Individual Lighting Control and Monitoring System using power line communication of a plural of frequency bands

Abstract

The present invention relates to an aviation lighting control and monitoring system using power line communication utilizing a first frequency band and a second frequency band, comprising: a plurality of lamps; a constant current controller for supplying power to the lamps; a local control unit for controlling the constant current controller and electrically connected to a plurality of isolation transformers installed along the power line and a plurality of lamps; an individual lighting unit for controlling the operation and monitoring the status of each of the plurality of lamps and transmitting operation control signals and status signals of the lamps via power line communication; an individual monitor for controlling a monitoring device for acquiring video signals around the airport; and an individual detector for controlling a detection device excluding video signals to detect events occurring around the airport. It includes individual indicators for controlling display devices installed around the airport, wherein the individual lighting device generates operation control signals and status signals of the lamps to perform power line communication to the constant current controller through the first frequency band, and performs power line communication to the local control unit through a second frequency band higher than the first frequency band using at least one signal among the signals generated from the individual monitor, the individual detector, and the individual indicator, thereby simultaneously transmitting and receiving signals in the first frequency band and the second frequency band without interference between the first frequency and the second frequency.

Description

Technology Field

[0001] The present invention relates to an aviation lighting control and monitoring system using power line communication in multiple frequency bands, and in particular, to an aviation lighting control and monitoring system using power line communication in multiple frequency bands that can suppress communication interference by using low-speed power line communication in a first frequency band (several KHz) for aviation lighting control and monitoring using existing power lines, and using high-speed power line communication in a second frequency band (several MHz) for video monitoring and detection using sensors within the runway. Background Technology

[0003] Generally, aeronautical lighting refers to facilities designated by the Ministry of Land, Infrastructure and Transport as navigational safety facilities that use light, color, or shape to assist in the navigation of aircraft. Depending on their function, such aeronautical lighting can be classified into more than 40 types according to their use, including airfield lighthouses, airfield identification lighthouses, approach light systems, approach angle indicators, runway lights, runway threshold lights, runway threshold extension lights, runway centerline lights, turn lights, taxiway lights, stop line lights, apron lighting, etc.

[0004] In order to individually control and monitor the status of aviation lights, communication with each light is required. However, since it is difficult to install additional cables on the airport runway floor and wireless communication is restricted due to the influence of radio navigation systems inherent to airport characteristics, power line communication utilizing the existing power supply lines for aviation lights is currently used for individual control and monitoring of fault status.

[0005] An example of technology related to aviation lighting is disclosed in the following patent documents 1 to 3, etc.

[0006] For example, the following patent document 1 discloses a smart LED aviation light with built-in communication function, characterized by comprising: an LED lamp module; an LED driver for turning the LED lamp module ON / OFF; a CPU for monitoring and controlling the operating status of the LED lamp module and the LED driver and notifying the communication unit of the status; and a communication unit (power line modem) for transmitting operating status information of the LED lamp module and the LED driver through a main control unit (MCU) and a power line.

[0007] In addition, Patent Document 2 below discloses a technology comprising: a plurality of aviation lighting communication terminals for controlling each of a plurality of aviation lights; a plurality of transformers connected to the plurality of aviation lighting communication terminals; a constant current regulator for supplying current to the transformers; a local controller for controlling the plurality of aviation lighting communication terminals; and a central server; wherein a CT for measuring current is provided between the plurality of transformers, and a high-voltage line of an aviation lighting communication terminal (IRU: ILCMS Remote Unit) connected to a transformer (TR) is installed to control aviation lights and passes through the CT to an aviation lighting communication terminal installed in the next aviation light, and at this time, a current value measured at the preceding aviation lighting communication terminal and a current value measured at the next aviation lighting communication terminal are compared to determine abnormalities such as surges or grounding of the high-voltage line connecting adjacent aviation lights when a fluctuation occurs.

