Smart LED lighting devices to prevent loneliness and suicide among vulnerable groups and single-person households

Abstract

The present invention relates to an LED lamp and an LED lamp system including the same. More specifically, it relates to an LED lamp that is combinable with unique functionality and an LED lamp system including the same. One embodiment of the present invention relates to a smart LED lighting device for preventing solitary death and / or suicide among vulnerable groups and single-person households.

Description

Technology Field

[0001] The present invention relates to an LED lamp and an LED lamp system including the same. More specifically, it relates to an LED lamp that is combinable with unique functionality and an LED lamp system including the same.

[0002] One embodiment of the present invention relates to a smart LED lighting device for preventing solitary death and / or suicide among vulnerable groups and single-person households. Background Technology

[0003] An LED (Light Emitting Diode) is a type of light-emitting diode that refers to a compound semiconductor that emits light when an electric current is applied. Unlike single-element semiconductors, which are composed of a single element such as silicon or germanium, a compound semiconductor is a semiconductor composed of two or more elements. LEDs are primarily made of gallium arsenide (GaAs), gallium phosphide (GaP), gallium arsenide phosphide (GaAsP), and gallium nitride (GaN), and the color of the LED light varies depending on which compound is used.

[0004] In particular, LEDs have very high energy conversion efficiency because they directly convert electrical energy into light. In addition to their long lifespan, they are widely used in lighting applications such as lamps due to their low power consumption and miniaturization capabilities.

[0005] Recently, there has been a trend to combine LED lamps with IoT (Internet of Things) and AI (Artificial Intelligence) to utilize them in various services. For example, there is a smart care service that uses AI and ICT (Information and Communication Technology)—utilizing communication data, apps, IoT sensors, etc.—to check on the well-being of households at risk of social isolation (such as the elderly living alone and the disabled) and to quickly connect with emergency services in the event of a dangerous situation, in order to prevent lonely deaths among these groups.

[0006] To address this, there have been attempts to simply add various sensors and routers to conventional LED lamps. However, this approach has the problem of compromising aesthetics as various connected components (e.g., routers or sensors) protrude externally. Additionally, when using multiple LED lamps, connecting power wires to each lamp and installing them becomes complicated. The problem to be solved

[0007] One of the various objectives of the present invention is to provide an LED lamp in which a sensor and a router are built-in and do not protrude externally, and an LED lamp system including the same.

[0008] One of the various objectives of the present invention is to provide an LED lamp that is easy to install when a plurality of LED lamps are combined, and an LED lamp system including the same.

[0009] One of the various objectives of the present invention is to provide an LED lamp that is easy to use with an intuitive interface and an LED lamp system including the same. means of solving the problem

[0010] An LED lamp according to one embodiment of the present invention may include: a frame that includes an internal receiving space and is fixable to the outside; a cover that is detachably coupled to the frame and covers the receiving space; a support plate disposed in the receiving space and having a plurality of LEDs arranged at a predetermined interval on one surface; a charging unit located on each inner surface of the frame; a first sensor that detects human motion and is detachably coupled to one inner surface of the frame; and a control unit on the other surface of the support plate that controls the plurality of LEDs, the charging unit, and the first sensor and is capable of communicating with the outside.

[0011] In one embodiment, the LED lamp may be detachably coupled to one inner side of the frame or optionally coupled to the first sensor, and may further include a second sensor that detects gas leakage and is controlled by the control unit.

[0012] In one embodiment, the LED lamp may be detachably coupled to one inner side of the frame or selectively coupled to either the first sensor or the second sensor, and may further include a third sensor that detects external temperature and humidity and is controlled by the control unit.

[0013] In one embodiment, the LED lamp may be detachably coupled to one inner side of the frame or selectively coupled to any one of the first sensor, the second sensor, and the third sensor, and may further include a fourth sensor that detects external smoke and is controlled by the control unit.

[0014] In one embodiment, the control unit may output a predetermined indication through the plurality of LEDs when the second sensor detects a gas leak, when the third sensor detects a temperature above a preset temperature, or when the fourth sensor detects smoke.

[0015] In one embodiment, the control unit may transmit detected information to the outside when the second sensor detects a gas leak, when the third sensor detects a temperature above a preset temperature, or when the fourth sensor detects smoke.

