Beacon monitoring system using luminous intensity

Abstract

The present invention relates to a beacon monitoring system using luminous intensity. Disclosed is a beacon monitoring system using luminous intensity, comprising: a camera that obtains image information including light emitted from a beacon; a storage unit storing initial luminous intensity information of the light emitted when the beacon is initially turned on, and expected luminous intensity information of the light according to an accumulated lighting time of the beacon; a light analysis unit that measures the luminous intensity of the light included in the image information transmitted from the camera; and a control unit that compares the measured luminous intensity of the light included in the image information with the expected luminous intensity information to determine an expected replacement time, wherein it is possible to determine whether the luminous intensity of the light emitted from the beacon is within a standard luminous intensity range corresponding to the light range of the beacon, or to determine a replacement time of the beacon on the basis of the luminous intensity.

Description

Lighthouse monitoring system using luminous intensity

[0001] The present invention relates to a lighthouse monitoring system using light intensity, wherein the light intensity of light emitted from a lighthouse is measured to determine whether it is within a standard light intensity range corresponding to the light range of the lighthouse, or the time for replacing the lighthouse is determined through the light intensity.

[0002] A lighthouse lamp refers to a light that emits light inside a lighthouse at sea, and to manage visibility, periodic inspections regarding luminosity are conducted every four years in accordance with the inspection standards for equipment and supplies of the Ministry of Oceans and Fisheries.

[0003] When lighthouses installed on-site are small-sized, they are disassembled and collected for measurement in the indoor facilities of specialized institutions such as testing and inspection centers; however, for medium or large-sized lighthouses, since disassembly and collection are difficult, measurements are taken on-site using measuring lines.

[0004] Furthermore, since measurements must be taken at a certain distance from the lighthouse during on-site measurement, measurement vessels are utilized due to environmental concerns. However, when measuring directly while aboard a vessel, there is a possibility of precision issues arising from the influence of currents or wind, as well as cost and safety issues related to operating the vessel.

[0005] In addition, the measurement method using a measuring line has been implemented in the same way for over 10 years, and there is a need for a convenient and safe measurement method to improve this.

[0006] Meanwhile, the method for measuring the luminous intensity of a lantern in an outdoor environment is as follows. A standard light source, whose luminance and intensity have been measured indoors prior to the lantern being measured, is installed near the lantern. The luminance is then measured using expensive luminance meter equipment, and the luminous intensity characteristics are analyzed by comparing the relative values ​​of the two light sources. This analysis method presents difficulties in providing real-time information on the luminance and intensity of the lantern because it requires measuring data and manually converting it into luminous intensity values.

[0007] Furthermore, this measurement method requires expensive luminance equipment, and in situations where continuous measurement is necessary, it demands a significant amount of time and effort from the operator.

[0008] The present invention was devised to solve the aforementioned conventional problems and aims to provide a lighthouse monitoring system capable of capturing an image containing light emitted from a lighthouse, measuring the luminous intensity of the light included in the image information, determining whether it is within a standard luminous intensity range corresponding to the lighthouse's range of light, or determining the time to replace the lighthouse based on the measured luminous intensity.

[0009] The lighthouse monitoring system using light intensity according to the present invention for achieving the above-mentioned purpose is characterized by comprising: a camera that acquires image information including light emitted from a lighthouse; a storage unit that stores initial light intensity information of the light emitted when the lighthouse is first lit and predicted light intensity information of the light according to the cumulative lighting time of the lighthouse; a light analysis unit that measures the light intensity of the light included in the image information transmitted from the camera; and a control unit that determines the expected replacement time by comparing the measured light intensity of the light included in the image information with the predicted light intensity information.

[0010] It is preferable that the storage unit further stores standard light intensity range information corresponding to the light range set in the light lamp, and the control unit receives the standard light intensity range information from the storage unit and determines to replace it if the measured light intensity is less than or equal to the minimum value of the standard light intensity range.

[0011] It is preferable that the control unit sets an allowable error range for the measured light intensity relative to the estimated light intensity for each accumulated lighting time, receives accumulated lighting time information from the light source, determines that an inspection is required if the measured light intensity exceeds the allowable error range, and generates an inspection notification signal.

[0012] The lighthouse monitoring system using the light intensity of the present invention has the advantage of being able to monitor the lighting operation status, including the expected replacement time of the lighthouse, by measuring the light intensity of the lighthouse and comparing and analyzing the measured light intensity with expected light intensity information based on the accumulated lighting time of the lighthouse.

[0013] In addition, the lighthouse monitoring system using the light intensity of the present invention collects and analyzes optical data information of the lighthouse and predicts the time at which it can be lit with a light intensity suitable for the light range, thereby enabling maintenance and follow-up measures for the lighthouse.

[0014] FIG. 1 is a block diagram of a lighthouse monitoring system using light intensity according to one embodiment of the present invention, and

[0015] FIG. 2 is a flowchart illustrating the monitoring process of a lighthouse using a lighthouse monitoring system utilizing the luminous intensity of FIG. 1, and

[0016] Figure 3 is a graph of the expected luminous intensity according to the cumulative lighting time of the lighthouse under inspection, and

[0017] FIG. 4 is a drawing of a lighthouse monitoring system using light intensity according to another embodiment of the present invention, and

[0018] FIG. 5 is a block diagram of the drone of the lighthouse monitoring system of FIG. 4, and

[0019] FIG. 6 is a block diagram of the drone controller of the lighthouse monitoring system of FIG. 4, and

[0020] Figure 7 is a block diagram of the management terminal of the lighthouse monitoring system of Figure 4.

[0021] Hereinafter, a light bulb monitoring system using light intensity according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0022] FIGS. 1 to 3 illustrate a light bulb monitoring system (7) using light intensity according to one embodiment of the present invention.

[0023] A light bulb monitoring system (7) using light intensity according to one embodiment of the present invention comprises a camera (10), a storage unit (20), a light analysis unit (30), a control unit (40), a communication unit (50), and a management terminal unit (60).

[0024] The camera (10) captures image information including light emitted from the light source while facing the light source (not shown) mounted on the light source (5) within a preset distance range from the light source (5) to be inspected.