[0008] Meanwhile, the following patent document 3 discloses a technology that can ensure the quality of power line communication by providing an integrated aviation lighting device comprising a lamp unit that receives power and lamp control commands from a power / communication unit capable of supplying power to a lamp installed in a runway and simultaneously controlling the on / off of the lamp, and a power / communication unit that outputs a predetermined AC power to the lamp unit, a lamp control unit that outputs a control command for controlling the on / off of the lamp to the lamp unit, and a CCR filter that is electrically connected to the constant current regulator on one side and connected to a coupling circuit that couples a power line signal output from the lamp control unit on the other side. Prior art literature

[0010] Korean Registered Patent Publication No. 10-2016595 (Registered Aug. 26, 2019) Korean Registered Patent Publication No. 10-2582138 (Registered Sep. 19, 2023) Korean Published Patent Publication No. 10-2016-0097560 (Published Aug. 18, 2016) The problem to be solved

[0011] While the technology disclosed in the aforementioned patent documents describes a technology capable of controlling the operation of lamps using power line communication, determining the presence of surges and abnormalities in high-voltage lines, or ensuring the quality of power line communication, it does not disclose a multi-frequency band aviation lighting control and monitoring system using power line communication that prevents interference in power line communication by utilizing power line communication of different frequency bands in relation to aviation lighting control, aircraft monitoring, operation control of runway monitoring cameras, and control of approach angle indicators that assist in the normal approach of aircraft, and can prevent safety accidents within the airport in advance by establishing a rapid monitoring and control process according to the operational purpose of the facilities.

[0012] In addition, conventional technology had the problem of incurring additional costs because installing additional equipment to identify between aircraft or between aircraft and vehicles during low-visibility operations required laying new communication lines.

[0013] The objective of the present invention is to solve the problems described above by providing an aviation lighting control and monitoring system using power line communication of multiple frequency bands, which can prevent interference in power line communication by utilizing power line communication of different frequency bands in relation to aviation lighting control, aircraft monitoring, operation control of runway monitoring cameras, and control of approach angle indicators that assist in the normal approach of aircraft.

[0014] Another objective of the present invention is to provide an aviation lighting control and monitoring system using power line communication in multiple frequency bands, which can effectively detect the entry of aircraft and vehicles during low visibility conditions and prevent safety accidents in advance by using power line communication signals in different frequency bands together without interference according to the importance and purpose of monitoring and control. means of solving the problem

[0016] To achieve the above objective, the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention comprises: a plurality of lamps; a constant current controller for supplying power to the lamps; a local control unit for controlling the constant current controller and electrically connected to a plurality of isolation transformers installed along the power line and a plurality of lamps; an individual lighting unit for controlling the operation and monitoring the status of each of the plurality of lamps and transmitting operation control signals and status signals of the lamps via power line communication; an individual monitor for controlling a monitoring device for acquiring video signals around an airport; and an individual detector for controlling a detection device excluding video signals to detect events occurring around an airport. It includes individual indicators for controlling display devices installed around the airport, wherein the individual lighting device generates operation control signals and status signals of the lamps to perform power line communication to the constant current controller through the first frequency band, and performs power line communication to the local control unit through a second frequency band higher than the first frequency band using at least one signal among the signals generated from the individual monitor, the individual detector, and the individual indicator, thereby simultaneously transmitting and receiving signals in the first frequency band and the second frequency band without interference between the first frequency and the second frequency.

[0017] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, the constant current controller is characterized by having a filter unit connected thereto that has a first frequency band filter and a second frequency band filter for filtering noise of the first frequency band and the second frequency band, respectively.

[0018] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, the constant current controller is characterized by having an individual controller electrically connected to it for transmitting and receiving information to control the individual lighting device, the individual detector, the individual monitor, and the individual indicator.

[0019] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, the individual controller is characterized by including a first frequency band controller for controlling the individual lighting device and a second frequency band controller for controlling the individual detector, the individual monitor, and the individual indicator.