[0016] Meanwhile, an LED lamp system according to one embodiment of the present invention comprises: a frame having an internal receiving space and capable of being fixed externally; a cover detachably coupled to the frame to cover the receiving space; a support plate disposed in the receiving space and having a plurality of LEDs arranged at a predetermined interval on one surface; charging units located on each inner surface of the frame; and a control unit on the other surface of the support plate that controls the plurality of LEDs and the charging units and is capable of communicating with the outside, comprising a first LED lamp and a second LED lamp; and a fastening member that combines the frame of the first LED lamp and the frame of the second LED lamp so that one charging unit of the first LED lamp and one charging unit of the second LED lamp face each other at a predetermined interval to form a pair of charging units capable of wireless charging. When power is supplied to the first LED lamp via a wire, the control unit of the first LED lamp and the control unit of the second LED lamp can transmit power to the second LED lamp through the pair of charging units capable of wireless charging.

[0017] In one embodiment, the control unit of the first LED lamp and the control unit of the second LED lamp can wirelessly transmit and receive signals to and from each other through the pair of charging units.

[0018] In one embodiment, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a second sensor that detects gas leakage. When the second sensor detects gas leakage, the control unit of the first LED lamp and the control unit of the second LED lamp can each output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp.

[0019] In one embodiment, when the second sensor detects a gas leak, at least one of the control unit of the first LED lamp and the control unit of the second LED lamp can transmit the detected information to the outside.

[0020] In one embodiment, the control unit of the first LED lamp can output an indication indicating a preset escape direction through a plurality of LEDs of the first LED lamp.

[0021] In one embodiment, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a third sensor that detects temperature and humidity. When the third sensor detects a temperature above a preset temperature, the control unit of the first LED lamp and the control unit of the second LED lamp can output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp, respectively.

[0022] In one embodiment, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a fourth sensor that detects smoke. When the fourth sensor detects smoke, the control unit of the first LED lamp and the control unit of the second LED lamp can each output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp. Effects of the invention

[0023] Since the LED lamp and the LED lamp system including the same according to one embodiment of the present invention have a sensor and a router integrated and built-in, there is no need to replace the cover of the LED lamp even if a sensor is added or a sensor of a different size with different functions is added.

[0024] In addition, the present invention integrates a human body detection sensor (first sensor) and an IoT communication module (control unit) into a lighting device essential for residential spaces, thereby enabling constant monitoring of the presence and activity patterns of residents in vulnerable groups and single-person households naturally, without causing any discomfort or controversy regarding privacy infringement. Through this, if no movement of the resident is detected for a certain period of time (e.g., signs of solitary death), an alert is immediately sent to a guardian or control center to allow for prompt rescue measures, thereby effectively preventing solitary deaths in socially isolated households.

[0025] Furthermore, the present invention adopts a modular structure capable of selectively combining a gas sensor (second sensor), a smoke sensor (fourth sensor), etc., thereby enabling not only simple fire detection but also the early detection of abnormal signs related to suicide attempts (e.g., a rapid increase in gas concentration in a confined space, smoke generation caused by charcoal briquettes, etc.). When such dangerous situations occur, the invention provides a safety net that prevents suicide attempts in advance or enables rescue within the golden time by transmitting an emergency rescue signal to the outside along with a visual warning display.

[0026] Furthermore, considering the characteristics of vulnerable groups with a high proportion of residents in aging housing, the present invention provides a system that can be easily installed and expanded through wireless power sharing and connecting members without complex wiring work. This contributes to enabling more socially disadvantaged individuals to enjoy the benefits of smart care services by lowering installation costs and entry barriers to promote widespread adoption.

[0027] In addition, the present invention can convey clear evacuation information to the hearing impaired or residents in a state of psychological panic by displaying intuitive icons or text on an LED lamp during emergencies, and can also be utilized as therapy lighting to promote the psychological stability of residents during normal times, thereby expecting the additional effect of alleviating depression. Brief explanation of the drawing

[0028] The present invention will become more apparent from the following description together with the accompanying drawings. FIG. 1(a) is a schematically exploded view of an LED lamp according to one embodiment of the present invention. FIG. 1(b) is a schematically exploded view of an LED lamp according to another embodiment of the present invention. FIG. 2 is a rear view of the LED module after removing the frame according to one embodiment of the present invention. FIG. 3 is a front view of the LED module after removing the cover according to one embodiment of the present invention. Figure 4 is an example of an LED lamp system in which multiple LED lamps are combined. FIGS. 5(a) and FIGS. 5(b) illustrate an example of an LED lamp system. Specific details for implementing the invention

[0029] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following detailed description is provided to facilitate a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, this is merely illustrative and the present invention is not limited thereto.

