Lighting signal system for determining lighting status

Abstract

The present invention relates to a lighting signal system for determining the state of lighting, comprising: a lighting unit (100) including a lighting (110); a remote control unit (200) that transmits a control signal to the lighting unit (100) according to user operation; and a control unit (300) that receives an inspection signal and an identification signal from the lighting control module (140) and outputs whether there is an abnormal operation for each lighting unit (100) in a graphic form based on the received inspection signal and identification signal. When the remote control unit (200) transmits an inspection request signal, which is one of the control signals, to the lighting unit (100) according to user operation, the lighting unit (100) checks the operation of the lighting (110) to generate an inspection signal, transmits an identification signal including identification information of the lighting unit (100) and the inspection signal, and the lighting unit (100) has a power supply unit (120) that supplies power to the lighting (110). The device further includes an illuminance sensor (130) for sensing the brightness of the light (110); and a lighting control module (140) for controlling the light (110). The lighting control module (140) controls the light (110) in response to the inspection request signal, generates the inspection signal using the illuminance sensor (130), transmits the inspection signal and the identification signal, calculates a reference brightness based on the usage time of the light (110) using the following formula 1, and generates the inspection signal by comparing the calculated reference brightness with the brightness when the light (110) is controlled to maximum output. [Formula 1] (Epredicted(t) is the reference brightness expected at usage time t of the light (110), EInitial is the reference brightness at the time of initial manufacturing of the light (110), and is a decay constant)

Description

Technology Field

[0001] The present invention relates to a lighting signal system, and more specifically, to a lighting signal system in which a lighting control module transmits an inspection signal and an identification signal via wireless communication according to the operation of a remote control unit, and a control unit outputs the presence or absence of abnormal operation of the lighting in a graphic form, thereby enabling an operator to more clearly recognize the status of the lighting and perform maintenance and repair efficiently. Background Technology

[0003] Prior art 001 relates to a user location-based lighting control system and method, and presents a technology for controlling the lighting of an m-row direction lighting group and an n-column direction lighting group of a lighting module in which lighting for a light source is arranged in an m-xn matrix according to the location of a user detected using a sensor and the location of an object such as a shelf placed in a building.

[0004] Prior art document 002 relates to a direction-changing base having an easy multi-directional installation structure in a line lighting system, and presents a technology comprising a base, a coupling groove in which a screw hole is formed at the center side of each horizontal side and one of the vertical sides of the base, and a coupling piece for connecting the end side of a line lighting housing by being coupled with the coupling groove of the base.

[0005] Prior art document 003 relates to an upward lighting rail system for ceiling louvers. The disclosed upward lighting rail system for ceiling louvers presents a technology comprising an upward lighting device including a louver ceiling formed by connecting a plurality of louvers together, a lighting rail inserted into the interior of the louvers, the outer surface of which is fitted to the shape of the inner surface of the louvers and is open at the top to form a rail opening, a mounting part inserted into the lighting rail through the rail opening and mounted on the upper side of the louvers, an extension rod extending downward from the mounting part, and a light source part disposed at the lower end of the extension rod.

[0006] Prior art document 004 relates to a laser lighting system with reduced speckle noise, and more specifically, to a lighting system of an imaging system equipped with a camera, the system comprises a broadband laser lighting source, a wavelength converter that adjusts the wavelength band of light from the broadband laser lighting source, a cylindrical piezoelectric element, an optical fiber wound on the outer surface of the piezoelectric element through which light passing through the wavelength converter passes, and a power source configured to apply voltage to the piezoelectric element to cause the piezoelectric element to vibrate, and a lighting device having a speckle reduction unit, and a controller coupled to communicate with the camera and the lighting device. Here, the controller includes a processor configured to execute instructions, and the instructions present a technique in which the processor performs the steps of: a) receiving an image acquired by the camera by light from the lighting device; b) analyzing the image to check the speckle removal state; and c) adjusting at least one of the magnitude and frequency of the voltage applied to the piezoelectric element and the exposure time of the camera according to the speckle removal state. Prior art literature

[0008] Prior Art 001: KR 10-2025-0038962 A (Publication Date 2025.03.20) Prior Art 002: KR 10-2025-0049726 A (Publication Date 2025.04.14) Prior Art 003: KR ​​10-2057458 B1 (Announcement Date 2019.12.19) Prior Art 004: KR 10-2023-0163138 A (Publication Date 2023.11.30) The problem to be solved

[0009] The present invention has been devised to solve the technical problems described above. The objective of the lighting signal system for determining the state of lighting according to the present invention is to provide a lighting signal system that can improve work convenience and efficiency by facilitating the recognition and status check of lighting. means of solving the problem

[0011] The present invention is devised to solve the problems of the prior art as described above, and comprises: a lighting unit (100) including a light (110); a remote control unit (200) that transmits a control signal to the lighting unit (100) according to user operation; and a control unit (300) that receives the inspection signal and the identification signal from the lighting control module (140) and outputs whether there is an abnormal operation for each lighting unit (100) in a graphic form based on the received inspection signal and the identification signal. When the remote control unit (200) transmits an inspection request signal, which is one of the control signals, to the lighting unit (100) according to user operation, the lighting unit (100) checks the operation of the light (110) to generate an inspection signal, transmits an identification signal including identification information of the lighting unit (100) and the inspection signal, and the lighting unit (100) has a power supply unit (120) that supplies power to the light (110). The device further includes an illuminance sensor (130) for sensing the brightness of the light (110); and a lighting control module (140) for controlling the light (110). The lighting control module (140) controls the light (110) in response to the inspection request signal, generates the inspection signal using the illuminance sensor (130), transmits the inspection signal and the identification signal, calculates a reference brightness based on the usage time of the light (110) using the following formula 1, and generates the inspection signal by comparing the calculated reference brightness with the brightness when the light (110) is controlled to maximum output.