[0025] The camera (10) may be configured as an independent unit or may be installed on one side of a ship, vehicle, or drone. Additionally, the camera (10) may be a high-resolution optical camera for photographing objects located at a distance and measuring optical characteristic data corresponding to various optical performances related to light emitted from an inspection target light source.

[0026] The camera (10) may acquire corresponding image information from a certain height above the water surface or ground by control of a ship, vehicle or drone, etc.

[0027] The camera (10) may be composed of one or more image sensors (or camera modules) so as to be able to capture the front, including the front, rear, side, downward, and upward directions of the shooting position. At this time, the camera (10) may be composed of a stereo camera, a depth camera, etc., capable of acquiring image information for all 360 degrees.

[0028] Additionally, the camera (10) acquires (or captures) image information (or video / a series of continuous still images acquired at a preset period or interval) including light radiated (or emitted) from the light source to be inspected within a preset distance range (e.g., the light range of the light source).

[0029] The light analysis unit (30) can measure light characteristic data including the light intensity of the light included in the image information transmitted from the camera (10).

[0030] Here, the optical characteristic data may include luminous flux related to the light emitted from the lighthouse under inspection (or luminous flux of the bulb (light source) used in the lighthouse under inspection), chromaticity (or including spectrum, chromaticity, etc. regarding the lens and color filter of the lighthouse under inspection), vertical divergence angle (or including light distribution and divergence angle, etc. regarding the vertical axis of the lighthouse under inspection), horizontal divergence angle (or light distribution and divergence angle test regarding the horizontal axis of the lighthouse under inspection), luminous intensity, light quality (or including time between light / flash, between dark, period, etc. according to light quality standards), daylight detector (or including illuminance for turning on / off depending on ambient brightness, etc.), measurement date and time information, etc.

[0031] In particular, the light analysis unit (30) measures the light intensity of the light included in the image information transmitted from the camera (10) (hereinafter referred to as the measured light intensity).

[0032] The light analysis unit (30) may be equipped with a photometer (luminance meter) for measuring the intensity of light and a color temperature meter or spectrometer for measuring the color temperature. Additionally, the light analysis unit (30) may include a function to generate additional light intensity information by measuring the distance of light, the diffusion of light, and the number of light sources.

[0033] To this end, the light analysis unit (30) may include a goniophotometer that measures the light distribution, and software tools such as Dialux or AGi32 that graphically represent the direction in which light is distributed from a light source.

[0034] Additionally, the light analysis unit (30) may include a laser distance measuring device for measuring the distance from the camera (10) to the light source.

[0035] Meanwhile, luminous intensity includes fixed intensity and effective intensity (or the effective intensity of the flash by measuring the instantaneous intensity of the lighthouse under inspection). Fixed intensity refers to the luminous intensity value when a constant intensity is maintained and there is no darkness for even a moment, while effective intensity refers to the luminous intensity value of the same quality that flashes due to rotation or blinking.

[0036] The measured light intensity measured by the light analysis unit (30) may be either static light intensity or effective light intensity, or may include both static light intensity and effective light intensity.

[0037] Meanwhile, the light source (5) has a light reach distance, which is the maximum distance that light emitted from the light source reaches, set according to the installation environment or purpose. That is, the light source (5) has an external size, type or number of light sources, lenses, etc., determined according to the set light reach distance so that light can be irradiated up to the set light reach distance.

[0038] And, the light bulb (5) must be able to emit light with a suitable intensity according to the set light range as shown in the tables below.

[0039] Luminous Range (NM) Suitable Floating Luminous Intensity (cd)f Suitable effective light intensity (cd) e )Remarks 3 2 1 1 5 Flashing light 5 1 0 8 7 7 7 3 7 8 2 7 0 9 1,1 4 8 8 2 0 1 1 3,0 8 0 2,2 0 1 5 1 9,6 0 1 4,0 0 1 8 6 8,6 0 4 9,0 0 2 2 5 0,0 0 1 1 0,000 Rotary light 2 6 3,000,000 1,2 0,000 2 7 3,500,000 1,800,000

[0040] The storage unit (20) stores data and programs necessary for the operation of the light analysis unit (30) and the control unit (40), which will be described later. That is, the storage unit (20) can store a number of application programs (or applications) running in the light analysis unit (30), data for the operation of the light analysis unit (30) and the control unit (40), and commands. At least some of these application programs may be downloaded from an external server via wireless communication. Alternatively, at least some of these application programs may exist on the light analysis unit (30) or the control unit (40) from the time of shipment for the basic functions of the light analysis unit (30) and the control unit (40).

[0041] Meanwhile, the application program is stored in the storage unit (20) and installed in the control unit (40), and can be driven by the control unit (400) to perform the operation (or function) of the light analysis unit (30).

[0042] Additionally, the storage unit (20) may be a Flash Memory Type, Hard Disk Type, Multimedia Card Micro Type, Card Type Memory (e.g., SD or XD memory), Magnetic Memory, Magnetic Disk, Optical Disk, RAM (Random Access Memory: RAM), etc., and is not limited to those presented as long as it can store data.

[0043] Additionally, the storage unit (20) stores image information, such as light emitted from a light source obtained through a camera (10) under the control of the control unit (30).

[0044] The storage unit (20) stores the initial light intensity information of the light emitted when the light bulb is first lit, and the predicted light intensity information of the light according to the cumulative lighting time of the light bulb as shown in FIG. 3. For example, the initial light intensity information of a search target light bulb with a light range of 3 NM may be a suitable floating light intensity of 21 cd and a suitable effective light intensity of 15 cd.

[0045] And, the storage unit (20) further stores standard light intensity range information corresponding to the light range set for the light lamp. The standard light intensity range of the light lamp to be searched is ±5% of the suitable finite light intensity or ±5% of the suitable effective light intensity corresponding to the set light range.

[0046] For example, the standard luminous intensity range of a search target lighthouse with a luminous range of 3 NM is ±5% of the suitable non-moving luminous intensity of 21 cd or ±5% of the suitable effective luminous intensity of 15 cd, as shown in the table above.

[0047] The communication unit (50) can establish a communication connection with any internal component or any at least one external terminal through a wired / wireless communication network. At this time, the external terminal may include a server (not shown), a terminal (not shown), etc.