[0030] In describing the embodiments of the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the present invention. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification. Terms used in the detailed description are intended merely to describe the embodiments of the present invention and should not be limiting in any way. Unless explicitly stated otherwise, expressions in the singular form include the meaning of the plural form. In this description, expressions such as "include" or "comprise" are intended to refer to certain characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof, and should not be interpreted to exclude the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof other than those described.

[0031] For example, expressions such as "identical" and "to be identical" indicate not only a strictly identical state, but also a state where tolerances or differences exist in the degree to which the same function is obtained.

[0032] For example, expressions indicating relative or absolute arrangements, such as "in a certain direction," "along a certain direction," "parallel," "perpendicular," "to the center," "concentric," or "coaxial," not only strictly represent such arrangements but also indicate a state of relative displacement with respect to tolerances or angles or distances to which the same function is obtained.

[0033] The use of terms such as 'first, second, third' attached to the components mentioned below is intended solely to avoid confusion regarding the components being referred to, and is unrelated to the order, importance, or master-subordinate relationship between the components. For example, an invention including only the second component without the first component can be implemented.

[0034] As used in this specification, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0036] FIG. 1(a) is a schematic exploded view of an LED lamp according to one embodiment of the present invention.

[0037] An LED lamp (10) according to one embodiment of the present invention may include an LED module part (1), a frame (2) forming a receiving space (29) that accommodates the LED module part (1), and a cover (3) coupled to the frame (2) to cover the receiving space (29) so as to prevent exposure of the LED module part (1).

[0038] The LED frame (2) can serve as a support to fix the LED lamp (10) to a desired position, as well as to support the LED module (1) and the cover (3). The LED frame (2) can also perform the function of providing a part where a fastening member (25, see FIG. 4) is connected so that a plurality of LED lamps (10) can be connected vertically or horizontally in the same plane adjacent to each other.

[0039] The LED frame (2) may include side and bottom surfaces. However, the LED frame (2) may not be closed but may include a plurality of through holes (not shown) that are capable of communicating with the outside. Through this, the inside and outside of the LED lamp (10) can communicate with each other.

[0040] The above receiving space (29) may be formed by the inner surface (28) of the LED frame (2). The above receiving space (29) may be formed by combining the cover (3) with the LED frame (2). The cover (3) and the LED frame (2) may be combined to accommodate an LED module (1) inside and perform the function of protecting the LED module (1) from the outside.

[0041] The above receiving space (29) is not a closed space and can communicate with the outside through the cover (3) or the LED frame (2).

[0042] The LED module (1) may include a plurality of LEDs (11) that emit light according to electrical input, a support plate (13) on which the plurality of LEDs (11) are arranged, and a control unit (19) that supplies power to and controls the plurality of LEDs (11) and can communicate with the outside when necessary. The control unit (19) can communicate with the outside (e.g., a user's portable terminal device or an external monitoring center) wirelessly. For example, the control unit (19) can communicate with the outside using a short-range wireless communication network such as Bluetooth, Wi-Fi, Zigbee, Z-Wave, or NFC. As another example, the control unit (19) can communicate with the outside using a low-power wide-area wireless network such as LoRa, SigFox, LTE-M, NB-IoT, etc.

[0043] For example, the control unit (19) may perform the role of a router for Wi-Fi connection.

[0044] The control unit (19) may be positioned opposite to the plurality of LEDs (11) with the support plate (13) in between. This is to prevent the light emitted from the plurality of LEDs (11) from being blocked by the control unit (19) because the plurality of LEDs (11) are positioned facing the forward direction toward the cover (3).

[0045] The cover (3) can be attached to the LED frame (2) to protect the LED module (1). The cover (3) may be formed of a material that allows at least a portion of the light generated from the LED module (1) to pass through. Additionally, the cover (3) may function as a diffuser to diffuse the light generated from the LED module (1). For example, the color of the cover (3) may be white. This is merely an example, and the cover (3) may have various colors depending on the user's choice.

[0046] The above cover (3) may include ribs (31, 32) that correspond one-to-one with the arrangement of the plurality of LEDs (11) and distinguish the area illuminated by the plurality of LEDs (11). The ribs (31, 32) may include a first rib (31) arranged in one direction and a second rib (32) arranged in a direction perpendicular to the one direction.

