Ground installation and test method for airborne ultra-long antenna

Abstract

The invention provides a ground installation and test method of an airborne ultra-long antenna, which refines the function inspection step of the antenna, ensures reliable installation and normal folding and unfolding functions of the antenna, accelerates the test progress, and comprises three major steps. Reliable installation of an antenna cable and function inspection of an antenna system are achieved through cooperative work of the onboard winding and unwinding device winch and the ground winding and unwinding winch. According to the ground installation and test method for the airborne ultra-long antenna, the steps are simplified, the operation is convenient, the reliability of system installation is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of aviation design and relates to a ground installation and test method of an airborne super-long antenna. Background Art

[0002] The extra-long antenna is installed in the antenna retractable device inside the fuselage, and the retractable device releases the antenna for use in the air. When installing the existing extra-long antenna, the antenna is first rolled up on the winch, and then the winch is installed in the fuselage. During the test, the winch of the retractable device releases the wire to detect whether the antenna is damaged and whether the antenna can be retracted into place.

[0003] However, the installation and testing of extra-long antennas are usually carried out on the ground. Due to limited ground space, the antenna cannot be fully extended, which affects the inspection of whether the antenna system's retraction and extension functions are normal after ground installation. In addition, during the retraction and extension process, the antenna and the stabilizing cone at the end are easily damaged by contact and friction with the ground. Summary of the invention

[0004] The invention provides a ground installation and test method for an airborne super-long antenna, which solves the installation and ground test of the airborne super-long antenna, namely, the installation and test problems of checking whether the antenna system functions normally and whether the antenna stabilizing cone can be normally positioned and locked.

[0005] The present invention provides a ground installation and testing method for an airborne ultra-long antenna, comprising:

[0006] Step 1: Control the ground winch to release the line to the first preset length, pass the antenna through the onboard guide tube and connect it to the electric winch of the onboard retracting and releasing device;

[0007] Step 2: Control the electric winch to retract the antenna. When the antenna is tightened, set the long antenna length display value on the onboard antenna controller to 0m;

[0008] Step 3: Control the ground winch and the electric winch to rotate in the same direction, and retract the antenna of the second preset length at the first preset speed;

[0009] Step 4: Adjust the rotation direction of the ground winch and the electric winch, release the antenna at the first preset speed, and release the antenna of the third preset length; detect whether the electric winch reel arrangement meets the preset requirements;

[0010] Step 5: If yes, adjust the rotation direction of the ground winch and the electric winch to retract the antenna of the fourth preset length at the first preset speed;

[0011] Step 6: Adjust the rotation direction of the ground winch and the electric winch to release the antenna of the fifth preset length at the first preset speed;

[0012] Step 7: Adjust the rotation direction of the ground winch and the electric winch, and retract the antenna at the first preset speed until the ground winch has released all the antennas or the electric winch reaches its maximum capacity;

[0013] Step 8: adjusting the rotation direction of the ground winch and the electric winch, releasing the antenna of the sixth preset length at the first preset speed, switching the connection between the antenna and the ground winch to the connection with the stabilizing cone, straightening the antenna and placing the stabilizing cone on the conveyor belt;

[0014] Step 9: Control the electric winch and the conveyor belt to rotate in the same direction, and retract the antenna at a second preset speed until the onboard antenna controller receives a signal that the long antenna stabilizes and the cone is in position;

[0015] Step 10: Adjust the rotation direction of the electric winch to release the antenna of the seventh preset length at the second preset speed;

[0016] Step 11: Adjust the rotation direction of the electric winch and retract the antenna at the second preset speed until the onboard antenna controller receives the long antenna stable cone landing signal, and set the long antenna length display value on the onboard antenna controller to 0m.

[0017] Optionally, when the antenna is tensioned, the long antenna length display value on the onboard antenna controller is set to 0m, including:

[0018] When the tension of the antenna reaches (0, 100 kg), the long antenna length display value on the onboard antenna controller is set to 0 m.