[0048] Here, wireless internet technologies such as Wireless LAN (WLAN), DLNA (Digital Living Network Alliance), Wibro (Wireless Broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced), and Wireless Mobile Broadband Service (WMBS) may be applied, and the communication unit (120) transmits and receives data according to at least one wireless internet technology within a range that includes internet technologies not listed above.

[0049] In addition, short-range communication technologies may include Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Ultra Sound Communication (USC), Visible Light Communication (VLC), and Wi-Fi. Additionally, wired communication technologies may include Power Line Communication (PLC), USB communication, Ethernet, serial communication, and optical / coaxial cables.

[0050] In addition, the communication unit (50) may be configured to mutually transmit information with any terminal via a Universal Serial Bus (USB).

[0051] In addition, the communication unit (50) may transmit and receive wireless signals to and from a base station, the server, the terminal, etc. on a mobile communication network built according to technical standards or communication methods for mobile communication (e.g., GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTEA (Long Term Evolution-Advanced), etc.).

[0052] In addition, the communication unit (50) transmits image information, such as light emitted from the corresponding light source obtained through the camera (10), to the server, the terminal, etc., under the control of the control unit (30).

[0053] The control unit (30) may include RAM, ROM, CPU, GPU, and BUS (information transmission circuit), and RAM, ROM, CPU, GPU, etc. may be connected to each other through BUS.

[0054] The CPU of the control unit (30) can access the storage unit (20) and perform booting using the O / S stored in the storage unit (20), and can perform various operations using various programs, content, data, etc. stored in the storage unit (20).

[0055] Additionally, the control unit (30) collects the setting value of the corresponding camera (10) at the time of acquiring image information through the camera (10), the location information of the corresponding camera (110) at the time of acquiring image information, and weather information around the corresponding lighthouse at the time of acquiring image information.

[0056] Here, the setting value of the camera (10) (or the camera setting value at the time of shooting) includes exposure time, resolution, recording format, etc. Additionally, the location information of the camera (10) at the time of acquiring the image information includes height from the water surface (or ground), latitude and longitude collected by a GPS receiver (not shown) installed on the ship, vehicle, or drone, etc.

[0057] And, the control unit (30) receives the standard light intensity range information from the storage unit (20) and the measured light intensity (e.g., cd b ) is the minimum value (threshold) (cd) of the above standard luminous intensity range v It can be set to determine whether to replace if it is less than )

[0058] In addition, the control unit (30) can determine the expected replacement time by comparing the measured light intensity and the expected light intensity information included in the image information captured by the camera (10).

[0059] For example, referring to Fig. 3, the measured luminous intensity is cd a In this case, refer to the coordinate graph of the predicted luminous intensity information, and the threshold value (cd) of the standard luminous intensity range v The measured luminous intensity at the cumulative lighting time t4 reaching ) is cd a By subtracting the accumulated lighting time t2 corresponding to it, the remaining expected replacement time can be determined.

[0060] Additionally, the control unit (30) may set an allowable error range for the measured light intensity relative to the estimated light intensity for each accumulated lighting time. The allowable error range for the measured light intensity may be set to ±5% of the estimated light intensity corresponding to each accumulated time.

[0061] The control unit (30) receives accumulated lighting time information from the light source (5), and if the measured light intensity of the light included in the image information captured by the camera (10) is greater than the allowable error range (±5% or more of the expected light intensity corresponding to each accumulated time), it determines that an inspection is required and generates an inspection notification signal, which can then be transmitted to the management terminal (60) through the communication unit (50).

[0062] The management terminal (60) can be a portable terminal such as a smartphone, a telematics terminal, a navigation terminal, a personal computer, etc.

[0063] The operation of a lighthouse monitoring system using light intensity according to one embodiment of the present invention is described.

[0064] First, image information including light emitted from the light source (5) is obtained through the camera (10). (S01)

[0065] Then, using the light analysis unit (30), image information transmitted from the camera (10) is analyzed to generate light characteristic data including the measured light intensity of the light emitted from the light source (5). (S04)

[0066] The control unit (30) determines whether the measured light intensity measured by the light analysis unit (30) is within the standard light intensity range corresponding to the set light range of the light lamp (±5% of the suitable static light intensity or ±5% of the suitable moving light intensity corresponding to the set light range). (S05)

[0067] If the measured light intensity is within the standard light intensity range, the control unit (30) determines the expected replacement time by comparing the measured light intensity with the expected light intensity based on the accumulated lighting time of the light source installed in the light lamp. (S07)

[0068] Alternatively, if the measured light intensity deviates from the standard light intensity range, the control unit (30) determines that it is time to replace the light bulb (S06), and transmits the determined information to a management terminal unit including a management server or an administrator terminal (S10).

[0069] Based on the information displayed on the management terminal (60), the manager can perform maintenance and follow-up measures on the lighthouse.

[0070] Up until now, a lighthouse monitoring system using light intensity according to one embodiment of the present invention has the advantage of being able to monitor the lighting operation status, including the expected replacement time of the lighthouse, by measuring the light intensity of the lighthouse and comparing and analyzing the measured light intensity with expected light intensity information based on the accumulated lighting time of the lighthouse.

[0071] In addition, a lighthouse monitoring system using light intensity according to one embodiment of the present invention collects and analyzes optical data information of the lighthouse and predicts the time at which it can be lit with a light intensity suitable for the light range, thereby enabling maintenance and follow-up measures for the lighthouse.

[0072] Meanwhile, FIGS. 4 to 7 illustrate a lighthouse monitoring system using light intensity according to another embodiment of the present invention. Components having the same function as those in the drawings illustrated above are indicated by the same reference numerals, and a detailed description is omitted.

[0073] A lighthouse monitoring system using light intensity according to another embodiment of the present invention comprises a drone (100) equipped with a light analysis unit (30); a drone controller (200); and a management terminal (300).

[0074] The drone (100) is configured to communicate with a drone controller (200), a management terminal (300), etc.

[0075] The drone (100) moves (or flies) to a specific area according to flight scenarios or flight path information provided by the drone controller (200), collects various information related to the inspection target lighthouse in the specific area, and transmits and provides the collected various information back to the drone controller (200). At this time, the drone (100) can control various functions of the drone (100) in real time under the control of the drone controller (200).