[0047] The first rib (31) and the second rib (32) are each divided into multiple parts to form a grid, and any one of the multiple LEDs (11) can be arranged to correspond within the grid. The first rib (31) and the second rib (32) can extend from the cover (3) toward the LED module part (1).

[0048] FIG. 1(b) is a schematic exploded view of an LED lamp according to another embodiment of the present invention. Since the description of other components is the same as in FIG. 1(a), only the cover (3) is described.

[0049] As described in FIG. 1(a), the cover (3) can be attached to the LED frame (2) to protect the LED module (1). The cover (3) may be formed of a material that allows at least a portion of the light generated from the LED module (1) to pass through. Additionally, the cover (3) may function as a diffuser to diffuse the light generated from the LED module (1). Unlike FIG. 1(a), the cover (3) may be formed as a single flat surface without ribs. If the light irradiated from the LED module (1) does not reach the user directly but passes through the cover (3) to reach the user, and if the cover (3) performs the function of preventing this, the shape of the cover (3) may be different.

[0051] FIG. 2 is a rear view of the LED module after removing the frame according to one embodiment of the present invention.

[0052] The above frame (2) is indicated by a dotted line, and the above LED module part (1) is indicated by a solid line. Therefore, the area of ​​the above LED module part (1) projected along the direction from the cover (3) toward the above frame (2) will be smaller than the area of ​​the above frame (2).

[0053] Referring to FIG. 2, the control unit (19) may be positioned at the rear of the support plate (13, see FIG. 1(a) or FIG. 1(b)). FIG. 2 illustrates an example in which the position of the control unit (19) is located in the center of the rear of the LED module unit (1). However, the position of the control unit (19) may be located anywhere at the rear of the support plate (13) in the receiving space (29, see FIG. 1(a) or FIG. 1(b)).

[0054] The LED module (1) may include a charging unit (15) located on each of the inner sides (28) of the frame (2). The charging unit (15) may be positioned at the rear of the support plate (13), just like the control unit (19). This is to prevent the charging unit (15) from blocking the light emitted from the LED module (1). Additionally, for the sake of explanation, the electrical wiring or circuit board between the control unit (19) and the charging unit (15), and the electrical wiring or circuit board between the control unit (19) and a plurality of LEDs (11, see FIG. 1(a) or FIG. 1(b)) have been omitted in FIG. 2.

[0055] The above charging unit (15) is intended to wirelessly supply power to an adjacent LED lamp (10) or to wirelessly receive power from an adjacent LED lamp (10). That is, when the charging unit (15) of one LED lamp (10) is located within a preset distance from the charging unit (15) of an adjacent LED lamp (10), power can be supplied or received from each other.

[0056] Through this, when multiple LED lamps (10) are arranged adjacent to each other, if only one of the LED lamps (10) is connected to the power source via a wire, the remaining LED lamps (10) can receive power wirelessly through the charging parts (15) facing each other.

[0057] Therefore, when the plurality of LED lamps (10) are installed in a building with conventional electrical wiring, separate electrical wiring for each of the plurality of LED lamps (10) is not required, making it very easy to install the plurality of LED lamps (10). In addition, since the arrangement of the plurality of LED lamps (10) can be changed according to the user's choice, the freedom of installation of the plurality of LED lamps (10) can also be improved.

[0058] Since the arrangement of the plurality of LED lamps (10) depends on the user's choice, the charging unit (15) can be placed on each inner side (28) to enable wireless charging between adjacent LED lamps (10) regardless of how they are arranged. Additionally, since the position of the charging unit (15) must be standardized for wireless charging of an adjacent pair of LED lamps (10), the position of the charging unit (15) can preferably be the center of the inner side (28).

[0059] FIG. 3 is a front view of the LED module after removing the cover according to one embodiment of the present invention.

[0060] Referring to FIGS. 2 and FIGS. 3, the charging part (15) extends from the support plate (13) and can come into contact with the inner surface (28) of the frame (2). Accordingly, when viewed as in FIG. 3, the portion of the charging part (15) that is covered by the support plate (13, see FIG. 1(a) or FIG. 1(b)) is shown as a dotted line, and the portion that extends beyond the support plate (13) toward the frame (2) is shown as a solid line.

[0061] Referring to FIG. 3, the LED lamp (10) may include a sensor unit (121 to 124) that is electrically connected to the control unit (19) to transmit and receive signals. The sensor unit (121 to 124) may include a first sensor (121) that detects motion, a second sensor (122) that detects gas (e.g., carbon monoxide and / or hydrocarbon gas), a third sensor (123) that detects temperature and humidity, and a fourth sensor (124) that detects smoke.