[0019] Optionally, the first preset speed is between 0.3 m / s and 3 m / s, and the second preset speed is between 0.3 m / s and 0.5 m / s.

[0020] Optionally, the second preset length is 100m, the third preset length is 50m, the fourth preset length is 950m, the fifth preset length is 100m, the sixth preset length is 10m, and the seventh preset length is 5m.

[0021] Optionally, the method further includes:

[0022] In steps 3 to 7, if there is any jamming or abnormal noise in the guide tube, stop retracting and extend the guide tube and inspect the guide tube, antenna and winch.

[0023] Optionally, the method further includes:

[0024] When the ground winch has lowered the antenna or the electric winch has reached its maximum capacity, the total length of the antenna is determined based on the long antenna length displayed on the onboard antenna controller and the distance between the ground winch and the landing device of the stabilizing cone.

[0025] Optionally, the method further includes:

[0026] In step 9 and step 11, when the long antenna length displayed on the onboard antenna controller is the total length of the antenna, it is detected whether a long antenna stable cone position signal is received;

[0027] If not, check whether the stabilizing cone position sensor and the stabilizing cone connection are normal.

[0028] Optionally, the distance between the ground winch and the horizontal projection of the landing device of the stabilizing cone is a first preset distance.

[0029] Optionally, the first preset distance is 5-8m.

[0030] Optionally, the method further includes:

[0031] If burrs or scratches are observed on the antenna, stop installation and testing.

[0032] The present invention provides a ground installation and test method for an airborne ultra-long antenna, which refines the antenna function inspection steps, ensures that the antenna is installed reliably and that the retracting and releasing functions are normal, and speeds up the test progress. The method includes three major steps, and the reliable installation of the antenna cable and the function inspection of the antenna system are achieved through the cooperation of the on-board retracting and releasing device winch and the ground retracting and releasing winch. The ground installation and test method for an airborne ultra-long antenna provided by the present invention has simplified steps, is easy to operate, ensures the reliability of the system installation, and improves work efficiency. DETAILED DESCRIPTION

[0033] The ground installation and test method of the airborne super-long antenna provided by the present invention are explained in detail with examples below.

[0034] In order to solve the above technical problems, the present invention provides a ground installation and test method for an airborne ultra-long antenna, wherein a retractable wire rack is arranged on the ground, all antenna cables are received on the ground retractable wire rack winch, the power supply of the aircraft and the ground winch are turned on, the aircraft and the ground cooperate with each other to interactively retract and release the antenna cables, and check whether the antenna cables and the retractable and releasing functions are normal. The method comprises the following steps:

[0035] Step 1: Preparation:

[0036] a) The ground retractable wire rack is placed on the ground in the antenna retractable area, and the 220V power supply cable of the ground retractable wire rack has been connected to the ground 220V power supply;

[0037] b) The antenna cables have been fully retracted onto the ground reel winch;

[0038] c) Turn on the 220V power supply switch of the ground pay-off and take-up rack, and check that the ground winch is powered;

[0039] d) Start the ground winch to release the line, and the test personnel drag the antenna cable and stop releasing the line after releasing a certain length;

[0040] e) The technician inserts one end of the long antenna cable into the long antenna positioning device through the cable outlet of the long antenna positioning device, disassembles the long antenna guide tube from back to front, and inserts the long antenna cable at the same time until the long antenna cable enters the electric winch in the retracting unit and is reliably connected to the electric winch, and then restores the installation of the long antenna guide tube in sequence.

