JP3561134B2 - Airport runway stop bar system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an airport runway stop bar system that operates to turn on or off a taxiway guide light (hereinafter, referred to as a stop bar light) installed on a taxiway before exiting to an airport runway. More particularly, the present invention relates to an airport runway stop bar system that can perform guidance of an aircraft in an integrated, safe, and reliable manner.
[0002]
[Prior art]
Conventionally, as one of the airport control systems, the airport runway stop bar system that operates the stop bar light for instructing a temporary stop on the taxiway before going to the airport runway is used. Have been.
[0003]
On the other hand, the number of aircraft has increased due to an increase in sky travel and the like in recent years, causing a delay in monitoring time processing. And today's airports need data to accurately monitor aircraft management.
[0004]
In particular, even if the aircraft waiting from the control tower becomes blind spot due to weather or buildings, a system that can guarantee safety is required to maintain and improve the operating capacity of the aircraft and further improve reliability. Have been.
[0005]
[Problems to be solved by the invention]
By the way, as a device for monitoring the passage of an aircraft, a device that monitors a change in a magnetic field using a porcelain loop coil or a device that detects a cut by the aircraft by emitting a laser has been conventionally used. However, these are all looking at changes in the DO signal of the installed device.
[0006]
For this reason, when continuously monitoring an area over a wide area, there is a problem that it is difficult to grasp from which device the data is emitted.
[0007]
On the other hand, the guidance of aircraft by visual observation by a control tower observer increases the burden on the observer due to an increase in the operating capacity of the airport, and there is also a problem of safety in bad weather.
[0008]
In addition, in the future airport, since more aircraft will be used in a narrow space, there is a limit in manually guiding the aircraft.
[0009]
An object of the present invention is to provide infrared communication means capable of transmitting data on both sides of a taxiway in a limited area such as a taxiway before exiting to an airport runway, when infrared rays are cut off by passage of an aircraft. It is an object of the present invention to provide an airport runway stop bar system that can perform aircraft guidance at an airport in an integrated, safe, and reliable manner by detecting the passage of an aircraft by utilizing the lack of generated data. .
[0010]
[Means for Solving the Problems]
In order to achieve the above object, in the invention of claim 1,Airport runway stop that turns on or off the taxiway guide light (stop bar light) installed on the taxiway before exiting to the airport runway. In the bar system, a monitoring area for monitoring an aircraft is provided on the near side of the approach direction of the aircraft where the stop bar light is installed, and a high-power near-infrared light emitting diode is provided as a light source on one side of the monitoring area. And infrared transmission means for adding predetermined data to infrared light from the light source and transmitting the data, and receiving infrared light transmitted from the infrared transmission means on the other side of the monitoring area across the monitoring area. Providing a receiving means, based on the signal received by the infrared receiving means, by monitoring the lack of data generated when infrared is cut off by passing through the aircraft, to analyze the cut off data and Detects the current position of the aircraft and the gate (position) An airport runway stop bar system, comprising: aircraft passage detection means for generating a forward permission signal for the aircraft in the aircraft, wherein the infrared receiving means includes a predetermined along the taxiway. N receivers (n is an integer of 2 or more) for receiving infrared rays are provided at an interval of, and the infrared transmitting means includes different unique masks for changing a pattern of light transmitted to a receiving side. A modulating lens comprising n reticle having a pattern and n prisms for changing the path of infrared light obtained through the reticle from the high-power near-infrared light emitting diode to different angles from each other; One transmitter is provided for sequentially switching the transmission of infrared rays to the receivers. As the aircraft passage detection means, based on signals received by each receiver, By monitoring whether any receivers receiver infrared it is interrupted by the passage of air machine, and so as to detect whether it has passed through any position aircraft.
[0013]
Therefore, the claims1In the airport runway stop bar system according to the invention, n infrared receivers for receiving infrared rays are provided along the taxiway as infrared receiving means, and n infrared ray transmitting means for changing the pattern of light to be transmitted are provided. A reticle, and a modulation lens composed of n prisms for changing the path of infrared light obtained through the reticle to different angles, and one transmission for sequentially switching the transmission of infrared light to each receiver The receiver monitors the receiver whose infrared rays have been cut off by the passage of the aircraft based on the reception signal of each receiver, and detects the passage position of the aircraft. It becomes easier to find out if you have passed the point.