[0020] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, at least one selected from the individual detector, the individual monitor, and the individual indicator comprises: a power supply unit for supplying power to any one of the individual detector, the individual monitor, and the individual indicator; a coupling unit electrically connected to the isolation transformer to perform coupling for amplification and transmission / reception of a control signal; a control unit for controlling the coupling unit to transmit / receive a signal through the coupling unit to the power line communication of the second frequency band; a communication unit for transmitting a signal to any one of the individual detector, the individual monitor, and the individual indicator, or transmitting a signal generated from any one of the individual detector, the individual monitor, and the individual indicator to the individual controller according to the control of the control unit; and a channel card for checking the status of any one of the individual detector, the individual monitor, and the individual indicator and transmitting data information to the control unit according to the control of the control unit. Effects of the invention

[0022] As described above, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, by using power line communication of different frequency bands in relation to aviation lighting control, aircraft monitoring, operation control of runway monitoring cameras, and control of approach angle indicators that assist in the normal approach of aircraft, the effect of preventing interference in power line communication is obtained.

[0023] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, by using power line communication signals of different frequency bands that do not cause interference depending on the importance and purpose of monitoring and control, the effect of effectively identifying whether aircraft and vehicles are entering during low visibility conditions is obtained, thereby preventing safety accidents in advance.

[0024] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, by using multiple frequency bands, it is possible to prevent collision situations under any weather conditions along with an increase in air traffic volume, reduce the workload of air traffic controllers and pilots, and maintain a safe ground traffic flow, thereby ensuring the safety and efficiency of ground air traffic, and the effect of reducing the cost of laying new communication lines is obtained by using communication utilizing existing power lines.

[0025] In addition, according to the aviation lighting control and monitoring system using power line communication of multiple frequency bands according to the present invention, the status of the detection and monitoring devices can be grasped at a glance through the control computer UI, allowing the controller to quickly and accurately assess the situation, and by displaying detection events of objects such as vehicles and aircraft as symbols on a map, the safety and efficiency of ground traffic can be significantly improved. Brief explanation of the drawing

[0027] FIG. 1 is a schematic diagram of an aviation lighting control and monitoring system according to an embodiment of the present invention. FIG. 2 is a conceptual diagram of the connection of individual sensors, individual monitors, and individual indicators according to the present invention. FIGS. 3 to 5 are schematic block diagrams of individual detectors, individual monitors, and individual indicators according to embodiments of the present invention. FIG. 6 is a detailed block diagram of an individual detector according to an embodiment of the present invention. FIG. 7 is a detailed block diagram of an individual monitor according to an embodiment of the present invention. FIG. 8 is a detailed block diagram of an individual indicator according to an embodiment of the present invention. Specific details for implementing the invention

[0028] The above and other objects and novel features of the present invention will become more apparent from the description in this specification and the accompanying drawings.

[0029] The size and thickness of each component shown in the description and drawings of the present invention are depicted arbitrarily for convenience of explanation, and therefore the present invention is not necessarily limited to what is illustrated. Additionally, thicknesses have been enlarged in the drawings to clearly represent various layers and regions, and the thickness of some layers and regions has been exaggerated for convenience of explanation.

[0030] In the description of the invention, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0031] The terms “part,” “module,” or “part” as used herein perform at least one function or operation and may be implemented as hardware or software consisting of mechanical or electrical / electronic configurations, or as a combination of hardware and software; and a plurality of “parts,” “modules,” or a plurality of “parts” may be integrated into at least one module and implemented by at least one processor, except for the “parts,” “modules,” or “parts” that need to be implemented in specific hardware.

[0032] According to one embodiment of the present disclosure, a ‘module’ or ‘part’ may be implemented as a processor and memory. The term ‘processor’ should be broadly interpreted to include a general-purpose processor, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a controller, a microcontroller, a state machine, etc. In some environments, the term ‘processor’ may refer to an application-specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. The term ‘processor’ may also refer to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors combined with a DSP core, or any other combination of such configurations. Additionally, the term ‘memory’ should be broadly interpreted to include any electronic component capable of storing electronic information. 'Memory' may refer to various types of processor-readable media, such as Random Access Memory (RAM), Read-Only Memory (ROM), Non-Volatile Random Access Memory (NVRAM), Programmable Read-Only Memory (PROM), Erasable-Programmable Read-Only Memory (EPROM), Electrically Erasable PROM (EEPROM), Flash Memory, Magnetic or Marked Data Storage Devices, Registers, etc. If a processor can read information from memory and / or write information to memory, the memory is said to be in an electronic communication state with the processor. Memory integrated into a processor is in an electronic communication state with the processor.