[0076] The drone (100) may be composed of a main body (110), a rotor (120), a battery (130), a first communication unit (50), a first storage unit (20), a position measuring unit (160), a light analysis unit (30), and a first control unit (180).

[0077] The main body (110) may be made of a lightweight material, such as a metal or carbon or a resin material including urethane, having elastic restoring force. Four rotor blades (120) may be arranged in different directions on the main body (110) so as to be symmetrical with respect to those facing each other. The rotor blades (120) may be made of a metal or resin material having elastic restoring force.

[0078] The battery (130) may be built into the main body (110) or installed on one side. The battery (130) is installed in the drone (100) and supplies power to various components that require power.

[0079] The first communication unit (50) transmits and receives wireless signals to and from base stations, drone controllers (200), management terminals (300), etc., on the established mobile communication network.

[0080] In addition, the first communication unit (50) receives flight scenarios, unique identification information of the drone controller (200), etc. transmitted from the drone controller (200) under the control of the first control unit (180).

[0081] The first storage unit (20) may be cornered or built into one side of the main body (110). The first storage unit (20) stores flight scenarios received under the control of the first control unit (180), unique identification information of the drone controller (200), etc.

[0082] Additionally, the first storage unit (20) stores image information, such as light emitted from a light source obtained through the camera unit (10) under the control of the first control unit (180).

[0083] And, the first storage unit (20) stores initial light intensity information of the light emitted when the light bulb is first lit, and, as shown in FIG. 3, predicted light intensity information of the light according to the cumulative lighting time of the light bulb. For example, the initial light intensity information of a search target light bulb with a light range of 3 NM may be a suitable floating light intensity of 21 cd and a suitable effective light intensity of 15 cd.

[0084] Additionally, the first storage unit (20) further stores standard light intensity range information corresponding to the light range set for the light lamp. The standard light intensity range of the light lamp to be searched is ±5% of the suitable floating light intensity or ±5% of the suitable effective light intensity corresponding to the set light range.

[0085] The position measurement unit (160) receives a GPS signal transmitted from a satellite using a GPS receiver (not shown), generates first position data of the drone (400) in real time based on longitude and latitude coordinates included in the received GPS signal, and outputs the generated first position data to the drone control unit (180). Here, the generated first position data is defined as the current position (or current position data) of the drone (100). Here, location information may be received not only through a GPS receiver but also through Wi-Fi or Wibro communication.

[0086] In addition, the signal received through the GPS receiver may be configured to provide location information of the terminal to the drone (100) using wireless communication methods such as 802.11, a standard for wireless networks including wireless LAN and some infrared communication proposed by the IEEE (Institute of Electrical and Electronics Engineers); 802.15, a standard for wireless PAN (Personal Area Network) including Bluetooth, UWB, Zigbee, etc.; 802.16, a standard for wireless MAN (Metropolitan Area Network) including Fixed Wireless Access (FWA) and Broadband Wireless Access (BWA); and 802.20, a standard for mobile internet including Wireless MAN (Mobile Broadband Wireless Access: MBWA) including Wibro and WiMAX.

[0087] Additionally, the position measuring unit (160) collects position information of the drone (100) at the time of measuring optical characteristic data related to the lighthouse under inspection based on the received flight scenario. Here, the position information of the drone (100) at the time of measuring optical characteristic data includes height from the ground or sea level, latitude and longitude of the drone measured by a GPS receiver (not shown), and distance between the lighthouse under inspection and the drone (100).

[0088] The light analysis unit (30) is mounted on one side (or inside) of the main body (110).

[0089] The first control unit (180) executes overall control functions of the drone (100) using programs and data stored in the first storage unit (20). The first control unit (180) may include RAM, ROM, CPU, GPU, and BUS connected to each other via BUS. The CPU can access the drone storage unit (150) and perform booting using the O / S stored in the first storage unit (20), and can perform various operations using various programs, content, data, etc. stored in the first storage unit (20). Here, control functions related to the drone (100) may include general drone functions such as flight and attitude control.

[0090] In addition, the first control unit (180) receives flight scenarios transmitted from the drone controller (200), unique identification information of the drone controller (200), etc., through the first communication unit (50).

[0091] At this time, the first control unit (180) may determine whether to apply the received flight scenario based on the unique identification information of the received drone controller (200) (or the unique identification information of the drone (100)). That is, the drone control unit (180) determines (or confirms) whether the unique identification information of the received drone controller (200) is included in the unique identification information of one or more drone controllers that are pre-stored (or registered) in the corresponding drone storage unit (150). At this time, the first control unit (180) may determine whether the unique identification information of the received drone (100) is identical (or matches) to the unique identification information of the drone (100).

[0092] If, as a result of judgment (or verification), the unique identification information of the received drone controller (200) is included in the unique identification information of one or more drone controllers that have been previously registered, the first control unit (180) determines that the received flight scenario is valid.

[0093] Additionally, if, as a result of judgment (or verification), the unique identification information of the received drone controller (200) is not included in the unique identification information of one or more previously registered drone controllers (200), the drone control unit (180) determines that the received flight scenario is invalid and discards (or deletes) the received flight scenario.

[0094] Additionally, the first control unit (180) takes off according to the departure time information based on the received flight scenario and flies to the destination. At this time, the first control unit (180) determines whether there is an obstacle during flight and configures the drone (100) to fly safely by resetting the flight path based on the presence of the obstacle.

[0095] And, the first control unit (180) receives the standard light intensity range information from the first storage unit (20) and the measured light intensity (e.g., cd b ) is the minimum value (threshold) (cd) of the above standard luminous intensity range v It can be set to determine whether to replace if it is less than )

[0096] In addition, the first control unit (180) can determine the expected replacement time by comparing the measured light intensity and the expected light intensity information included in the image information captured by the camera (10).

[0097] Additionally, the first control unit (180) may set an allowable error range for the measured light intensity relative to the estimated light intensity for each accumulated lighting time. The allowable error range for the measured light intensity may be set to ±5% of the estimated light intensity corresponding to each accumulated time.