[0014]
On the other hand, by using a high-power near-infrared light emitting diode as a light source, and as a means for adding data to infrared light from the high-power near-infrared light emitting diode, by using a modulation lens composed of a reticle, an optical lens, and a prism, light and A transmission distance of about 70 m can be secured at a speed of 9.6 kbps without being affected by disturbances such as heat and electromagnetic noise from a power system.
[0015]
Also, a wireless LAN using infrared rays can easily take security measures, similarly to the high-output near-infrared light emitting diode.
[0016]
Further, infrared rays are different from radio waves in that light does not penetrate an obstacle, so that it is easy to form an area where signals are not to be leaked by a blocking body or the like, and are not affected by electromagnetic noise.
[0020]
Claims2According to the invention, in the airport runway stop bar system according to the first aspect of the present invention, a single receiver for receiving infrared rays is provided as the infrared ray receiving means, and a high-power near-infrared light emitting diode is used as the infrared ray transmitting means. A transmitter for transmitting infrared light of the same, and an image pickup means for picking up an image of a monitoring area adjacent to the transmitter, and adding the image data picked up by the image pickup means to the infrared light to a receiver. The aircraft passing detection means, based on the signal received by the receiver, starts monitoring when infrared light is cut off by the passage of the aircraft, based on the video data after the aircraft passed Thus, it is determined whether or not the object whose infrared rays have been cut off is an aircraft.
[0021]
Therefore, the claims2In the airport runway stop bar system according to the invention, one receiver for receiving infrared rays is provided as infrared receiving means, and one transmitter for transmitting infrared rays is provided as infrared transmitting means. Providing an image pickup means for picking up an image, transmitting the image data by adding the image data to the infrared light, based on a reception signal of the receiver, starting monitoring when the infrared light is cut off by the passage of the aircraft, and passing the aircraft By judging whether or not the object whose infrared rays have been cut off is an aircraft based on the subsequent image data, it becomes easier to determine that the aircraft has passed.
[0022]
On the other hand, by using a high-power near-infrared light emitting diode as a light source, the claim1The same operation and effect as those of the invention can be obtained.
[0023]
As described above, even in the case of continuously monitoring a wide area in an airport, guidance of an aircraft can be performed comprehensively, safely, and reliably.
[0024]
Therefore, with the increase in the number of aircraft caused by the increase in air travel, prompt guidance of aircraft will help maintain and improve the operating capacity of the airport and further improve reliability.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, as shown in FIG. 1, the infrared rays utilize the fact that light does not penetrate an obstacle, unlike radio waves, and the fact that the wheels of an aircraft serve as a signal interrupting body.
[0026]
In addition, as a method of detecting the position of an aircraft by infrared rays, unlike a two-dimensional plane data obtained by image processing, a one-dimensional object sensing method of determining the passage of an aircraft by breaking a line is adopted. There are places where data is cut off at the front and rear wheels. For this reason, since there is data omission during the passage of one aircraft, the monitoring area for monitoring the aircraft is made larger than the interval between the front wheels and the rear wheels as shown in FIG. Then, by recognizing the passage of the aircraft by such monitoring, a signal for permitting forward movement is generated for the aircraft waiting at the gate in front.
[0027]
That is, in the present invention, a monitoring area for monitoring the aircraft is provided on the front side of the aircraft approach direction at the position where the stop bar light is installed, and a high-power near-infrared light emitting diode is provided as a light source on one side of the monitoring area. And infrared transmission means for adding predetermined data to infrared light from the light source for transmission, and infrared reception means for receiving infrared light transmitted from the infrared transmission means on the other side of the monitoring area across the monitoring area. Based on the signal received by the infrared receiving means, by monitoring the lack of data generated when the infrared light is cut off by the passage of the aircraft, the cut off data is analyzed to determine which position the aircraft has now passed. When a pass is detected, a signal is issued to the aircraft waiting at the gate (position) in front of the aircraft to allow the vehicle to proceed. To.
[0028]
Hereinafter, embodiments of the present invention based on the above-described concept will be described in detail with reference to the drawings.