[0033] Furthermore, as used herein, the term ILCMS (Individual Lighting Control and Monitoring System) refers to a system implemented to individually control and monitor lights installed on airport runways. The hardware configuration involves installing individual lighting units for each light and equipping constant current supply units with local controllers to control and monitor the lights. In this case, Power Line Communication Technology (PLT), which enables both power supply and communication, may be applied to the ILCMS. The software configuration of the ILCMS may include systems that provide functions such as ATC HMI, Remote HMI, Maintenance HMI, Runway Taxiway Lighting Control, and Stop Bar Control.

[0034] The primary functions of such an ILCMS may include a control function that directly controls the on / off switching of aviation lights, a routing function, a guidance function, and a monitoring function for the maintenance of the lights. The control function can perform selective control by direction or zone, moving away from the existing circuit-based group control method for safe and efficient operation. The routing function can provide route planning to aircraft pilots by offering designated paths based on selective lighting, enabling safe and efficient movement. The guidance function can provide continuous and reliable warnings through the interconnected control of stop lines and taxiway centerlines, while the surveillance function can monitor accurate lighting rates by circuit and group, as well as continuously monitor multiple lights.

[0035] Meanwhile, Power Line Communication (PLC) transmits data and voice via frequency signals over power lines that supply power, and can transmit data and voice through multiple frequency bands.

[0036] In the present invention, power line communication can transmit signals of a first frequency band and a second frequency band higher than the first frequency, either separately or simultaneously. In this case, the first frequency band may be a low-speed power line communication frequency band, and the second frequency band may be a high-speed power line communication frequency band.

[0037] For example, low-speed power line communication can be communicated using various modulation / demodulation methods, such as FSK, ASK, and PSK, using frequencies in the range of several kHz to several hundred kHz, and high-speed power line communication can be communicated using various modulation / demodulation methods, such as OFEM and PSK, using communication frequencies of several MHz or more.

[0038] Generally, lamps installed on airport runways are connected in series in multiple units and designed to be grouped together and controlled by a constant current controller. To turn these lamps on and off, tens of kilometers of power lines must be buried along the runway. Additionally, while communication lines must also be buried, it is difficult to install separate lines due to construction challenges, time constraints, and costs. Furthermore, even for wireless communication, the use of power lines is essential considering connection reliability and the unique characteristics of an airport.

[0039] When using power line communication, if the same frequency band is used for ramp control, runway surveillance cameras, aircraft control, and monitoring the movement of vehicles or personnel essential to airports, there may be problems due to communication delays, interruptions, and reduced transmission speeds caused by traffic.

[0040] In addition, performing lamp control, CCTV control, foreign object detection sensor control, and indicator light control using a single frequency band may cause problems with transmission speed due to the increased load on power line communication.

[0041] Accordingly, the present invention solves these problems by using multiple frequency bands individually or simultaneously to monitor, guide, and control movement on the runway, thereby effectively and quickly confirming whether aircraft and vehicles have entered without affecting communication delay, interruption, or transmission speed, and thus preventing safety accidents in advance.

[0043] FIG. 1 is a schematic diagram of an aviation lighting control and monitoring system according to an embodiment of the present invention, and FIG. 2 is a conceptual diagram of the connection of individual detectors, individual monitors, and individual displays according to the present invention. FIG. 3 to 5 are schematic block diagrams of individual detectors, individual monitors, and individual displays according to an embodiment of the present invention, and FIG. 6 to 8 are detailed block diagrams of individual detectors, individual monitors, and individual displays, respectively.

[0044] Referring to FIGS. 1 and 2, an aviation lighting control and monitoring system (100) according to an embodiment of the present invention comprises a control server (110), a control computer (120), a local control unit (130), a constant current controller (140), and individual lights (150). Additionally, the system (100) includes individual monitors (300), individual detectors (400), and individual indicators (500) connected in series to the constant current controller (140).