[0098] The first control unit (180) receives accumulated lighting time information from the light source (5), and if the measured light intensity of the light included in the image information captured by the camera (10) is greater than the allowable error range, it determines that an inspection is required and generates an inspection notification signal, which can be transmitted to the drone controller (200) and the management terminal (300) through the first communication unit (40).

[0099] The drone controller (200) communicates with the drone (100), the management terminal (300), etc. Additionally, the drone controller (200) generates flight scenarios for the flight functions of the drone (100) linked with the drone controller (200), and for the measurement / collection functions of various information related to the lighthouse, and provides the generated flight scenarios to the drone (100). At this time, the drone controller (200) can control various functions of the drone (100) in real time.

[0100] The drone controller (200) may be composed of a second communication unit (210), a second storage unit (220), a controller display unit (230), and a second control unit (240).

[0101] The second communication unit (210) establishes a communication connection with any internal component or any at least one external terminal through a wired / wireless communication network. At this time, any external terminal may include a drone (100), a management terminal (300), etc. The second communication unit (210) transmits a flight scenario, unique identification information of the drone controller (200), etc., to the drone (100) under the control of the second control unit (240).

[0102] Additionally, the second communication unit (210) receives optical characteristic data related to the inspection target light source transmitted from the drone (100) under the control of the second control unit (240), location information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0103] The second storage unit (220) stores various user interfaces (UI), graphic user interfaces (GUI), etc.

[0104] Additionally, the second storage unit (220) stores data and programs necessary for the operation of the drone controller (200). That is, the second storage unit (220) can store multiple applications running on the drone controller (200), data for the operation of the drone controller (200), and commands. At least some of these applications may be downloaded from an external server via wireless communication. Additionally, at least some of these applications may exist on the drone controller (200) from the time of shipment for the basic functions of the drone controller (200).

[0105] Meanwhile, the application program is stored in the second storage unit (220) and installed in the drone controller (200), and can be driven by the second control unit (240) to perform the operation (or function) of the drone controller (200).

[0106] Additionally, the second storage unit (220) stores optical characteristic data related to the inspection target light source received under the control of the second control unit (240), location information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0107] The controller display unit (230) can display various content, such as various menu screens, using a user interface and / or a graphic user interface stored in the second storage unit (220) under the control of the second control unit (240). Here, the content displayed on the controller display unit (230) includes various text or image data (including various information data) and menu screens, etc., which include data such as icons, list menus, and combo boxes. Additionally, the controller display unit (230) may be a touch screen.

[0108] Additionally, the controller display unit (230) displays optical characteristic data related to the inspection target light source received under the control of the second control unit (240), position information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0109] At this time, the drone controller (200) may further include a voice output unit (not shown) for outputting voice information (or sound information), etc., corresponding to optical characteristic data related to the received inspection target lighthouse, location information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0110] Here, the voice output unit outputs voice information included in a signal processed by a predetermined signal by the control unit (240). The voice output unit may include a receiver, a speaker, a buzzer, etc. Additionally, the voice output unit outputs guidance voice generated by the second control unit (240).

[0111] The second control unit (240) can execute the overall control function of the drone controller (200) using the program and data stored in the second storage unit (220).

[0112] Additionally, the second control unit (240) moves the drone (100) to a destination and then generates a flight scenario to measure optical characteristic data related to a lighthouse subject to inspection located near the destination. Here, the flight scenario includes information about the departure point and destination (e.g., coordinate information of the departure point, coordinate information of the destination, etc.), flight path information from the departure point to the destination, departure time information, information about the lighthouse subject to inspection (e.g., unique number / unique identification information of the lighthouse, coordinate information of the lighthouse, etc.), command information for measuring optical characteristic data of the lighthouse, and unique identification information of the drone (100), etc., in order to measure optical characteristic data related to the lighthouse subject to inspection. At this time, the coordinate information includes latitude and longitude. Additionally, the destination may be a location where the drone (100) moves to measure optical characteristic data related to the lighthouse subject to inspection, and the destination may be multiple in relation to the same lighthouse subject to inspection or multiple different lighthouses subject to inspection.

[0113] Additionally, the second control unit (240) transmits the generated flight scenario, unique identification information of the drone controller (200), etc., to the drone (100) through the second communication unit (210).

[0114] Additionally, the second control unit (240) receives, through the communication unit (210), optical characteristic data related to the inspection target lighthouse transmitted from the drone (100) according to the flight scenario, location information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0115] At this time, the second control unit (240) may determine the validity of the received information (including optical characteristic data, location information of the drone (100), image information, etc.) based on the unique identification information of the received drone (100).

[0116] That is, the second control unit (240) determines whether the unique identification information of the received drone (100) is included in the unique identification information of one or more drones that are previously stored (or registered) in the storage unit (220).

[0117] As a result of the judgment, if the unique identification information of the received drone (100) is included in the unique identification information of one or more drones that have been previously registered, the second control unit (240) determines that the received information is valid.

[0118] Additionally, if, as a result of the judgment, the unique identification information of the received drone (100) is not included in the unique identification information of one or more drones that have been previously registered, the second control unit (240) determines that the received information is invalid and discards or deletes the received information.

[0119] Additionally, the second control unit (240) transmits optical characteristic data related to the received inspection target lighthouse, location information of the drone (100) at the time of measurement, image information at the time of measurement, etc., to the management terminal unit (300) through the second communication unit (210).

[0120] At this time, the second control unit (240) may control the position and attitude control function or process of the drone (100), the measurement function of optical characteristic data, the position information collection function of the drone (100), the image information acquisition function, etc., in real time by user control or user operation / input of the drone controller (200).

[0121] That is, after the drone (100) arrives at the destination, it transmits information about the arrival at the destination in real time to the drone controller (200), and then the control unit (240) controls the position and attitude control function / process of the drone (100), the measurement function of optical characteristic data, the position information collection function of the drone (100), the image information acquisition function, etc., in real time through user control of the drone controller (200).

[0122] In this way, the drone controller (200) can perform general functions for controlling the drone (100). Additionally, the drone controller (200) can control various measuring devices or sensor / measurement units configured in the drone (100) to collect various information related to the lighthouse.