[0029]
(First embodiment; transmitter: receiver = 1: n)
FIG. 3 is a schematic diagram showing a configuration example of the airport runway stop bar system according to the present embodiment.
[0030]
That is, as shown in FIG. 3, the airport runway stop bar system of the present embodiment is installed at a predetermined interval along the taxiway 1 before exiting to the airport runway as the infrared receiving means. There are provided n (three in this example) receivers 21, 22, 23 for receiving.
[0031]
Also, as the infrared transmitting means, a single transmitter 3 that includes a high-power near-infrared light emitting diode as a light source and a modulation lens 4 and sequentially switches transmission of infrared light to the receivers 21, 22, and 23 is used. Provided.
[0032]
Here, in the case of three receivers 21, 22, 23, for example, as shown in FIG. 4, the modulation lens 4 has three unit modulation lenses 41, 42, 43 attached to a disk-shaped surface. By rotating about the rotation axis, infrared rays can be sequentially transmitted to the receiver 21, the receiver 22, and the receiver 23.
[0033]
Further, each of the unit modulation lenses 41, 42, and 43 is, for example, as shown in FIG. 5, a reticle having a unique mask pattern different from each other, for example, as shown in FIG. 6, for changing the pattern of light transmitted to the receiving side. 5, a prism 6 for changing the path of infrared light obtained from the high-power near-infrared light emitting diode 3a through the reticle 5 to different angles, and a modulation generated when the path of infrared light is changed by the prism 6. And a modulation lens 7 for correction.
[0034]
On the other hand, the computer 8 serving as the aircraft passage detecting means monitors which of the receivers whose infrared rays have been cut off by the passage of the aircraft is based on the signals received by the receivers 21, 22, and 23. In this way, it is detected which position the aircraft has passed.
[0035]
In FIG. 3, 9S indicates an optical fiber cable on the transmitting side, and 9R indicates an optical fiber cable on the receiving side.
[0036]
Next, the operation of the airport runway stop bar system according to the present embodiment configured as described above will be described.
[0037]
When an aircraft is detected by one transmitter 3 and a plurality of receivers 21, 22, and 23, transmission of infrared rays to each receiver 21, 22, and 23 can be performed by attaching the modulation lens 4 to the transmitter 3. Switch.
[0038]
In other words, since the modulation lens 4 has three unit modulation lenses 41, 42, and 43 mounted on a disk-shaped surface, the modulation lens 4 rotates around a rotation axis, thereby causing infrared rays from the high-power near-infrared light emitting diode 3a to rotate. Can be sequentially transmitted to the receiver 21, the receiver 22, and the receiver 23.
[0039]
On the other hand, when the aircraft passes through the monitoring area of the aircraft, the wheels of the aircraft first cut off the infrared light path of the receiver 21 disposed at the front. At this time, the infrared data does not reach the receiver 21. Next, the wheels of the aircraft cut off the infrared light path of the receiver 22, so that no infrared data reaches the receiver 22. Next, similarly, the wheels of the aircraft cut off the infrared light path of the receiver 23, and the infrared data does not reach the receiver 23.
[0040]
In this way, the passage of the aircraft can be detected by knowing the location of the receiver where the aircraft cuts off.
[0041]
On the other hand, in the transmission of infrared rays by the prism, since the same data flows in all three, the computer 8 determines which receiver receives the data from the DI information, and there is no difference in data.
[0042]
In this regard, in the present embodiment, as shown in FIG. 5, each unit modulation lens 41, 42, 43 passes through the reticle 5 having a unique mask pattern different from each other as shown in FIG. A prism 6 for changing the path of the infrared ray obtained at a different angle from the other, and a modulation lens 7 for correcting the modulation generated when the path of the infrared ray is changed by the prism 6, so that the received data can be received. By making a difference for each of the receiver 21, the receiver 22, and the receiver 23, it is possible to determine from which receiver the data is sent.
[0043]
That is, the reticle 5 changes the pattern of light reaching the receiving side. By changing the receiving pattern by this method, the reticle 5 reaches the receiving pattern without losing any one of the patterns 1, 2, and 3 in this order. In this case, it is determined that the aircraft has not passed at that point.
[0044]
The prism 6 changes the course of the infrared light, and has an angle α with respect to the positions of the receivers 21, 22, and 23, respectively.₁, Α₂, Α₃Is set.