[0041] Step 2: Long antenna guide tube function test:

[0042] a) Turn on the AC and DC power switches, and all equipment is powered on and working;

[0043] b) Call up the video monitoring screen on the operating console to monitor the electric winch in the retractable unit;

[0044] c) Turn on the power switch of the antenna controller. After the self-test is completed, press the button to make the controller work in the local state;

[0045] d) When the operator confirms that the long antenna can be retracted, he communicates with the operator on board by intercom. The operator controls the retracting unit through the antenna controller to perform the retracting operation, so that the cable between the retracting unit and the retracting wire rack can be tensioned. Then, the real-time length displayed by the long antenna is reset to zero through the zeroing operation of the antenna controller. At this time, the long antenna length displayed on the operating console and the antenna controller is 0m;

[0046] e) The operator directly performs the cable reeling operation of the long antenna through the antenna controller, and observes the length of the long antenna on the operation console display page (the antenna length displayed on the operation console and the controller is a negative value and decreases), and the antenna tension data should be displayed normally (the tension display value is normal when it is between 0 and 100 kg, and the tension threshold of the ground reeling and unreeling winch is 100 kg);

[0047] f) Check whether the long antenna is being retracted normally, and whether there is any jamming or abnormal noise in the guide tube. If so, press the long antenna stop button on the console to stop retracting; if not, continue to retract the antenna until the antenna retracted length shows -100m. During this process, the antenna retracting speed can be set from small to large between 0.3m / s and 3m / s, and observe the speed of the electric winches on the aircraft and on the ground to increase;

[0048] g) Perform cable release operation on board, and use the electric winch on the ground to collect the cable;

[0049] h) Observe the long antenna retracting and releasing speed, antenna length, antenna tension and other data on the controller. Pause when the long antenna retracting length displays -20m. Observe whether the electric winch on the aircraft arranges the retracted cables tightly and neatly, and whether they are arranged back and forth in layers. Observe whether there are scratches, burrs and other phenomena on the surface of the cable retracted by the electric winch on the aircraft.

[0050] i) Set the antenna retraction and extension speed on the controller and perform the cable retraction operation, and the ground winch cooperates to release the cable;

[0051] j) When the antenna length displays -1000m, it will pause, the aircraft will release the cable, and the ground winch will cooperate to retract the cable;

[0052] k) When the antenna length on the controller shows -900m, stop the cable release operation on board and observe whether the cable released from the electric winch of the ground pay-back and pay-back rack has scratches, burrs, etc.;

[0053] l) Set up and operate the antenna retraction on the controller, retract the cable, and observe whether there is any abnormality during the retraction and release process; if there is no abnormality, continue to retract the cable until the retraction and release length displays -1200m, then press the "Stop" button on the controller to stop retracting the cable.

[0054] The long antenna cable runs smoothly in the guide tube without sticking or abnormal noise, and is judged to be qualified.

[0055] Step 3: Antenna stability cone placement test:

[0056] a) Extend the long antenna about 10m outside the fuselage and loosen the connection between the long antenna and the ground electric winch.

[0057] b) Place the long antenna stabilizing cone on the small pallet truck, and connect the top of the long antenna cable firmly;

[0058] c) Set the initial retracting speed of the long antenna to 0.3m / s on the operating table and perform the cable retracting operation;

[0059] d) Arrange two test personnel on the ground to hold the stabilizing cone with their hands beside the long antenna, and push the small pallet cart towards the long antenna landing device as the antenna is retracted;

[0060] e) Continue to retract the long antenna until the long antenna stabilizing cone is pulled up, the top returns to the exit of the long antenna landing device and is locked;

[0061] f) The long antenna stabilization cone position signal is received on the operating console;

[0062] g) When the long antenna cable is released on the operating table, the ground personnel should pay attention to the long antenna stabilizing cone and ensure that it can be released normally. When it is about to drop to the ground, the long antenna stabilizing cone should be supported and the operator on the operating table should be notified to stop releasing the cable;

[0063] h) Then retract the long antenna to put the stabilizing cone of the long antenna in a locked state.

[0064] Optionally, during the stability cone retraction and extension test, a conveyor belt device may be used to replace the test personnel.

[0065] This method combines the installation with the retractable and extending function inspection, the antenna cable inspection, and the positioning device inspection, which simplifies the installation inspection steps and can also check whether the retractable and extending function of the antenna system is normal.