[0012] [Formula 1]

[0013]

[0014] (E predicted(t) is the reference brightness, E, expected at usage time t of the above lighting (110). Initial is the standard brightness at the time of initial manufacturing of the above lighting (110), is the damping constant) Effects of the invention

[0016] According to the lighting signal system for determining the state of lighting according to the embodiment of the present invention as described above, the lighting control module generates an inspection signal of the lighting using an illuminance sensor and transmits the inspection signal and identification signal, which include status information of the lighting, to an external source (e.g., a control unit), so that a user or manager can easily identify multiple installed lights and check whether there is abnormal operation of the lighting. Brief explanation of the drawing

[0018] FIG. 1 is a schematic diagram of a lighting signal system according to the present invention. FIG. 2 is a block diagram of an embodiment of a lighting signal system according to the present invention including a control unit. FIG. 3 is a flowchart of the lighting inspection of a lighting signal system according to the present invention. FIG. 4 is a flowchart of the process of transmitting an inspection signal and an identification signal according to the lighting inspection of a lighting signal system according to the present invention. FIG. 5 is a schematic cross-sectional view of an embodiment of a lighting signal system according to the present invention including a shielding part. FIG. 6 is a schematic diagram of an embodiment of a lighting signal system according to the present invention including an external illuminance sensor. FIG. 7 is a flowchart for checking the cover status using an external illuminance sensor of a lighting signal system according to the present invention. FIG. 8 is a schematic diagram of an embodiment of a lighting signal system according to the present invention including a collection unit. FIG. 9 is a schematic diagram of an embodiment of a lighting signal system according to the present invention including a temperature sensor. Specific details for implementing the invention

[0019] A lighting signal system for determining the state of lighting according to the present invention will be described in detail below with reference to the attached drawings.

[0021] [Example 1-1] The present invention relates to a lighting signal system for determining the state of lighting (hereinafter a lighting signal system), comprising a lighting unit (100) including lighting (110) and a remote control unit (200) that transmits a control signal to the lighting unit (100) according to the operation of a user. When the remote control unit (200) transmits a check request signal, which is one of the control signals, to the lighting unit (100) according to the operation of the user, the lighting unit (100) checks the operation of the lighting (110) to generate a check signal, and transmits the check signal and an identification signal including identification information of the lighting unit (100).

[0022] [Example 1-2] The present invention relates to a lighting signal system, wherein in Example 1-1, the inspection signal and the identification signal are included in a single signal.

[0023] [Examples 1-3] The present invention relates to a lighting signal system, wherein in Example 1-1, the inspection signal and the identification signal are transmitted individually.

[0024] [Examples 1-4] The present invention relates to a lighting signal system, wherein in Example 1-3, the lighting control module (140) transmits the identification signal to the outside by flashing the lighting (110) and transmits the inspection signal by wireless communication.

[0025] [Examples 1-5] The present invention relates to a lighting signal system, wherein in Example 1-4, the system includes a control unit (300) that receives the inspection signal and the identification signal from the lighting unit (100), and the control unit (300) includes a light detection unit (310) that senses the flashing pattern of the lighting (110), and identifies the lighting unit (100) by decoding the identification signal based on the sensing value of the light detection unit (310).

[0026] [Examples 1-6] The present invention relates to a lighting signal system, wherein in Example 1-5, the light detector (310) comprises at least one of a photodiode (PD) and an avalanche photodiode (APD).

[0027] [Examples 1-7] The present invention relates to a lighting signal system, wherein in Example 1-4, the lighting unit (100) transmits the inspection signal and the identification signal in a predetermined order within a predetermined time, and the control unit (300) receives the inspection signal and the identification signal in a predetermined order within a predetermined time to check the status of a specific lighting unit among the lighting units (100).

[0028] Conventional smart lighting required assigning a unique identification code to each light for individual control, maintenance, and repair. These codes were managed and controlled by labeling the exterior of the lights or recording them on installation drawings. However, when there are a large number of lights, not only is it difficult to identify the numbers, but manufacturers also face significant challenges in managing these codes, such as labels. Furthermore, in spaces with high ceilings (e.g., factories or logistics centers), it is difficult to verify the codes attached to the exterior. Additionally, the codes attached or printed on the exterior may wear down over time, making them difficult to read.

[0029] The present invention relates to a lighting signal system for determining the state of lighting, devised to compensate for the disadvantages of the conventional lighting system as described above.