[0123] The management terminal (300) communicates with the drone (100), drone controller (200), etc. Additionally, the management terminal (300) analyzes and verifies the optical performance related to the lighthouse subject to inspection based on various information (or observation information) related to the lighthouse subject to inspection provided by the drone controller (200), and outputs the verification results.

[0124] The management terminal (300) may be a portable terminal such as a smartphone, a telematics terminal, a navigation terminal, a personal computer, a laptop computer, a tablet PC, a wearable device, for example, a smartwatch.

[0125] The management terminal unit (300) may be composed of a third communication unit (310), a third storage unit (320), a terminal display unit (330), a terminal voice output unit (340), and a third control unit (350).

[0126] The third communication unit (310) establishes a communication connection with any internal component or at least one external terminal through a wired / wireless communication network. At this time, any external terminal may include a drone (100), a drone controller (200), etc.

[0127] In addition, the third communication unit (310) transmits and receives wireless signals to and from base stations, drones (100), drone controllers (200), etc. on a mobile communication network built according to technical standards or communication methods for mobile communication.

[0128] Additionally, the third communication unit (310) receives optical characteristic data related to the inspection target light source transmitted from the drone controller (200) under the control of the third control unit (350), position information of the drone (100) at the time of measurement, image information at the time of measurement, etc.

[0129] The third storage unit (320) stores various user interfaces (UI), graphic user interfaces (GUI), etc.

[0130] Additionally, the third storage unit (320) stores data and programs necessary for the operation of the management terminal unit (300). That is, the third storage unit (320) can store a number of application programs running on the management terminal unit (300), data for the operation of the management terminal unit (300), and commands. At least some of these application programs may be downloaded from an external server via wireless communication. In addition, at least some of these application programs may exist on the management terminal unit (300) from the time of shipment for the basic functions of the management terminal unit (300). Meanwhile, the application programs may be stored in the terminal storage unit (320), installed on the management terminal unit (300), and driven by the terminal control unit (350) to perform the operation (or function) of the management terminal unit (300).

[0131] Additionally, the third storage unit (320) stores optical characteristic data related to the inspection target light source received under the control of the third control unit (350), position information of the drone (100) at the time of measurement, image information at the time of measurement, etc.

[0132] The terminal display unit (or terminal display unit) (330) can display various content, such as various menu screens, using a user interface and / or a graphic user interface stored in the j storage unit (320) under the control of the third control unit (350). Here, the content displayed on the terminal display unit (330) includes various text or image data (including various information data) and menu screens, such as icons, list menus, and combo boxes. Additionally, the terminal display unit (330) may be a touch screen.

[0133] Additionally, the terminal display unit (330) displays optical characteristic data related to the inspection target light source received under the control of the third control unit (350), location information of the drone (100) at the time of measurement, image information at the time of measurement, etc.

[0134] The terminal voice output unit (340) outputs voice information included in a signal processed by a third control unit (350). Here, the terminal voice output unit (340) may include a receiver, a speaker, a buzzer, etc.

[0135] Additionally, the terminal voice output unit (340) outputs guidance voice generated by the third control unit (350).

[0136] Additionally, the terminal voice output unit (340) outputs voice information (or sound information), etc., corresponding to optical characteristic data related to the inspection target lighthouse received under the control of the terminal control unit (350), location information of the drone (100) at the time of measurement, image information at the time of measurement, etc.

[0137] The third control unit (350) executes the overall control function of the management terminal unit (300). Additionally, the terminal control unit (350) executes the overall control function of the management terminal unit (300) using the program and data stored in the terminal storage unit (320).

[0138] Additionally, the third control unit (350) can be applied to utilize multiple training datasets collected in advance as data for continuous machine learning (or deep learning). The input dataset for machine learning includes optical characteristic data related to the lighthouse collected later, location information of the drone (100) at the time of measurement, image information at the time of measurement, etc.

[0139] For example, the third control unit (350) can store raw data (e.g., information / data collected / measured in relation to a lighthouse, etc.) in parallel and distributed, perform preprocessing on the stored raw data (or data for training, etc.), perform analysis including data mining on the preprocessed data, and build big data by conducting learning, training, and testing based on at least one type of machine learning. At this time, at least one type of machine learning may be any one of supervised learning, semi-supervised learning, unsupervised learning, reinforcement learning, and deep reinforcement learning, or a combination of at least one of them.

[0140] In addition, the third control unit (350) receives characteristic data related to the inspection target lighthouse transmitted from the drone controller (200), location information of the drone (100) at the time of measurement, and image information at the time of measurement.

[0141] Additionally, the third control unit (350) analyzes optical characteristic data related to the received lighthouse subject to inspection, position information of the drone (100) at the time of measurement, image information at the time of measurement, etc., and generates an analysis result including the optical performance of the lighthouse subject to inspection and information on whether the lighthouse subject to inspection is operating normally.

[0142] That is, the third control unit (350) analyzes the optical characteristic data related to the received lighthouse subject to inspection, the position information of the drone (100) at the time of measurement, and the image information at the time of measurement according to preset standard conditions, and generates an analysis result including the optical performance (or optical performance information) of the lighthouse subject to inspection and information on whether the lighthouse subject to inspection is operating normally. Here, the analysis result may include the average / minimum / maximum value of luminous flux, the average / minimum / maximum value of chromaticity, the average / minimum / maximum value of vertical divergence angle, the average / minimum / maximum value of horizontal divergence angle, the average / minimum / maximum value of static luminous intensity, the average / minimum / maximum value of effective luminous intensity, the average / minimum / maximum value of homogeneity, the average / minimum / maximum value of the daylight detector, the average / minimum / maximum value of audible sound range, etc.

[0143] At this time, the third control unit (350) may compare standard optical characteristic data related to a preset standard light source (or a light source including a standard light source) with optical characteristic data related to a received light source to be inspected, analyze the optical performance of the light source to be inspected, and generate an analysis result.

[0144] And, the third control unit (350) receives the standard light intensity range information from the first storage unit (20) or the third storage unit (320), and the measured light intensity (e.g., cd) of the light emitted from the light source of the light bulb to be inspected b ) is the minimum value (threshold) (cd) of the above standard luminous intensity range v If it is less than ) it can be set to directly determine whether to replace it.