[0045]
Note that, for the receiver 3 installed at a position facing the transmitter 4, the angle α₃Is set as 0.
[0046]
As described above, when the computer 8 detects the passage of the aircraft, the computer 8 generates a forward permission signal for the aircraft waiting at the gate (position) in front.
[0047]
As described above, in the airport runway stop bar system according to the present embodiment, three receivers 21, 22, 23 for receiving infrared rays are provided along the taxiway 1 as infrared receiving means, and infrared transmitting means is provided. When the path of infrared rays is changed by three reticle 5 that changes the pattern of light to be transmitted, three prisms 6 that change the path of infrared light obtained through reticle 5 to different angles, and prism 6 A modulation lens 4 composed of a unit modulation lens 7 for correcting the modulation generated in the receiver, a transmitter 3 for sequentially switching the transmission of infrared rays to the receivers 21, 22, and 23 is provided. Monitors the receiver whose infrared rays have been cut off by the passage of the aircraft based on the reception signals of the devices 21, 22, and 23, and detects the passage position of the aircraft Because it is in so that, whether the aircraft has passed where the point is likely to be found.
[0048]
On the other hand, a modulation lens 4 composed of a reticle 5, a prism 6, and a unit modulation lens 7 is used as a means for using the high-power near-infrared light emitting diode 3a as a light source and for adding data to infrared rays from the high-power near-infrared light emitting diode 3a. Is used, it is possible to secure a transmission distance of about 70 m at a speed of 9.6 kbps without being affected by disturbances such as light, heat, and electromagnetic noise from a power system.
[0049]
Also, a wireless LAN using infrared rays can easily take security measures, similarly to the high-power near-infrared light emitting diode 3a.
[0050]
Further, infrared rays are different from radio waves in that light does not penetrate an obstacle, so that it is easy to form an area where signals are not to be leaked by a blocking body or the like, and are not affected by electromagnetic noise.
[0051]
As described above, it is possible to guide the aircraft at the airport comprehensively, safely, and reliably, and as a result of the increase in the number of aircraft caused by the increase in air travel, the prompt It will be useful for maintaining and improving the operation capacity and further improving the reliability of the ship.
[0052]
(Second Embodiment: Transmitter: Receiver = 1: 1 Configuration)
FIG. 7 is a schematic diagram showing a configuration example of the airport runway stop bar system according to the present embodiment, and the same elements as those in FIG. 3 are denoted by the same reference numerals.
[0053]
That is, as shown in FIG. 7, the airport runway stop bar system according to the present embodiment is installed at a predetermined interval along the taxiway 1 before exiting to the airport runway as the infrared ray receiving means. There are provided n (three in this example) receivers 21, 22, 23 for receiving.
[0054]
In addition, a high-power near-infrared light emitting diode 3a as a light source is provided as infrared transmitting means so as to face each of the receivers 21, 22, and 23 along the guide path 1, and the corresponding receivers 21, 22 and 23 are provided. , 23 are provided with three transmitters 31, 32, 33 for transmitting infrared rays.
[0055]
Each of the transmitters 31, 32, and 33 adds, for example, as shown in FIG. 8, data composed of a group ID, an individual ID, and a time-series No. to infrared light from the high-output near-infrared light emitting diode 3a. The infrared rays can be transmitted to the corresponding receivers 21, 22, 23 while synchronizing with each other.
[0056]
Here, the group ID indicates a group in which the present system is installed, and serves as an index for knowing which gate (position) the aircraft has passed in the computer 8 as the aircraft passage detecting means.
[0057]
The individual ID is an index of the data from which transmitter.
[0058]
The time series No is an index of when data is transmitted from the transmitter.
[0059]
On the other hand, based on the group ID, individual ID, and time series No. of the signals received by the receivers 21, 22, and 23, the computer 8 serving as the aircraft passage detection means receives the infrared rays cut off by the passage of the aircraft. By monitoring which receiver the device is, it detects which position the aircraft has passed.
[0060]
Next, the operation of the airport runway stop bar system according to the present embodiment configured as described above will be described.