Claims

1. A ground installation and test method for an airborne ultra-long antenna, characterized in that: include: Step 1: Control the ground winch to release the line to the first preset length, pass the antenna through the onboard guide tube and connect it to the electric winch of the onboard retracting and releasing device; Step 2: Control the electric winch to retract the antenna. When the antenna is tightened, set the long antenna length display value on the onboard antenna controller to 0m; Step 3: Control the ground winch and the electric winch to rotate in the same direction, and retract the antenna of the second preset length at the first preset speed; Step 4: Adjust the rotation direction of the ground winch and the electric winch, release the antenna at the first preset speed, and release the antenna of the third preset length; detect whether the electric winch reel arrangement meets the preset requirements; Step 5: If yes, adjust the rotation direction of the ground winch and the electric winch to retract the antenna of the fourth preset length at the first preset speed; Step 6: Adjust the rotation direction of the ground winch and the electric winch to release the antenna of the fifth preset length at the first preset speed; Step 7: Adjust the rotation direction of the ground winch and the electric winch, and retract the antenna at the first preset speed until the ground winch has released all the antennas or the electric winch reaches its maximum capacity; Step 8: adjusting the rotation direction of the ground winch and the electric winch, releasing the antenna of the sixth preset length at the first preset speed, switching the connection between the antenna and the ground winch to the connection with the stabilizing cone, straightening the antenna and placing the stabilizing cone on the conveyor belt; Step 9: Control the electric winch and the conveyor belt to rotate in the same direction, and retract the antenna at a second preset speed until the onboard antenna controller receives a signal that the long antenna stabilizes and the cone is in position; Step 10: Adjust the rotation direction of the electric winch to release the antenna of the seventh preset length at the second preset speed; Step 11: Adjust the rotation direction of the electric winch and retract the antenna at the second preset speed until the onboard antenna controller receives the long antenna stable cone landing signal, and set the long antenna length display value on the onboard antenna controller to 0m.

2. The ground installation and testing method of the airborne super-long antenna according to claim 1, characterized in that: When the antenna is stretched, set the long antenna length display value on the onboard antenna controller to 0m, including: When the tension of the antenna reaches (0, 100 kg), the long antenna length display value on the onboard antenna controller is set to 0 m.

3. The ground installation and testing method of the airborne super-long antenna according to claim 1, characterized in that: The first preset speed is between 0.3 m / s and 3 m / s, and the second preset speed is between 0.3 m / s and 0.5 m / s.

4. The ground installation and testing method of the airborne super-long antenna according to claim 1, characterized in that: The second preset length is 100 m, the third preset length is 50 m, the fourth preset length is 950 m, the fifth preset length is 100 m, the sixth preset length is 10 m, and the seventh preset length is 5 m.

5. The ground installation and testing method of the airborne super-long antenna according to claim 1, characterized in that: The method further comprises: In steps 3 to 7, if there is any jamming or abnormal noise in the guide tube, stop retracting and extend the guide tube and inspect the guide tube, antenna and winch.

6. The ground installation and testing method of the airborne super-long antenna according to claim 1, characterized in that: The method further comprises: When the ground winch has lowered the antenna or the electric winch has reached its maximum capacity, the total length of the antenna is determined based on the long antenna length displayed on the onboard antenna controller and the distance between the ground winch and the landing device of the stabilizing cone.

7. The ground installation and testing method of the airborne super-long antenna according to claim 6, characterized in that: The method further comprises: In step 9 and step 11, when the long antenna length displayed on the onboard antenna controller is the total length of the antenna, it is detected whether a long antenna stable cone position signal is received; If not, check whether the stabilizing cone position sensor and the stabilizing cone connection are normal.

8. The ground installation and testing method of an airborne ultra-long antenna according to claim 1, characterized in that: The distance between the ground winch and the horizontal projection of the landing device of the stabilizing cone is a first preset distance.

9. The ground installation and testing method of the airborne super-long antenna according to claim 8, characterized in that: The first preset distance is 5-8m.

10. The ground installation and testing method of an airborne ultra-long antenna according to claim 1, characterized in that: The method further comprises: If burrs or scratches are observed on the antenna, stop installation and testing.