[0030] The lighting signal system according to the present invention includes a lighting unit (100) and a remote control unit (200).

[0031] The lighting unit (100) includes lighting (110) and is installed on a building or street.

[0032] There may be at least two lighting units (100).

[0033] The remote control unit (200) transmits a control signal to the lighting unit (100) according to the user's operation.

[0034] The remote control unit (200) can transmit control signals using infrared rays, but the present invention does not limit the method by which the remote control unit (200) transmits control signals to infrared signals, and can transmit control signals in various ways. For example, the remote control unit (200) can transmit control signals in ways such as wireless internet, mobile communication networks, and short-range wireless communication depending on the user's operation.

[0035] The control signal transmitted from the remote control unit (200) may be a signal that controls the operation of the lighting (110) included in the lighting unit (100), or a signal requesting inspection.

[0036] The inspection request signal is a signal in which the lighting unit (100) independently requests a status check of the lighting (110). When the lighting unit (100) receives the inspection request signal from the remote control unit (200), it inspects the lighting (110) through a predetermined method, generates an inspection signal, and transmits an identification signal containing identification information of the lighting unit (100) and the inspection signal mentioned above.

[0037] The inspection signal and identification signal transmitted from the lighting unit (100) can be implemented as a single signal or each implemented as an individual signal and transmitted externally.

[0038] When the inspection signal and identification signal transmitted from the lighting unit (100) are implemented as a single signal, the lighting unit (100) can generate a single signal including the inspection information of the lighting (110) and the identification information of the lighting unit (100) in the single signal, and transmit the generated signal to the control unit (300) to be described later.

[0039] The lighting unit (100) can transmit a signal generated in at least one of a mobile communication network, wireless internet, and short-range wireless communication.

[0040] When a signal generated by a short-range wireless communication method in the lighting unit (100) is transmitted to the control unit (300), the short-range wireless communication method may be at least one of Bluetooth, Zigbee, and LoRa (Low Range Radio).

[0041] The lighting unit (100) can transmit an inspection signal and an identification signal separately.

[0042] When the inspection signal and identification signal are transmitted individually from the lighting unit (100), each signal may be transmitted individually in the same way, which is one of the wireless communication methods described above, or individually in different wireless communication methods.

[0043] For example, in the lighting unit (100), the inspection signal can be transmitted via Bluetooth, and the identification signal can be transmitted via wireless internet.

[0044] As another example, the lighting unit (100) can transmit an identification signal using the flashing of the light (110) itself. This method is a wireless communication method called Li-Fi, which is a type of optical communication method that transmits information through a pattern of flashing the light (110). That is, the lighting unit (100) can encode an identification signal by flashing the light (110) in a specific pattern and transmit it to the control unit (300).

[0045] As previously explained, the lighting signal system according to the present invention may further include a control unit (300).

[0046] The control unit (300) is a type of electronic device and may be at least one of a PC, a tablet, or a smartphone. The control unit (300) may include an output means and may output the state of the lighting (110) included in a specific lighting unit (100) based on an inspection signal and an identification signal received from the lighting unit (100).

[0047] The control unit (300) may include a light detection unit (310) that senses flashing pattern information of the light (110), and the light detection unit (310) may include at least one of a photodiode and an APD (Avalanche Photodiodes).

[0048] Although the flashing pattern of the light (110) has a frequency that is difficult for a person to perceive, the photodiode or APD included in the light detection unit (310) can sense the flashing pattern of the light (110), and the programmed electronic device included in the control unit (300) can identify which light unit (100) has transmitted the identification signal by decoding the flashing pattern of the light (110) sensed by the photodiode or APD. At this time, it goes without saying that the identification information of each light unit (100) is stored in the control unit (300) in order to compare the identification information decoded by the control unit (300).

[0049] The lighting unit (100) can transmit inspection signals and identification signals in a predetermined order within a predetermined time. This is because when there are multiple lighting units (100), if the lighting units (100) included in each of the lighting units (100) simultaneously transmit inspection signals and identification signals to the control unit (300), the control unit (300) may find it difficult to match the inspection signals and identification signals.

[0050] The lighting unit (100) can transmit inspection signals and identification signals in a predetermined order within a predetermined time, and the control unit (300) can check the status of a specific lighting unit (100) based on the inspection signals and identification signals received in a predetermined order and within a predetermined time.

[0051] However, depending on the communication environment, even if the inspection signal and identification signal are transmitted from the lighting unit (100) to the control unit (300) within a preset time, the time at which the inspection signal and identification signal are received by the control unit (300) may overlap with the time at which the inspection signal and identification signal transmitted from another lighting unit (100) are received. To solve this problem, the lighting unit (100) may include time information for the transmission of each signal in each of the inspection signal and identification signal, and the control unit (300) may match the inspection signal and identification signal based on the time information included in each signal. For example, if it is agreed that an inspection signal and identification signal will be transmitted from a specific lighting unit between 9:00 AM and 9:01 AM, the lighting control module of the corresponding lighting unit may transmit the inspection signal and identification signal by including the time information for transmission, and the control unit (300) may match the two signals with each other through the time information included in the signal after receiving the inspection signal and identification signal.

