₁ [T ₀ +T ₁ +T ₂ +T ₃ ]

S _B -L ₂ ≤a+V ₁ (T ₂ +T ₃ )-a

$<span\; class="notranslate">\; \&DoubleRightArrow;</span>{\mathrm{<span\; class="notranslate">\; L</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; )</span>$

Therefore, a reference point N is set up at a certain distance from point O on the main route, and the ON length is V ₁ (T ₀ +T ₁ ).

Therefore, to determine whether an aircraft is cleared, it is only necessary to judge whether two adjacent aircraft in the main route are located outside the MN segment, and then the aircraft in the holding area can be cleared.

Step 2-2: Determine the implementation steps of aircraft scheduling in the holding area.

Step 1: When there is an aircraft waiting to enter the main route in the flight holding area, obtain the position of the aircraft flying to the turn of the route in the main route, and determine whether it is on the MN segment;

Step 2: If the aircraft in the main route are all outside the MN segment, then start clearance at t=T0, otherwise, continue to wait until there is no aircraft in the MN segment;

Step 3: The released aircraft enters the S2 area and moves at a uniform speed T1 to enter the S3 area and maintains the speed V1.

Step 4: The aircraft enters the S3 area, after an adjustment time T2, it starts to change lanes, keeps the speed constant in the longitudinal direction, and accelerates uniformly at a1 in the lateral direction time, and then decelerate uniformly at -a1 Time to complete the lane change.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. A high-speed route turn configuration, characterized in that it comprises a flight holding area, a transition area and a reserved area; The flight holding area is a columnar three-story building, used for aircraft to wait to enter the main airway, and is connected to the reserved area through a transition area; The flight holding area is parallel to the main airway, and the distance from the main airway is greater than or equal to a preset minimum distance threshold; The transition area is used to guide the aircraft into the main airway; The reserved area connects to the main route and is used for lateral speed adjustment of the aircraft. 2. The high-speed route turn configuration according to claim 1, wherein the heights of the three floors of the flight holding area are respectively FL370, FL360, and FL350. 3. The turn configuration of the high-speed route according to claim 1, wherein the angle between the transition area and the main route is 45 degrees. 4. The high-speed route turn configuration according to claim 1, wherein the preset minimum distance threshold is 10km. 5. The scheduling method based on the high-speed route turn configuration according to claim 1, is characterized in that, comprises the following steps: Step 1), when there are aircraft waiting to enter the main route in the flight holding area, obtain the position of the aircraft flying to the route turn in the main route, and calculate the distance between each aircraft and the route turn; Step 2), determine whether the distance between each aircraft and the route turn in step 1) is outside the preset distance threshold range, if the distance between each aircraft and the route turn is outside the preset distance threshold range , then execute step 3), otherwise re-execute step 1) until the distance between each aircraft and the route turn is outside the preset distance threshold range; Step 3), put the aircraft waiting in the flight holding area into the transition area, and make it move to the reserved area at a constant speed; Step 4), control the aircraft in step 3) to keep the longitudinal speed constant in the reserved area, and change lanes laterally to enter the main route.