[0061]
When the transmitters 31, 32, and 33 for detecting the passage of the aircraft and the receivers 21, 22, and 23 are installed facing each other in parallel along the taxiway 1, the transmitter 31, the transmitter 32, and the transmitter While synchronizing at 33, data consisting of a group ID, an individual ID, and a time-series No is added to infrared rays from the high-output near-infrared light emitting diode 3a, and To send.
[0062]
In this case, the group ID indicates the group in which the system is installed, and the computer 8 determines which gate (position) the aircraft has passed.
[0063]
Also, the individual ID is a material for knowing from which transmitter in the group the data is transmitted. For example, as shown in FIG. 9, by monitoring that the data signal is turned off on the receiving side, the aircraft can pass through. Determine if you have done it.
[0064]
Further, the time series No is data describing whether data from the transmitters 31, 32, and 33 has been transmitted, and the time series No is associated with the transmitter 31, the transmitter 32, and the transmitter 33 in time. Used.
[0065]
That is, in this method, when the signal is turned off in the order of 03 → 02 → 01 ID, it indicates that the aircraft has passed.
[0066]
It should be noted that, in the method as described above, since data always flows to the computer 8, it is expected that the load on the processing of the computer 8 will increase when there are many groups.
[0067]
Therefore, in such a case, it is preferable to adopt a method of transmitting the final data to the computer 8 only when the data line by infrared rays is cut off by providing the receivers 21, 22, 23 with a data buffer function. .
[0068]
That is, in this method, when the signals are turned ON in the order of 01 → 02 → 03 ID, it indicates that the aircraft has passed.
[0069]
As a result, congestion of the received signal can be avoided.
[0070]
On the other hand, a matrix determination method in which individual IDs and time-series Nos are displayed in a matrix is used to determine the passage of an aircraft.
[0071]
Further, by installing the transmitter 31, the transmitter 32, and the transmitter 33 in the vicinity, that is, at a position shorter than the length at which the aircraft cuts off the infrared rays, the passing of the aircraft is continuously performed by the receiver 21 and the receiver. 22, it can be detected by the receiver 23.
[0072]
That is, in the matrix formed by the passage of the aircraft, for example, as shown in the blank section of the processing mechanism in FIG.
[0073]
In this case, by setting the interval between the transmitters 31, 32, and 33 to a position shorter than the length at which the aircraft cuts off the infrared rays, the individual IDs 01 and 02, and 02 and 03 simultaneously detect the aircraft in time series. Exists. As a result, the individual IDs 01 to 03 are connected in time series.
[0074]
The computer 8 determines the passage of the aircraft when the individual IDs 01 to 03 are connected according to, for example, a flowchart shown in FIG.
[0075]
As described above, when the computer 8 detects the passage of the aircraft, the computer 8 generates a forward permission signal for the aircraft waiting at the gate (position) in front.
[0076]
As described above, in the airport runway stop bar system of the present embodiment, three infrared receivers 21, 22, 23 are provided along the taxiway 1 as infrared receivers, and infrared transmitters are provided. The three sets of data transmitted from the high-power near-infrared light emitting diode 3a to the corresponding receivers 21, 22, 23 by adding data composed of a group ID, an individual ID, and a time-series No. Transmitters 31, 32, and 33 are provided so as to face the respective receivers 21, 22, and 23. Based on the group ID, the individual ID, and the time series No. of the received signals of the respective receivers 21, 22, and 23, the aircrafts are arranged. By monitoring the receiver whose infrared rays are cut off by passing through and detecting the passing position of the aircraft, where the aircraft has passed It turned out to be easily.
[0077]
On the other hand, since the high-power near-infrared light emitting diode 3a is used as a light source, it is possible to obtain the same effects as in the case of the above-described first embodiment.
[0078]
(Third Embodiment; Monitoring by Video Information)
FIG. 11 is a schematic diagram showing a configuration example of an airport runway stop bar system according to the present embodiment, and the same elements as those in FIGS. 3 and 7 are denoted by the same reference numerals.
[0079]
That is, in the airport runway stop bar system of the present embodiment, as shown in FIG. 11, one receiver 2 for receiving infrared rays is provided as the infrared ray receiving means.