[0045] The control computer (120) controls the overall operation of the system (100) together with the control server (110). For example, the control computer (120) can control the entire system (100) through aircraft takeoffs and landings, radar information, weather information, runway information, etc. In this case, a manual control panel (not shown) for controlling the system (100) in the event of a malfunction in the control computer (120) may be included in the system (100). The control computer (120) and the control server (110) may be connected via TCP / IP, and the control computer (120) and the control server (110) are connected through a local control unit (130) and a gateway (150).

[0046] The control computer (120) is designed to allow intuitive checking of the status of monitoring and detection devices on a user interface (UI). The UI map is based on the layout of the runway and surrounding areas, and the location and status of individual detectors (400), individual monitors (300), and individual indicators (500) are displayed as symbols. These symbols reflect the status of the devices in real time, and when a user clicks a specific symbol, detailed information about the device is displayed. For example, real-time video from CCTVs, infrared cameras, thermal cameras, etc., connected to the monitoring devices is provided in a pop-up window, and when a vehicle or aircraft is detected using a detection device, the location is displayed as a symbol on the UI map along with relevant information. Real-time status checking visually displays the current operating status (normal / abnormal) of each detector and monitor.

[0047] With an intuitive user interface, the user can click a symbol to view a surveillance screen (CCTV / thermal image screen, etc.) and view the status of the device in detail. When a vehicle or airplane is detected by the detection device, the symbol and location of the object are displayed in real time on the UI map. Through this, the system (100) of the present invention supports the controller in responding quickly.

[0048] When the device selected for the monitoring screen display is connected to a monitoring device (CCTV, thermal imaging camera, etc.), the screen is displayed in real-time on the control computer (120) screen, allowing monitoring of the conditions of the runway, taxiway, or specific area within the airport. When the detection device is activated via the detection status display, the status of detection can be immediately confirmed through the symbols displayed on the UI. This allows for the rapid identification of abnormal situations or the occurrence of specific events within the airport.

[0049] The provision of comprehensive information allows detailed device information (device ID, location information, status of connected sensors or displays, etc.) to appear in pop-up windows or on separate screens, enabling efficient response. Such a UI-based system enables intuitive information provision and efficient situational response, thereby reducing the workload of controllers and contributing to the improvement of runway and taxiway safety.

[0050] The above control computer (120) controls the on / off operation of individual lamps (160) through a local control unit (130) and a constant current controller (140), and by adopting a GUI, it can display the movement of the aircraft and the on / off operation of the lamps (160) to enable efficient monitoring and control. In addition, the above control computer (120) controls the operation and signal transmission of individual monitors (300), individual detectors (400), and individual indicators (500) through a local control unit (130) and a constant current controller (140), thereby preventing safety accidents in advance through monitoring the area around the airport runway or taxiway.

[0051] The above local control unit (130) is provided in multiple units and is connected to the control server (110) and the control computer (120) through the gateway (150). Each of the provided local control units (130) controls a constant current controller (140) and is electrically connected to a plurality of isolation transformers (170) and a plurality of lamps (160) installed along the power line. The local control unit (130) controls and monitors the on / off operation of the constant current controller (140), the supply current, and the status of the constant current controller (140), and can control and monitor individual lamps (160) by communicating with individual lights (150) installed on the runway. In addition, the local control unit (130) controls the monitoring device (310), detection device (410), and display device (510) to detect movement signals and movements around the airport through the individual monitor (300), individual detector (400), and individual indicator (500), thereby providing visual descent guidance information to aircraft approaching the airport or preventing safety accidents in advance by ensuring smooth traffic of aircraft or vehicles moving around the airport and detecting foreign objects.

[0052] The above constant current controller (140) is controlled to turn on / off by a control server (110) or a control computer (120), and can adjust the brightness of the lamp (160) by adjusting the amount of current supplied to the lamp (160) according to a control signal. The above constant current controller (140) supplies current corresponding to the brightness level of each of the plurality of lamps (160) to each of the plurality of individual lights (150) through a plurality of isolation transformers (170) corresponding to each of the plurality of lamps (160). In this case, the individual lights (150) can turn on or off each of the plurality of lamps (160) to a brightness corresponding to the brightness level according to the current corresponding to the brightness level supplied from the constant current controller (140).