[0052] The method described above can be effectively used when applied to multiple lighting units (100). Conventional inspection methods for lighting units require assigning a unique identification code to each light to control smart lighting. The identification code assigned to each light is labeled on the exterior of the light or written on the lighting installation drawing to manage and control the lights. However, when there are many lights, not only is it difficult to identify the numbers, but lighting manufacturers also face difficulties in managing identification codes, such as label management. Furthermore, in spaces with high ceilings (e.g., factories or logistics centers), it is difficult to verify the identification code attached to the exterior of the light. Additionally, the identification code attached or drawn on the exterior of the light may wear out over time, making it difficult to verify.

[0053] Compared to such conventional methods, the inspection method of the lighting signal system according to the present invention as described above has the effect of making maintenance and repair of the lighting easier by eliminating the need for a worker to attach or write identification codes on the exterior of the lighting unit, and by enabling the normal operation of the lighting unit (100) without increasing costs, thereby allowing for the diagnosis of a fault in the lighting unit (100) to be performed at a relatively low cost.

[0055] [Example 2-1] The present invention relates to a lighting signal system, wherein in Example 1-1, the lighting unit (100) further comprises a power supply unit (120) that supplies power to the lighting (110), an illuminance sensor (130) that senses the brightness of the lighting (110), and a lighting control module (140) that controls the lighting (110), wherein the lighting control module (140) controls the lighting (110) in response to the inspection request signal, generates the inspection signal using the illuminance sensor (130), and transmits the inspection signal and the identification signal.

[0056] [Example 2-2] The present invention relates to a lighting signal system. In Example 2-1, the lighting control module (140) controls the brightness of the lighting (110) to the maximum, and then, if the error between the brightness of the lighting (110) sensed by the illuminance sensor (130) and the previously stored reference brightness is within the reference range, transmits an inspection signal to the outside containing information that the lighting (110) is normal.

[0057] [Example 2-3] The present invention relates to a lighting signal system. In Example 2-1, the lighting control module (140) controls the brightness of the lighting (110) to the maximum, and then, if the error between the brightness of the lighting (110) sensed by the illuminance sensor (130) and the previously stored reference brightness deviates from the reference range, it transmits an inspection signal to the outside containing information that the lighting (110) is abnormal.

[0058] [Example 2-4] The present invention relates to a lighting signal system, wherein in Example 2-1, the lighting control module (140) transmits the inspection signal, which includes whether there is an abnormality in the lighting (110), to the outside, and includes a control unit (300) that receives the inspection signal from the lighting control module (140).

[0059] [Example 2-5] The present invention relates to a lighting signal system. In Example 2-4, the remote control unit (200) transmits a control signal to the lighting unit (100) and transmits a first signal containing information that the control signal has been transmitted to the control unit (300). After receiving the first signal from the remote control unit (200), if the control unit (300) does not receive the inspection signal from the lighting unit (100) within a preset time, it determines that the lighting unit (100) is broken and outputs a determination result.

[0060] [Example 2-6] The present invention relates to a lighting signal system, wherein in Example 2-1, the reference brightness varies according to the usage time of the lighting (110).

[0061] [Example 2-7] The present invention relates to a lighting signal system, wherein in Example 2-6, the reference brightness is determined according to the following formula.

[0062]

[0063] (E in the above formula predicted(t) is a reference brightness, E, that changes according to the usage time t of the lighting (110). Initial The maximum brightness of the light (110) when the light (110) is first manufactured, is the damping constant)

[0064] [Example 2-8] The present invention relates to a lighting signal system. In Example 2-1, the lighting control module (140) determines that the lifespan of the light sensor (130) has ended when the light intensity of the lighting (110) becomes less than or equal to the reference ratio of the maximum brightness of the lighting (110) when the lighting (110) was first manufactured, based on the sensing value of the light intensity sensor (130), and generates and transmits the inspection signal including the determination result.

[0065] In the lighting signal system according to the present invention, the lighting unit (100) and the process of checking whether the lighting (110) in the lighting unit (100) is operating abnormally are specified.

[0066] The lighting unit (100) includes a light (110), a power supply unit (120), an illuminance sensor (130), and a lighting control module (140).

[0067] The lighting (110) emits light according to control.

[0068] One lighting unit (100) may include at least one lighting unit (110).

[0069] The lighting (110) may be of various types, and in this embodiment, the lighting (110) may include an LED.

[0070] The power supply unit (120) supplies power to the lighting (110). The power supply unit (120) is connected to an external grid power source and can convert the voltage of the grid power source into a voltage suitable for the lighting (110) and supply it. To this end, the power supply unit (120) may include a type of converter. When the power supply unit (120) is connected to an external grid power source, the external grid power source in South Korea is AC, and the LED included in the power supply unit (120) uses DC; therefore, in this case, the power supply unit (120) may include an AC / DC converter.

[0071] There may also be an embodiment in which the power supply unit (120) includes a battery rather than being connected to an external grid power source, and supplies power stored in the battery to the LED. When the power supply unit (120) includes a battery, the power supply unit (120) may include a DC / DC converter or a resistor to supply power stored in the battery to the LED.