[0080]
Also, as the infrared transmitting means, a high-power near-infrared light emitting diode 3a as a light source, which is installed so as to face the receiver 2 with the guide path 1 interposed therebetween, and transmits one infrared light to the receiver 2 In addition to the transmitter 3, a camera 10 is provided adjacent to the transmitter 3 as imaging means for capturing an image of a monitoring area.
[0081]
The transmitter 3 is configured to be able to add video data captured by the camera 10 to infrared rays from the high-power near-infrared light emitting diode 3a and transmit the data to the receiver 2.
[0082]
On the other hand, the computer 8 serving as the aircraft passage detection means starts monitoring when the infrared rays are cut off by the passage of the aircraft based on the signal received by the receiver 2 and based on the video data after the aircraft has passed. Then, it is determined whether or not the object whose infrared rays have been cut off is an aircraft.
[0083]
Next, the operation of the airport runway stop bar system according to the present embodiment configured as described above will be described.
[0084]
A camera 10 is installed at a point serving as a gate, and an image from the camera 10 is transmitted to the computer 8 by optical space transmission to determine the passage of the aircraft.
[0085]
When the camera 10 and the transmitter 3 are installed parallel to each other along the taxiway 1, the camera 10 and the transmitter 3 are set to be larger than the width of the wheels of the aircraft, so that the image from the camera 10 is disturbed by the wheels. prevent.
[0086]
The computer 8 checks the video from the camera 10 as needed according to, for example, a flow chart shown in FIG. 12, and confirms a change in the image.
[0087]
In this case, if the aircraft cuts off the infrared transmission path, no image is transmitted to the receiver 2 side. Then, when the transmission data is turned off, the computer 8 starts monitoring. When the aircraft passes through the infrared transmission path, the image of the wheels projected on the camera 10 is transmitted to the computer 8. The video data is subjected to image analysis processing by the computer 8 to determine whether the object whose signal is currently interrupted is an aircraft.
[0088]
As described above, when the computer 8 detects the passage of the aircraft, the computer 8 generates a forward permission signal for the aircraft waiting at the gate (position) in front.
[0089]
In the above description, by directing the imaging direction of the camera 10 to the traveling direction of the aircraft, for example, as shown in FIG. 13, an overall image of the aircraft that has passed can be obtained. Then, the video data from the camera 10 is subjected to image analysis processing by the computer 8, so that the model of the aircraft that has passed can be determined.
[0090]
As described above, in the airport runway stop bar system of the present embodiment, one receiver 2 for receiving infrared rays is provided as infrared receiving means, and one transmitter for transmitting infrared rays is provided as infrared transmitting means. 3 and a camera 10 serving as an image pickup means for picking up an image of a surveillance area. The image data is added to infrared rays and transmitted. Based on a signal received by the receiver 2, the infrared rays are cut off by passing through the aircraft. Monitoring is started at the point in time, and based on the image data after the aircraft has passed, it is determined whether the object that has cut off the infrared is an aircraft, so it is more likely that the aircraft has passed It becomes easy to be sure.
[0091]
On the other hand, since the high-power near-infrared light emitting diode 3a is used as a light source, it is possible to obtain the same effects as in the first and second embodiments described above.
[0092]
(Other embodiments)
(A) In the first embodiment, the case where three receivers are provided has been described. However, the present invention is not limited to this, and the present invention is also applicable to a case where two or four or more receivers are provided. By applying the same method, it is possible to obtain the same operation and effect as those described above.
[0093]
(B) In the second embodiment, the case where three receivers and three transmitters are provided has been described. However, the present invention is not limited to this, and two or four or more receivers and transmitters are provided. Also in the case of providing, the present invention can be applied in the same manner, and the same operation and effect as the above-described case can be obtained.
[0094]
(C) In the above embodiments, the case where the present invention is applied to the airport runway stop bar system has been described. However, the present invention is not limited to this, and other systems, such as a traffic monitoring system on a highway, may be used. The invention is equally applicable.
[0095]
【The invention's effect】
As described above, according to the present invention, it is possible to provide an airport runway stop bar system capable of comprehensively, safely, and reliably guiding an aircraft at an airport.
[0096]
As a result, with the increase in the number of aircraft caused by the increase in air travel, prompt guidance of aircraft will help maintain and improve the operating capacity of the airport and further improve reliability.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining a method of detecting infrared light, which is a premise of the concept of the present invention.