[0053] Additionally, the constant current controller (140) can supply power to each of the individual monitor (300), individual detector (400), and individual indicator (500) through a plurality of isolation transformers (170). The individual monitor (300) supplies power to a monitoring device (310) for acquiring images, such as a CCTV, a thermal imaging camera, or an infrared camera. The individual detector (400) controls a detection device (410) including various sensors and is configured to detect the presence of a vehicle or aircraft on a runway and taxiway.

[0054] The detection device (410) may include an infrared sensor, a radar sensor, an ultrasonic sensor, or an image analysis-based AI sensor, and may use this to detect the presence or absence of aircraft and ground vehicles located on the runway and taxiway, and transmit the information to the control server (110) and the control computer (120) via an individual controller (600). In addition, the detection device (410) may track the movement of an aircraft or vehicle at a specific location in real time, thereby supporting the controller in intuitively understanding the aircraft's movement path or the vehicle's location.

[0055] The individual indicator (500) above may be a display device (510) for providing information to an aircraft or vehicle operating on a runway or taxiway, for example, an LED display, and may be a Precision Approach Path Indicator (PAPI) for providing visual descent guidance information to an aircraft approaching an airport.

[0056] Meanwhile, the constant current controller (140) can remove signal noise through the filter unit (700). The filter unit (700) is installed between the constant current controller (140) and the individual equalizer (150) and performs the role of ensuring the reliability of communication by removing noise during power line communication. The filter unit (700) is equipped with a first frequency band filter (710) and a second frequency band filter (720) for filtering noise in the first frequency band and the second frequency band, respectively.

[0057] From this, the constant current controller (140) can transmit and receive on / off operation signals, malfunction signals, etc. of the lamp (160) from individual lights (150) without noise through the filter unit (700), and can transmit and receive on / off operation signals of the detection device (410), monitoring device (310), and display device (510) without noise.

[0058] In this case, the signal transmitted and received by the lamp (160) may be a signal having a first frequency band, and the signal transmitted and received by the detection device (410), monitoring device (310), and display device (510) may be a signal having a second frequency band having a higher speed and a higher band than the first frequency. The signal detected through the detection device (410), monitoring device (310), and display device (510) is transmitted to an individual controller (600) through the individual detector (400), individual monitor (300), and individual display (500), respectively, and the individual controller (600) can transmit the detection signal to the control server (110) or control computer (120) to minimize signal delay and communication interference. Accordingly, the system (100) can transmit and receive signals from the lamp (160), the detection device (410), the monitoring device (310), and the display device (510) via power line communication according to different frequency bands.

[0059] Meanwhile, an individual controller (600) is electrically connected to the filter unit (700) to control an individual light source (150), an individual detector (400), an individual monitor (300), and an individual indicator (500), and the individual controller (600) may be installed for each constant current controller (140). The individual controller (600) can control the on / off operation of the constant current controller (140) separately from the control computer (120) or manual control panel (not shown), and can adjust the brightness of the lamp by adjusting the amount of current provided to the lamp (160) in multiple grades (B1, B2, B3, B4, B5) according to the control signal.

[0060] The individual controller (600) transmits and receives information to and from individual detectors (400), individual monitors (300), individual indicators (500), and individual lights (150) using power line communication. Generally, since aircraft frequently take off and land at airports, there is a problem in that it is very difficult to repair or install new systems on the runway. In order to solve this problem, the present invention utilizes a power line communication method that does not require the installation of a separate communication line for controlling individual detectors (400), individual monitors (300), individual indicators (500), and individual lights (150).