[0145] In addition, the third control unit (350) can directly determine the expected replacement time by comparing the measured light intensity and the expected light intensity information included in the image information captured by the camera (10).

[0146] Additionally, the third control unit (350) may set an allowable error range for the measured light intensity relative to the estimated light intensity for each accumulated lighting time. The allowable error range for the measured light intensity may be set to ±5% of the estimated light intensity corresponding to each accumulated time.

[0147] The third control unit (350) receives accumulated lighting time information from the light source (5) to be inspected, and if the measured light intensity of the light included in the image information captured by the camera (10) is greater than or equal to the allowable error range, it determines that an inspection is required and generates an inspection notification signal, which can be controlled to be displayed on the terminal display unit (330).

[0148] Additionally, the third control unit (350) can perform machine learning (or artificial intelligence / deep learning) using optical characteristic data related to the received inspection target lighthouse, location information of the drone (100) at the time of measurement, image information at the time of measurement, etc., as input values ​​for a pre-learned optical performance analysis model, and generate (or calculate / calculate / set / determine) an analysis result related to the inspection target lighthouse based on the machine learning result (or artificial intelligence result / deep learning result).

[0149] That is, the third control unit (350) performs machine learning using input values ​​including optical characteristic data related to the received lighthouse subject to inspection, position information of the drone (100) at the time of measurement, and image information at the time of measurement as input values ​​for the optical performance analysis model, and generates an analysis result related to the lighthouse subject to inspection based on the machine learning result.

[0150] Additionally, the third control unit (350) analyzes the optical characteristic data related to the received lighthouse subject to inspection, the position information of the drone (100) at the time of measurement, and the image information at the time of measurement, and checks (or determines) whether the position of the lighthouse subject to inspection is appropriate (or whether other pre-set conditions are satisfied).

[0151] When, as a result of verification (or judgment), it is confirmed that the location of the lighthouse subject to inspection is appropriate, the terminal control unit (350) generates a port backlight analysis result including information indicating that the location of the lighthouse subject to inspection is in an appropriate state, spectrum information using image information, and coordinate information of the current lighthouse subject to inspection. Here, the spectrum information may be a spectrum corresponding to the brightness value (or illuminance) of the image information.

[0152] In the embodiment of the present invention, the drone controller (200) and the management terminal (300) are described separately, but are not limited thereto, and the drone controller (200) and the management terminal (300) may be integrated into a single device.

[0153] In this way, the management terminal (300) can verify the optical performance of the lighthouse subject to inspection based on various information related to the lighthouse subject to inspection transmitted from the drone (100) via the drone controller (200), and can propose optimal coordinate information related to the lighthouse subject to inspection for operation in an optimal environment.

[0154] In addition, in this way, optical characteristic data of a lighthouse installed at the site can be measured using a drone equipped with an optical measuring unit, and the measured optical characteristic data of the lighthouse can be analyzed.

[0155] Hereinafter, the operation of a lighthouse monitoring system using light intensity according to the present invention will be explained.

[0156] First, the drone controller (200) moves the drone (100) to a destination and then generates a flight scenario to measure optical characteristic data related to a lighthouse to be inspected located around the destination.

[0157] Here, the flight scenario includes information about the departure point and destination (e.g., coordinate information of the departure point, coordinate information of the destination, etc.), flight path information from the departure point to the destination, departure time information, information about the lighthouse to be inspected (e.g., unique number / unique identification information of the lighthouse, coordinate information of the lighthouse, etc.), command information for measuring the lighthouse's optical characteristic data, and unique identification information of the drone (100), in order to measure optical characteristic data related to the lighthouse to be inspected. At this time, the coordinate information includes latitude and longitude. Additionally, the destination may be a location where the drone (100) moves to measure optical characteristic data related to the lighthouse to be inspected, and the destination may be multiple in relation to the same lighthouse to be inspected or multiple different lighthouses.

[0158] Additionally, the drone controller (200) transmits the flight scenario information and the unique identification information of the drone controller (200), etc., to the drone (100). Subsequently, the drone (100) receives the flight scenario and the unique identification information of the drone controller (200), etc., transmitted from the drone controller (200).

[0159] Additionally, the drone (100) takes off according to the departure time information based on the received flight scenario and flies to the destination. Additionally, the drone (100) measures optical characteristic data related to the inspection target lighthouse within a preset distance range (e.g., 200m to 300m) from the inspection target lighthouse corresponding to the destination, based on the optical characteristic data measurement command information of the inspection target lighthouse included in the flight scenario. At this time, the drone (100) collects location information of the drone (100) at the time of measuring the optical characteristic data.

[0160] Additionally, the drone (100) sets the setting value of the camera equipped in the drone (100) based on the environmental information of the area where the drone (100) is located, and then acquires (or captures) image information of the front of the drone (100) (or the direction of the inspection target lighthouse from the drone (100)) at the time of measuring characteristic data.

[0161] For example, the first drone receives a first flight scenario transmitted from the first drone controller, unique identification information of the first drone controller, etc.

[0162] In addition, when the first drone is determined to have valid unique identification information of the received first drone controller, it takes off at the corresponding time according to the first departure time information included in the received first flight scenario (e.g., 20:30:00 on November 28, 2023) and flies to the first destination corresponding to the coordinate information of the first destination.

[0163] Additionally, after the first drone arrives at the first destination, it measures first optical characteristic data related to a light source emitted from the first light source in a preset first cycle based on the optical characteristic data measurement command information of the first light source included in the first flight scenario, collects real-time position information of the first drone at the time of measuring the first optical characteristic data, and obtains first image information (e.g., still image, video, etc.) from the direction in which the first drone looks at the first light source at the time of measuring the first optical characteristic data. At this time, the first optical characteristic data, the position information of the first drone, the first image information, etc. may be in a synchronized state.

[0164] Afterwards, the drone (100) transmits optical characteristic data related to the measured inspection target light source, location information of the drone (100) at the time of the collected measurement (or characteristic data measurement), image information at the time of the acquired (or captured) measurement, unique identification information of the drone (100), etc., to the drone controller (200).