[0072] The illuminance sensor (130) senses the ambient illuminance and, furthermore, senses the illuminance of the light (110) when the light (110) is operating. The sensing value of the illuminance sensor (130) can be transmitted to the lighting control module (140).

[0073] The lighting control module (140) controls the lighting (110) according to the control signal transmitted from the remote control unit (200).

[0074] The lighting control module (140) may be implemented in the form of a circuit board for controlling the lighting (110) or in the form of an electronic device including a circuit board.

[0075] The light sensor (130) can be used when the lighting signal system according to the present invention performs an inspection operation of the lighting unit, and when the inspection operation of the lighting unit is not performed, the lighting control module (140) can control the brightness of the lighting (110) based on the sensing value of the light sensor (130). For example, when the lighting control module (140) does not perform an inspection operation of the lighting unit, it can control the brightness of the lighting (110) to be low if the sensing value is low and to be high if the sensing value of the light sensor (130) is high.

[0076] The user can transmit an inspection request signal to the lighting unit (100) using the remote control unit (200), and when the lighting control module (140) receives the inspection request signal from the remote control unit (200), it controls the lighting (110) to maximum output. Subsequently, the illuminance sensor (130) senses the brightness of the light emitted from the lighting (110) for a predetermined period of time and then transmits the sensed value to the lighting control module (140).

[0077] The lighting sensor module (140) compares the brightness of the maximum output of the lighting (110) with a stored reference brightness based on the sensing value of the illuminance sensor (130). For example, the reference brightness of the LED stored in the lighting control module (140) may be 2,000 lumens, and the lighting control module (140) compares the reference brightness of 2,000 lumens with the brightness of the lighting (110) sensed by the illuminance sensor (130) as a percentage of the reference brightness of 2,000 lumens. The aforementioned percentage may be a reference range, and this reference range may be pre-set. For example, the reference range may be determined to be 70 to 100%.

[0078] The lighting control module (140) can compare the brightness of the light (110) sensed by the light sensor (130) with the reference brightness and transmit an inspection signal to the outside containing information that the light (110) is normal if the sensing value of the light sensor (130) is within the reference range, and transmit an inspection signal to the outside containing information that the light (110) is abnormal if it is outside the reference range.

[0079] The inspection signal, including whether the lighting (110) is functioning normally, transmitted by the lighting control module (140) can be transmitted to the remote control unit (200) described above, and can be transmitted not only to the remote control unit (200) but also to the control unit (300).

[0080] The control unit (300) and the lighting control module (140) can communicate with each other using various types of wireless communication. For example, the control unit (300) and the lighting control module (140) can communicate with each other through at least one of wireless internet, short-range wireless communication, LoRa, and mobile communication networks. When the control unit (300) and the lighting control module (140) communicate with each other using a short-range wireless communication method, the short-range wireless communication method may include at least one of Bluetooth and Zigbee.

[0081] The remote control unit (200) can transmit a control signal to the lighting unit (100) and simultaneously transmit a first signal to the control unit (300) that includes information that the control signal has been transmitted to the lighting unit (100). After receiving the first signal from the remote control unit (200), the control unit (300) checks whether a signal including information on the normal status of the lighting (110) is received from the lighting control module (140) within a preset time. If the control unit (300) does not receive a signal including information on the normal status of the lighting (110) from the lighting control module (140) within a preset time after receiving the first signal, it determines that the communication module included in the lighting unit (100) is faulty and can output the determination result to an output means. A user of the lighting signal system according to the present invention can check whether a specific lighting unit (100) is operating normally through information output to the control unit (300), and if it is operating abnormally, whether the device in the lighting and communication part is operating abnormally.

[0082] In the lighting control module (140) described above, the illuminance of the lighting (110) is sensed using an illuminance sensor (130), and the sensed value is compared with the reference brightness. This can be expressed as shown in the following formula, depending on the usage time of the lighting (110).

[0083]

[0084] In the above formula, E predicted(t) is the maximum brightness predicted according to the usage time t of the lighting (110), and E Initial is the maximum brightness measured at the time of the initial manufacture of the lighting (110). As with the formula above, the maximum brightness E predicted according to the usage time t of the lighting (110) predicted(t) E is the maximum brightness measured at the time of the initial manufacture of the light (110). Initial It decreases according to the exponential function of. Here, beta The value is a damping constant, and an appropriate value can be set by referring to standard data on luminous flux maintenance rate or lifespan prediction data provided by the manufacturer of the light (110), and environmental conditions.

[0085] The lighting control module (140) is E predicted(t) E, which is the illuminance of the lighting (110) at this measurement point. current When it is within the standard range, it can be determined that the corresponding light (110) is operating normally, and when it is outside the standard range, it can be determined that the corresponding light (110) is operating abnormally. The formula for determining whether it is operating normally is as follows.

[0086]

[0087] In the formula mentioned above is the tolerance, and the tolerance can be pre-set. For example, tolerance is E predicted(t) It can be set to 5% of.