[0061] Additionally, the individual controller (600) stores identifier information regarding the individual detector (400), individual monitor (300), individual indicator (500), and individual light (150), information regarding the detection device (410) connected to the individual detector (400), information regarding the monitoring device (310) connected to the individual monitor (300), information regarding the display device (510) connected to the individual indicator (500), and information regarding whether there is an abnormality in the lamp (160) connected to the individual light (150). In this case, the identifier information can use the product number of a power line communication modem, which is typically composed of about 10 characters. Preferably, by newly designating and storing a separate identifier, such as a serial number, that matches the product number, the amount of traffic unnecessarily consumed during communication can be reduced.

[0062] The individual controller (600) also stores information regarding the relay operation of the individual detector (400), individual monitor (300), individual indicator (500), and individual light source (150), and stores information regarding the constant current controller (140) which controls the individual detector (400), individual monitor (300), individual indicator (500), and individual light source (150).

[0063] The individual controller (600) stores location information (latitude, longitude, path information and sequence number on the movement path) regarding each detection device (410), monitoring device (310), display device (510), and lamp (160), and also stores information on stop bars located at intersections. The sequence number on the movement path may be information such as, for example, "the first lamp among the left lights of runway 1", "the first display device among the detection, monitoring, and display devices at intersection point A of runway 2".

[0064] The individual controller (600) controls and monitors the status of individual detectors (400), individual monitors (300), individual indicators (500), and individual lights (150) through a plurality of frequency bands, for example, a first frequency band controller (610) and a second frequency band controller (620). In this case, the first frequency band controller (610) monitors and controls the status of the individual lights (150), and the second frequency band controller (620) controls the individual detectors (400), individual monitors (300), and individual indicators (500), and transmits and receives data information to the control server (110) and the control computer (120).

[0065] Next, the configuration of the individual detector (400), individual monitor (300), and individual indicator (500) will be described in more detail.

[0066] Referring to FIGS. 3 to 8, individual detectors (400), individual monitors (300), and individual indicators (500) according to embodiments of the present invention each include a power supply unit (320, 420, 520), a coupling unit (330, 430, 530), a communication unit (340, 440, 540), a control unit (350, 450, 550), a storage unit (360, 460, 560), and a channel card (370, 470, 570). The power supply unit (320, 420, 520) transmits power provided from an isolation transformer (170) to the individual detectors (400), individual monitors (300), and individual indicators (500). The above coupling unit (330, 430, 530) is connected to an isolation transformer (170) to perform coupling for transmitting and receiving data and signals.

[0067] The coupling unit (330, 430, 530) is configured to include a coupler (331, 431, 531), a filter (332, 432, 532), a receiving amplifier (333, 433, 533), and a transmitting amplifier (334, 434, 534). The coupler (331, 431, 531) performs the role of coupling the isolation transformer (170) and the communication unit (340, 440, 540), and the filter (332, 432, 532) filters the output signal of the coupler (331, 431, 531). The receiving amplifier (333, 433, 533) performs the role of amplifying the output of the filter (332, 432, 532) to amplify the received signal to a certain size when the received signal is weak, and the transmitting amplifier (334, 434, 534) amplifies the transmission signal output from the power line communication module (341, 441, 541) of the communication unit (340, 440, 540). When the individual detector (400), individual monitor (300), and individual indicator (500) operate in relay mode, the individual detector (400), individual monitor (300), and individual indicator (500) perform the role of amplifying the transmission signal to a certain size so that the transmission signal output from the power line communication module (341, 441, 541) can be smoothly received.

[0068] The communication unit (340, 440, 540) is preferably configured to include a power line communication module (341, 441, 541), but may be configured with other communication modules or modems, and the power line communication module (341, 441, 541) enables the control unit (350, 450, 550) to perform power line communication with an individual controller (600).

[0069] The above control unit (350, 450, 550) digitally demodulates data and signals received through the coupling unit (330, 430, 530), outputs data and signals obtained through the detection device (410), monitoring device (310), and display device (510) through the coupling unit (330, 430, 530), and amplifies the transmission output to control serially connected devices according to the received data and signals to perform relay mode operation.