[0165] For example, the first drone transmits the measured first optical characteristic data, real-time location information of the first drone at the time of the measurement of the collected first optical characteristic data, first image information in the direction from which the first drone looks at the first light source at the time of the measurement of the acquired first optical characteristic data, unique identification information of the first drone (e.g., DR26888), etc. to the first drone controller.

[0166] Afterwards, the drone controller (200) receives optical characteristic data related to the inspection target light source transmitted from the drone (100), location information of the drone (100) at the time of measurement, image information at the time of measurement, unique identification information of the drone (100), etc.

[0167] Additionally, the drone controller (200) transmits optical characteristic data related to the received inspection target lighthouse, location information of the drone (100) at the time of measurement, image information at the time of measurement, etc. to the management terminal (300). At this time, the drone controller (200) may control the position and attitude control function (or process) of the drone (100), the measurement function of optical characteristic data, the location information collection function of the drone (100), and the image information acquisition function in real time through user control (or user operation / input) of the drone controller (200).

[0168] For example, the first drone controller receives first optical characteristic data transmitted from the first drone, real-time location information of the first drone at the time of measuring the first characteristic data, first image information in the direction from which the first drone looks at the first light source at the time of measuring the first optical characteristic data, unique identification information of the first drone, etc.

[0169] Additionally, when the first drone controller determines that the received unique identification information of the first drone is valid, it transmits the received first optical characteristic data, real-time location information of the first drone at the time of measuring the first optical characteristic data, and first image information from the direction in which the first drone looks at the first light source at the time of measuring the first optical characteristic data to the first management terminal (300).

[0170] Afterwards, the first management terminal (300) receives optical characteristic data related to the inspection target lighthouse transmitted from the first drone controller (200), location information of the first drone (100) at the time of measurement, image information at the time of measurement, etc.

[0171] That is, the first management terminal (300) analyzes the optical characteristic data related to the received inspection target lighthouse, the location information of the first drone (100) at the time of measurement, the image information at the time of measurement, etc., according to preset standard conditions, and generates an analysis result including the optical performance (or optical performance information) of the inspection target lighthouse and information on whether the inspection target lighthouse is operating normally.

[0172] In addition, the first management terminal (300) analyzes the optical characteristic data related to the received lighthouse subject to inspection, the location information of the first drone (100) at the time of measurement, and the image information at the time of measurement, and checks (or determines) whether the location of the lighthouse subject to inspection is appropriate (or whether other pre-set conditions are satisfied).

[0173] For example, the first management terminal (300) receives first characteristic data related to the first light source transmitted from the first drone controller, real-time location information of the first drone at the time of measuring the first optical characteristic data, and first image information in the direction from which the first drone looks at the first light source at the time of measuring the first optical characteristic data.

[0174] Additionally, the first management terminal (300) analyzes the first optical characteristic data related to the received first light bulb, the real-time location information of the first drone at the time of measuring the first characteristic data, and the first image information in the direction from which the first drone looks at the first light bulb at the time of measuring the first optical characteristic data, according to preset standard conditions, confirms the optical performance of the first light bulb, confirms that the first light bulb is operating normally, and then generates a first analysis result including optical performance information of the first light bulb and information on the normal operating state of the first light bulb.

[0175] And, the first management terminal (300) measures the light intensity of the light emitted from the light source of the first lamp (e.g., cd b ) is the minimum value (threshold) (cd) of the above standard luminous intensity range v If the value is less than ) the determination information for replacement is displayed on the terminal display unit (330). In addition, the first management terminal unit (300) compares the measured light intensity and the estimated light intensity information included in the image information captured by the camera (10) to determine the expected replacement time and displays it on the terminal display unit (330).

[0176] In addition, the first management terminal (300) can determine whether the measured light intensity is within the allowable error range for the expected light intensity for each cumulative lighting time of the light source and display it on the terminal display (330).

[0177] As described above, an embodiment of the present invention measures the optical characteristic data of a lighthouse installed in the field using a drone equipped with an optical analysis unit and analyzes the measured optical characteristic data of the lighthouse, thereby replacing the measurement of light intensity of manned and unmanned navigational aids using a measurement vessel, reducing the budget and time for operating measurement vessels, securing the foundational technology for measuring navigational aids using drones, and providing precise measurements.

[0178] The invention described above has been explained with reference to the attached drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0179] Therefore, the true scope of technical protection of the present invention should be determined solely by the technical concept of the appended claims.

Claims

1. A camera that acquires image information including light emitted from a light source; A storage unit storing initial luminous intensity information of the light emitted when the light bulb is first lit and predicted luminous intensity information of the light according to the cumulative lighting time of the light bulb; A light analysis unit that measures the light intensity of the light included in the image information transmitted from the camera; A light bulb monitoring system using light intensity, characterized by comprising: a control unit that determines the expected replacement time by comparing the measured light intensity of the light included in the above image information with the above expected light intensity information.

2. In claim 1, the storage unit Standard light intensity range information corresponding to the light range set in the above-mentioned light source is further stored, and The above control unit A light bulb monitoring system using light intensity, characterized by receiving standard light intensity range information from the storage unit and determining to replace if the measured light intensity is less than or equal to the minimum value of the standard light intensity range.

3. In claim 1, the control unit The allowable error range of the measured luminous intensity for the estimated luminous intensity per accumulated lighting time is set, and A light bulb monitoring system using light intensity, characterized by receiving accumulated lighting time information from the light bulb, determining that an inspection is required when the measured light intensity is greater than or equal to the allowable error range, and generating an inspection notification signal.

4. In Paragraph 1, A drone comprising the camera, the storage unit, and the light analysis unit for measuring optical characteristic data including the luminous intensity of each of the light sources being inspected located on a flight path, collecting current location information, and acquiring surrounding image information; A drone controller that generates flight path information of the drone and transmits it to the drone, and receives and transmits the optical characteristic data, location information, and image information transmitted from the drone; A lighthouse monitoring system using light intensity, further comprising: a management terminal including a control unit that receives the optical characteristic data, the location information, and the image information transmitted from the drone controller, and analyzes the received optical characteristic data to generate optical performance information of the lighthouse subject to inspection and operating status information of the lighthouse subject to inspection.

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