[0088] As described above, the lighting control module (140) compares the sensing value of the lighting (110) with the maximum brightness predicted according to the usage time t of the lighting (110) at the time of measurement, and the sensing value of the lighting (110) and E Initial The lighting control module (140) compares the sensing value of the lighting (110) E Initial When the standard ratio, for example, drops below 70%, it is determined that the lifespan of the lighting (110) has ended, and a signal including the result of determining that the lifespan of a specific lighting unit (100) has ended can be transmitted externally.

[0090] [Example 3-1] The present invention relates to a lighting signal system, and in Example 2-1, includes a control unit (300) that receives the inspection signal and the identification signal from the lighting control module (140) and outputs the status of abnormal operation for each lighting unit (100) in a graphic form based on the received inspection signal and the identification signal.

[0091] [Example 3-2] The present invention relates to a lighting signal system, wherein in Example 3-1, the control unit (300) outputs the color of the lighting unit that operates abnormally and the color of the lighting unit that operates normally differently.

[0092] [Example 3-3] The present invention relates to a lighting signal system, and in Example 3-1, the control unit (300) outputs whether there is an abnormal operation for each lighting unit (100) in a 2D or 3D graphic form based on the received inspection signal and identification signal.

[0093] In the present invention, the control unit (300) receives an inspection signal and an identification signal from the lighting control module (140), and can output whether there is an abnormal operation for each lighting unit (100) in a graphic form based on the received inspection signal and identification signal. To this end, the control unit (300) may include a display.

[0094] The state of the lighting unit (100) output from the control unit (300) can be expressed in a two-dimensional or three-dimensional form considering the installation location of the lighting unit (100).

[0095] The user has the effect of being able to check the status information of each lighting unit (100) more intuitively through the status information of the lighting unit (100) in a 2D or 3D form displayed on the display included in the control unit (300).

[0096] In particular, the control unit (300) outputs a different color for the lighting unit (100) that is operating abnormally among the states of the lighting units (100) displayed in two or three dimensions, so that the user can more easily and intuitively check which lighting unit (100) is operating abnormally.

[0098] [Example 4-1] The present invention relates to a lighting signal system, wherein in Example 2-1, the lighting unit (100) further includes a cover (150) that covers the lighting (110), and the illuminance sensor (130) is installed on the inner surface of the cover (150) and is installed facing the lighting (110).

[0099] [Example 4-2] The present invention relates to a lighting signal system, wherein in Example 4-1, the lighting unit (100) further includes a shielding unit (160) that surrounds the periphery of the illuminance sensor (130) but is open on the side of the lighting (110).

[0100] [Example 4-3] The present invention relates to a lighting signal system, wherein in Example 4-2, the shielding part (160) is made of an opaque material.

[0101] [Example 4-4] The present invention relates to a lighting signal system, wherein in Example 4-3, the lighting unit (100) includes a light absorber (170) coated on the inner surface of the shielding unit (160).

[0102] [Examples 4-5] The present invention relates to a lighting signal system. In Example 4-1, the system further includes an external illuminance sensor (500) installed outside the lighting unit (100) to sense the brightness of the lighting (110) and transmit the sensed value to the lighting control module (140). When the lighting control module (140) receives the inspection request signal, it controls the lighting (110) so that the brightness of the lighting (110) becomes maximum, senses the external brightness of the lighting (110) using the external illuminance sensor (500), compares the external brightness of the lighting (110) with the external reference brightness to estimate the state of the cover (150), and transmits a cover inspection signal containing the estimated information to the outside.

[0103] [Examples 4-6] The present invention relates to a lighting signal system, wherein in Example 4-5, the external reference brightness varies according to the distance between the external illuminance sensor (500) and the lighting unit (100).

[0104] [Example 4-7] The present invention relates to a lighting signal system, and in Example 4-6, the external illuminance sensor (500) transmits a sensing value to the lighting control module (140) using wireless communication, and the lighting control module (140) measures the distance between the lighting control module (140) and the external illuminance sensor (500) using a delay signal of the sensing value received from the external illuminance sensor (500), and changes the external reference brightness based on the measured distance.

[0105] In the present invention, the lighting unit (100) may further include a cover (150) that covers the lighting (110), and the illuminance sensor (130) may be installed on the inner surface of the cover (150) and may be installed facing the lighting (110).

[0106] In this embodiment, the illuminance sensor (130) is installed on the cover (150) facing the light (110) in order to minimize interference from ambient light when measuring the brightness of the light (110) using the illuminance sensor (130).

[0107] However, since the cover of the light (110) is generally made of a material having a light transmittance of a certain degree or higher, natural light or light from other lights may be incident on the illuminance sensor (130) through the cover (150), which may still cause a problem of reduced accuracy when sensing the illuminance of the light (110) to measure the state of the light (110). To solve this, the light unit (100) in this embodiment may further include a shielding unit (160).

[0108] The shielding part (160) is installed to surround the light sensor (130), but the end on the light (110) side may have an open shape.

[0109] The covering part (160) itself can be made of an opaque material, for example, the covering part (160) can be made of an opaque synthetic resin.

