KR19980019571A - Aircraft landing guidance device using laser beam - Google Patents

Abstract

All aircraft around the world are equipped with advanced equipment for flight, takeoff and landing, and large crashes are occurring despite the fact that the control tower and runway have the latest equipment.

It is still evidence that the latest equipment is incomplete and needs a more complete complement.

Therefore, the applicant has studied how to use the laser beam to allow the pilot to land directly along the light with the naked eye.

Unlike ordinary light, the laser beam can shine through the fog or rain at a great distance, and can be changed to a variety of colors, so that the naked eye can see the beam beam clearly and try to land.

Run the beam by placing a beam below the runway landing point centerline (50) and in line with the runway (21), firing the beam and the pilot will be led to the landing point while watching the light. You will not be able to find your landing spot and fall.

Description

Aircraft guided landing gear using laser beam

On August 6, 1997, Korean Air 801's Boeing 747 crashed into Nimitsu Hill Jungle near Agana Airport, Guam. This was another catastrophic accident on the world's airlines, where 226 people were killed.

On March 25, 1998, the US Federal Transportation Safety Commission (NTSB), which is investigating the incident history of Korean Air flight 801, has the lowest safety altitude warning system (MSAW) and vertical guided glide slopes. Was not working at the time of the accident, saying the tower failed to inform the pilot that the altitude was below normal.

The minimum safety altitude alarm is a device installed at the close proximity control station in Anderson Air Force Base in Guam, and if the aircraft descends excessively, the warning radar screen will be informed by text and sound 15 seconds before the minimum safety altitude is violated.

In addition, the glide slope 20, which is a vertical induction device, serves as a device installed next to the landing point of the runway to catch the gliding angle so that the aircraft can approach the landing point of the runway at an angle 21 of about 3 degrees.

If the glide slopes do not work, the descent angle from the ground is unknown, so the pilot must abandon the instrument landing by the runway and control lanes, and try to land by predicting the descent angle depending on the altimeter with the maneuver and on-board equipment .

In this case, the pilot becomes very embarrassed and mentally stressed, increasing the risk of an accident.

Thus, the applicant has come to think of the following device.

When the laser beam is installed under the center line of the runway landing point (50) and fixed at an angle of about 3 degrees above the runway direction straight line to launch the beam, the pilot makes a landing while looking at the light with the naked eye. Even if the fields (10, 20, 30, 30a) are inoperable, several branched rains (41, 41a) that shine like gratings stretch straight out from the runway to the aircraft. If you follow, you will reach the runway landing and you will not fall below the runway.

Especially on cloudy or rainy days, the light is brighter and brighter, so it can be more valuable than any induction equipment on a foggy day.

As mentioned in the detailed description above, there were many accidents in which the aircraft collapsed because it could not find the landing point, even with the excellent advanced instrument landing guidance devices (Fig. 1). Here are some of the accidents that have failed to find a landing point so far.

July 1993 crashed at Yasan during landing of Mokpo-Asiana Airlines

August, 97 Runway left during Jeju-Korean Air

In August 1997, flight 943, Guam-Japan Airlines, misplaced the runway while landing at Agana Airport, was instructed by the airport control tower to evacuate the crisis.

In August, 97, Taiwan-Taiwan Airborne Airlines aircraft crashed at the fishery hill 1km away during the landing at Mazdao Airport.

In February 1998, 387 Philippine-Philippines Pacific Pacific crashed into a mountainous village during landing.

In February 1998, Taiwan-Taiwanese Airways Airbus A-300 passenger plane crashed at hundreds of meters from the runway after failing to make the first landing at Chongqing International Airport.

All of these accidents tell you how important it is to land during the flight. According to the US Department of Transportation, 51 of 67 jet aircraft major accidents of US national airlines have occurred during takeoff and landing in the last 20 years. Of the 51 cases, 33 percent (65 percent) accounted for 18 percent (35 percent) of the landing stage. Takeoff is a maneuver that raises more than 300 tons of aircraft into the sky, and landings also land safely on runways that are only chopsticks wide when looking down from thousands of meters.

As long as the aircraft flies in the sky, there are always dangers of landing, so a safer landing phase is needed and prevents any further accidents. The aim is to prevent financial loss as well as more important casualties. There are various kinds of lasers such as medical, military, scientific, iron plate cutting, aerial laser show, etc. The type used for induction of aircraft landing should be used for aerial laser show. The conventional technique is well known as night laser show at Gapcheon at Daejeon Expo. Even now, Lotte World in Seoul has been installed for indoor use and is performing magnificent and beautiful shows.

Proposed to solve all the problems of aircraft landing, digging below the landing line center line, installing a laser beam device in it, fixing the beam at an angle of about 3 degrees upward from the runway line, and launching point starts at one point. There is a fan-shaped, multi-beam beam that spreads out like a grate (41a) to the aircraft, and one of the most central stems in line with the runway (41) is the center that the pilot follows, especially in a more visible color. To be.

It is easy for the pilot to be on the beam line first (41a), and once it is found, the beam will be in line with the runway once the beam has been found and then be in line with the runway. The narrower one point is, the more you can guess the distance, so if you use it with other instruments, you will get a safer landing.

1 is a schematic diagram of instrument landing induction device (ILS)

2 is an exemplary side view of the aircraft landing along the laser beam;

3 is an exemplary rear view of the aircraft landing along the laser beam;

* Brief Description of Drawings

10. Horizontal guide, 20. Vertical guide, 21. Runway straight and 3 degree angle, 30,30a. Runway direction guidance device, 30b. Apparatus for directing light or radio waves vertically so that the aircraft passes over it and approaches the runway, 40. Runway, 41. Laser beam in line with the runway, 41a. 41 and other colored laser beams, 50. Laser beam device installation diagram

Unlike the runway, which is not visible to the naked eye, and merely using a precision measuring instrument, the configuration of the present invention is directly induced by looking at the light that has led to the runway, so that the direction and altitude of the runway can be solved at the same time. It is anticipated that the inherent risks of this will be reduced by this device, which will greatly contribute to the prevention of aircraft accidents in the world.

When the fog is heavy or when the clock is bad due to rain, the aircraft must give up landing and return, and severely prohibit takeoff and landing.

In this case, the pilots are working under mental pressure due to the hard work and the reprimand due to the return. The situation is trying to land too much. The biggest source of stress for pilots is the emotional conflict between airlines' operating balance and passenger safety issues. The pilots think of the company's financial damage the most when returning, even in inevitable circumstances.

Given these circumstances, you should not turn anyway, and you have to land at once, but if the equipment breaks down, it is very unstable and it is dangerous even when the clock is very bad due to heavy fog. The effect of the laser beam is really great at this time. The beams that shine through the fog and shine brightly will guide you to stabilize the pilot's mind and land as if you walked with your eyes closed. If you follow the light to the runway landing point and use the Instrument Landing Guidance System (ILS) at the same time, it will be more stable, but you will be able to land safely if the Instrument Guidance Landing System is not working. If so, it is expected to effectively prevent the fall accident and the return.

Claims (1)

It covers all aircraft landing guidance techniques and devices using laser beams. The beams can be scanned in various colors and include all the facilities utilizing the characteristics of the laser.