FIG. 2 is a schematic diagram showing a monitoring range when monitoring only data which is a premise of the concept of the present invention.
FIG. 3 is a schematic diagram showing a first embodiment of an airport runway stop bar system according to the present invention.
FIG. 4 is an exemplary diagram showing an example of an installation configuration of a modulation lens in the airport runway stop bar system according to the first embodiment;
FIG. 5 is a schematic diagram showing a detailed configuration example of the unit modulation lens of FIG. 4;
FIG. 6 is a diagram showing an example of a reticle pattern which is an element of the unit modulation lens of FIG. 5;
FIG. 7 is a schematic diagram showing a second embodiment of the airport runway stop bar system according to the present invention.
FIG. 8 is a diagram showing an example of a data configuration in the airport runway stop bar system of the second embodiment.
FIG. 9 is an exemplary view showing an example in which data in the airport runway stop bar system according to the second embodiment is displayed in a matrix.
FIG. 10 is a flowchart showing processing on the receiving side in the airport runway stop bar system according to the second embodiment;
FIG. 11 is a schematic diagram showing a third embodiment of the airport runway stop bar system according to the present invention.
FIG. 12 is a flowchart showing processing contents of a computer in the airport runway stop bar system according to the third embodiment.
FIG. 13 is an exemplary diagram showing another embodiment of the airport runway stop bar system according to the third embodiment;
[Explanation of symbols]
1. Taxiway,
2,21,22,23 ... receiver,
3, 31, 32, 33 ... transmitter,
3a: High-power near-infrared light emitting diode,
4: Modulating lens,
41, 42, 43 ... unit modulation lens,
5 ... reticle,
6 ... Prism,
7… Modulation lens,
8 ... Calculator,
9S: transmission side optical fiber cable,
9R: Optical fiber cable on the receiving side,
10. Camera.

Claims (2)

In an airport runway stop bar system for turning on or off a taxiway guide light (stop bar light) for instructing a temporary stop installed on a taxiway before exiting to an airport runway, the stop bar light is installed. A monitoring area for monitoring the aircraft is provided on the front side of the aircraft approaching direction at the set position, and a high-output near-infrared light emitting diode is provided as a light source on one side of the monitoring area, and a predetermined amount of infrared light from the light source is provided. Infrared transmitting means for adding and transmitting data is provided, and on the other side of the monitoring area across the monitoring area, infrared receiving means for receiving infrared light transmitted from the infrared transmitting means is provided, and the infrared receiving means Based on the received signal, by monitoring the data loss that occurs when the infrared light is cut off by the passage of the aircraft. Analyzing the cutoff data to detect the position of the aircraft that the aircraft has passed, and, when the passage of the aircraft is detected, advance to the aircraft waiting at the gate (position) in front of the aircraft. Airport runway stop, comprising aircraft passing detection means for generating a permission signal A bar system,
As the infrared receiving means, n (n is an integer of 2 or more) receivers are provided at predetermined intervals along the guideway and receive infrared light, and as the infrared transmitting means, An n number of reticles having different mask patterns different from each other for changing a pattern of light to be transmitted, and a path of an infrared ray obtained through the reticle from the high-power near-infrared light emitting diode is changed at different angles. A modulation lens composed of n prisms, and one transmitter for sequentially switching transmission of infrared rays to each of the receivers,
  As the aircraft passage detection means, based on a signal received by each of the receivers, by monitoring which receiver is a receiver whose infrared rays are cut off by the passage of the aircraft, Airport runway stop bar system characterized by detecting whether the vehicle has passed a position. The airport runway stop bar system according to claim 1,
As the infrared receiving means, one receiver for receiving infrared light is provided. As the infrared transmitting means, one transmitter for transmitting infrared light from the high-output near-infrared light emitting diode is provided. An image pickup means for picking up an image of the monitoring area is provided adjacent to the device, and the image data picked up by the image pickup means is added to the infrared light and transmitted to the receiver,
As the aircraft passage detection means, based on the signal received by the receiver, start monitoring when infrared light is cut off by the passage of the aircraft, based on the video data after the aircraft has passed An airport runway stop bar system, wherein it is determined whether or not the object whose infrared rays have been cut off is an aircraft.

Images