[0070] The above control unit (350, 450, 550) may be composed of a microcomputer (351, 451, 551), and the microcomputer (351, 451, 551) controls the channel card (370, 470, 570) to check the status (status of normal operation, etc.) of the detection device (410), the monitoring device (310), and the display device (510), transmits data information of the detection device (410), the monitoring device (310), and the display device (510) to the communication unit (340, 440, 540), and, if necessary, controls the power line communication module (341, 441, 541) to perform a signal amplification function according to the relay mode. In some cases, the operation of the relay mode controls the power line communication module (341, 441, 541) to immediately bypass and relay the analog signal, or to immediately demodulate and modulate the unit information (e.g., when one frame is received) when it is received to process the relay.

[0071] The above storage unit (360, 460, 560) is equipped with a memory device (361, 461, 561) and stores the status of normal operation of the detection device (410), monitoring device (310), and display device (510), data information, etc., according to the control of the control unit (350, 450, 550). The above channel card (370, 470, 570) controls the detection device (410), monitoring device (310), and display device (510) and transmits and receives data and signals.

[0073] Although the invention made by the inventors has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the gist thereof. Industrial applicability

[0075] By using an aviation lighting control and monitoring system utilizing power line communication in multiple frequency bands according to the present invention, the transmission and reception signals required by individual lights, individual detectors, individual monitors, and individual indicators are operated via power line communication in different frequency bands, thereby enabling the monitoring and control of airport runways and the safe navigation of aircraft. Explanation of the symbols

[0076] 100: System 110: Control Server 120: Control computer 130: Local control unit 140: Constant current controller 150: Individual equalizer 300: Individual monitor 310: Monitoring device 400: Individual detector 410: Detector 500: Individual indicator 510: Display device 320, 420, 520: Power supply section 330, 430, 530: Coupling section 340, 440, 540: Communication unit 350, 450, 550: Control unit 360, 460, 560: Storage units 370, 470, 570: Channel cards

Claims

Claim 1 An aviation lighting control and monitoring system using power line communication utilizing a first frequency band and a second frequency band, comprising: a plurality of lamps; a constant current controller for supplying power to the lamps; a local control unit for controlling the constant current controller and electrically connected to a plurality of isolation transformers installed along the power line and a plurality of lamps; an individual lighting unit for controlling the operation and monitoring the status of each of the plurality of lamps and transmitting operation control signals and status signals of the lamps via power line communication; an individual monitor for controlling a monitoring device for acquiring video signals around the airport; and an individual detector for controlling a detection device excluding video signals to detect events occurring around the airport.It includes individual indicators for controlling display devices installed around the airport, wherein the individual lighting unit generates operation control signals and status signals of the lamps and performs power line communication to the constant current controller through the first frequency band, and performs power line communication to the local control unit through a second frequency band higher than the first frequency band by transmitting at least one signal among the signals generated from the individual monitor, the individual detector, and the individual indicator to the local control unit, thereby simultaneously transmitting and receiving signals of the first frequency band and the second frequency band without interference between the first frequency and the second frequency, and the constant current controller is connected to a filter unit having a first frequency band filter and a second frequency band filter for filtering noise of the first frequency band and the second frequency band, respectively, and the constant current controller is electrically connected to an individual controller that transmits and receives information to control the individual lighting unit, the individual detector, the individual monitor, and the individual indicator, and the individual controller includes a first frequency band controller for controlling the individual lighting unit and A second frequency band controller for controlling the individual detector, the individual monitor, and the individual indicator, wherein at least one selected from the individual detector, the individual monitor, and the individual indicator is a power supply unit for supplying power to any one of the individual detector, the individual monitor, and the individual indicator; a coupling unit electrically connected to the isolation transformer to perform coupling for amplification and transmission / reception of a control signal; a control unit for controlling the coupling unit to transmit / receive a signal through the coupling unit to the power line communication of the second frequency band; and a communication unit for transmitting a signal to any one of the individual detector, the individual monitor, and the individual indicator, or transmitting a signal generated from any one of the individual detector, the individual monitor, and the individual indicator to the individual controller according to the control of the control unit.An aviation lighting control and monitoring system using power line communication of multiple frequency bands, characterized by including a channel card that checks the status of any one of the individual detector, the individual monitor, and the individual indicator according to the control of the control unit and transmits data information to the control unit. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete

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