[0110] Even if the shielding part (160) is manufactured from an opaque material, light from the light (110) that is the object of measurement, which is incident through the open part of the shielding part (160), may be reflected inside the shielding part (160). Since this causes an error in the actual illuminance of the light (110) to be measured by the illuminance sensor (130), it is necessary to prevent the reflection of light inside the shielding part (160), and to this end, the light part (100) may further include a light absorber (170) coated on the inner surface of the shielding part (160).

[0111] The light absorber (170) may be a black material, and materials such as Vantablack, black flocking paper, and matte black spray may be used.

[0112] The lighting signal system according to the present invention may further include an external illuminance sensor (500).

[0113] The external light sensor (500) is intended to check the condition of the cover (150) included in the lighting unit (100). Dust or foreign matter may accumulate on the cover (150) included in the lighting unit (100), and the surface condition of such cover (150) reduces the efficiency of the lighting (110) itself, so it is necessary to sense this condition and notify the user.

[0114] To solve these problems, an external light sensor (500) senses the brightness of the light (110) from outside the lighting unit (100) and transmits the sensed value to the lighting control module (140).

[0115] More specifically, when a request for inspection is received from the remote control unit (200), the lighting control module (140) controls the lighting (110) to maximum brightness. Subsequently, the external illuminance sensor (500) senses the brightness of the lighting (110) from outside the lighting unit (100) and transmits the sensed value to the lighting control module (140). The lighting control module (140) compares the sensed value of the external illuminance sensor (500) with a stored external reference brightness to estimate the state of the cover (150). For example, if the stored external reference brightness is 1,500 lumens and the brightness of the light (110) sensed by the external illuminance sensor (500) is 1,200 lumens, the lighting control module (140) can estimate that dust or foreign matter has accumulated on the cover (150) included in the lighting unit (100) and transmit the estimated information to the control unit (400) so that appropriate measures can be taken.

[0116] The method of using such an external light sensor (500) has the advantage of being able to inspect the covers (150) included in multiple lighting units (100) using a single external light sensor (500).

[0117] However, since the brightness of the light is inversely proportional to the square of the distance from the light source, the distance between the external light sensor (500) and the lighting (110) must be taken into account. Therefore, the external reference brightness may vary depending on the distance between the external light sensor (500) and the lighting unit (100).

[0118] The distance between the external light sensor (500) and the lighting unit (100) may be stored in advance, but the distance between the external light sensor (500) and the lighting unit (100) can be technically calculated as needed. For example, the external light sensor (500) can transmit a sensing value to the lighting control module (140) using wireless communication. If the wireless communication method is Bluetooth, the lighting control module (140) can estimate the distance between the external light sensor (500) and the lighting unit (100) by utilizing the characteristic that the intensity of the received sensing value weakens, and can change the external reference brightness described above using the estimated distance.

[0119] In addition to this method, the lighting control module (140) can calculate the distance between the external light sensor (500) and the lighting control module (140) using the Time of Flight (ToF) method, the time taken for a signal including a sensing value transmitted from the external light sensor (500) to reach the lighting unit (100), and the speed of the signal, and apply the calculated distance information to the external reference brightness to change it.

[0120] Of course, the actual usage time of the lighting (110) described earlier is also applied to the external standard brightness mentioned above.

[0121] In the process described above, the illuminance according to the usage time of the lighting (110) is calculated using the following formula.

[0123] Here, E ideal(t) is the illuminance at usage time t of the lighting (110) when the transmittance of the cover is 1, and I(t) is E as explained earlier. predicted(t) It is the same as, and r is the distance between the external light sensor (500) and the lighting unit (100).

[0124] The following formula can also be used.

[0125]

[0126] In the formula mentioned above, E sensed(t) is the sensing value of the external light sensor (500), and is the transmittance of the cover. Therefore, the above formula By summarizing the above, the current transmittance of the cover can be estimated.

[0127]

[0128] In the formula mentioned above The closer this is to 1, the cleaner the cover is, and The lower this value is from 1, the more severe the contamination of the cover can be estimated.

[0130] [Example 5-1] The present invention relates to a lighting signal system, wherein in Example 2-1, the lighting unit (100) is at least two or more, and the lighting control module (140) included in each of the lighting units (100) transmits an inspection signal to the outside for determining whether there is an abnormality in the lighting (110), and includes a collection unit (400) that receives inspection signals from each of the lighting units (100) and transmits the collected inspection signals to the outside, and a control unit (300) that receives inspection signals collected from the collection unit (400).

[0131] [Example 5-2] The present invention relates to a lighting signal system. In Example 5-1, the aggregation unit (400) transmits the aggregated inspection signal to the control unit (300) when the inspection signal received from each of the lighting units (100) includes information that the lighting (110) is operating abnormally.

[0132] [Example 5-3] The present invention relates to a lighting signal system, and in Example 5-1, the aggregation unit (400) does not transmit the aggregated inspection signal to the control unit (300) if the inspection signal received from each of the lighting units (100) does not contain information that the lighting (110) is operating abnormally.

[0133] In the lighting signal system according to the present invention, there may be at least two lighting units (100), and a lighting control module (140) included in each lighting unit (100) identifies whether there is an abnormality in the lighting (110) through the method described above and transmits an inspection signal including whether there is an abnormal operation of the determined lighting (110) to the outside.

[0134] In the previous embodiment, the lighting control module (140) transmitted an inspection signal to the control unit (300). However, if there are many lighting units (100), when all lighting units (100) transmit an inspection signal to the control unit (300), the traffic becomes excessive, and problems such as slowing down the operation of the control unit (300) may occur. To reduce such load, the lighting signal system according to the present invention may further include a collection unit (400) that receives inspection signals from a certain number of lighting units (100), collects the received inspection signals, and transmits the collected inspection signals to the control unit (300).

[0135] If the inspection signal received from each of the lighting units (100) under management contains information that the lighting (110) is operating abnormally, the collection unit (400) transmits the collected inspection signal to the control unit (300); if the information that the lighting is operating abnormally is not included, the collection unit (400) may not transmit the collected inspection signal to the control unit (300). This method reduces the communication load between the lighting units (100) and the control unit (300), making it suitable for areas or facilities where a large number of lighting units (100) are installed.

[0137] [Example 6-1] The present invention relates to a lighting signal system, wherein in Example 5-1, the lighting unit (100) includes a temperature sensor (180) that senses the temperature of at least one of the lighting (110) and the power supply unit (120), and the lighting control module (140) transmits an emergency signal to the control unit (300) containing information that overheating or abnormal power consumption has occurred when at least one of the lighting (110) and the power supply unit (120) overheats or abnormal power consumption occurs based on the sensing value of the temperature sensor (180).

[0138] In the embodiment described above, the lighting unit (100) transmits an inspection signal to the collection unit (400), and the collection unit (400) transmits the collected inspection signal to the control unit (300). However, in an emergency situation, this process may result in slow transmission of information, which may prevent the manager from taking appropriate action. To resolve this, in an emergency situation, the lighting unit (100) may be configured to directly transmit an emergency signal to the control unit (300).

[0139] Here, an emergency situation may occur when the lighting unit (100) overheats and there is a risk of fire, or when abnormal power consumption occurs in the lighting unit (100). To determine the former case, the lighting unit (100) may further include a temperature sensor (180).

[0140] The temperature sensor (180) senses the temperature of at least one of the lighting (110) and the power supply (120) and transmits the sensed value to the lighting control module (140). Based on the sensed value of the temperature sensor (180), if the temperature of the installed location exceeds a reference value, the lighting control module (140) can transmit an emergency signal to the control unit (300) containing information that there is a risk of fire.

[0141] The temperature sensor (180) can be used to determine whether a fire has occurred by directly measuring the temperature, but in the case of abnormal power consumption, the lighting control module (140) itself can measure it without a separate sensor. If the lighting control module (140) determines that an event such as a fire risk or damage to the equipment itself has occurred when power is used that is significantly more or less than the power normally consumed, it can transmit an emergency signal containing information that abnormal power consumption has occurred to the control unit (300).

[0142] When the control unit (300) receives an emergency signal directly from the lighting unit (100) without going through the collection unit (400), it can output the received emergency signal as a top priority so that the manager can respond appropriately to the situation.

[0144] The present invention is not limited to the embodiments described above and has a diverse scope of application. Furthermore, it is understood that anyone with ordinary knowledge in the field to which the present invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims. Explanation of the symbols

[0146] 100: Lighting unit 110: Lighting 120; Power supply 130: Light sensor 140: Lighting control module 150: Cover 160: Shielding part 170: Light absorber 180: Temperature sensor 200: Remote control unit 300: Control Unit 310: Photodetector Unit 400: Collection unit 500: External light sensor

Claims

Claim 1 A lighting unit (100) including a light (110); a remote control unit (200) that transmits a control signal to the lighting unit (100) according to the operation of a user; and a control unit (300) that receives an inspection signal and an identification signal from a lighting control module (140) and outputs whether there is an abnormal operation of each lighting unit (100) in a graphic form based on the received inspection signal and identification signal; wherein, when the remote control unit (200) transmits an inspection request signal, which is one of the control signals, to the lighting unit (100) according to the operation of a user, the lighting unit (100) checks the operation of the light (110) to generate the inspection signal, and transmits the identification signal and the inspection signal including identification information of the lighting unit (100); and the lighting unit (100) includes a power supply unit (120) that supplies power to the light (110); A lighting signal system further comprising: an illuminance sensor (130) for sensing the brightness of the lighting (110); wherein the lighting control module (140) controls the lighting (110) in response to the inspection request signal, generates the inspection signal using the illuminance sensor (130), transmits the inspection signal and the identification signal, calculates a reference brightness according to the usage time of the lighting (110) using the following Equation 1, and generates the inspection signal by comparing the calculated reference brightness with the brightness when the lighting (110) is controlled to maximum output. [Equation 1] (E predicted(t) is the reference brightness, E, expected at usage time t of the above lighting (110). Initial is the standard brightness at the time of initial manufacturing of the above lighting (110), is the damping constant)

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