[0062] The LED lamp (10) may include at least one of the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124). That is, the LED lamp (10) may include all of the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124) to perform all detection functions. Alternatively, a plurality of LED lamps (10) may each include different sensors to perform different detection functions.

[0063] The LED lamp (10) may include additional sensors for other functions in addition to the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124).

[0064] The first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124) may be interchangeable. Interchangeability means that the electrical wiring connections with the control unit (19) are all identical, so they are not installed in specific locations, but can be connected to the control unit (19) and perform the same function even if they are located in the place where other sensors are to be attached. For example, any one of the second sensor (122) to the fourth sensor (124) may be attached to the place of the first sensor (121). This means that, through a modular design, it is possible to add other sensors or replace existing sensors to achieve the desired function.

[0065] As described above, since the cover (3) and the frame (2) can communicate with the outside even when combined with each other, there will be no problem in performing each function even if the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124) are located in the receiving space (29). In addition, since the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124) are located on the inner surface (28), they can detect external changes the fastest compared to other internal locations.

[0066] FIG. 3 illustrates the locations of the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124), but this is merely an example, and the locations of the first sensor (121), the second sensor (122), the third sensor (123), and the fourth sensor (124) may be located at the same corner or at different corners.

[0068] Referring to FIG. 1(a), FIG. 1(b), FIG. 2 and FIG. 3, an LED lamp (10) according to one embodiment of the present invention may include a frame (2) that can be fixed to the outside and has a receiving space (29) inside, a cover (3) that is detachably coupled to the frame (2) and covers the receiving space (29), a support plate (13) that is placed in the receiving space (29) and has a plurality of LEDs (11) arranged at a predetermined interval on one side, a charging unit (15) located on each inner side (28) of the frame (2), a first sensor (121) that detects human motion and is detachably coupled to one inner side (28) of the frame (2), and a control unit (19) that controls the plurality of LEDs (11), the charging unit (15), and the first sensor (121) on the other side of the support plate (13) and is capable of communicating with the outside.

[0069] When the first sensor (121) detects human motion, the control unit (19) can determine that there is a person in the space where the LED lamp (10) is installed.

[0070] Additionally, the LED lamp (10) may be detachably coupled to one inner side (28) of the frame (2) or optionally coupled to the first sensor (121), and may further include a second sensor (122) that detects gas leakage and is controlled by the control unit (19).

[0071] When the second sensor (122) detects that the concentration of at least one of carbon monoxide, methane, butane, or propane is greater than a preset concentration, the control unit (19) may determine that there is a risk of fire, explosion, or suffocation. In particular, when combined with the first sensor (121), the control unit (19) may determine that there is an emergency situation.

[0072] Additionally, the LED lamp (10) may be detachably coupled to one inner side (28) of the frame (2) or optionally coupled to either the first sensor (121) or the second sensor (122), and may further include a third sensor (123) that detects external temperature and humidity and is controlled by the control unit (19).

[0073] If the temperature or humidity measured by the third sensor (123) is greater than or equal to a preset value, the control unit (19) may determine that there is an event such as a fire or steam leak. In particular, in combination with the first sensor (121), the control unit (19) may determine that there is an emergency situation.

[0074] Additionally, the LED lamp (10) may be detachably coupled to one inner side (28) of the frame (2) or optionally coupled to any one of the first sensor (121), the second sensor (122), and the third sensor (123), and may further include a fourth sensor (124) that detects external smoke and is controlled by the control unit (19).

[0075] When the fourth sensor (124) detects smoke, the control unit (19) may determine that there is a risk of fire. In particular, when combined with the first sensor (121), the control unit (19) may determine that there is an emergency situation.

[0076] That is, the control unit (19) can display a predetermined indication or transmit the detected information to the outside through the plurality of LEDs (11) when the first sensor (121) detects motion and determines that a person is present, and when any one of the second sensor (122), the third sensor (123), and the fourth sensor (124) detects an abnormality.

[0077] Additionally, the control unit (19) can output a predetermined indication through the plurality of LEDs (11) when the second sensor (122) detects a gas leak, when the third sensor (123) detects a temperature above a preset level, or when the fourth sensor (124) detects smoke. This is to inform people in the space where the LED lamp (10) is installed that there is a need to evacuate urgently. This is described later in FIG. 5.

[0078] For example, the control unit (19) can transmit the current situation to a user's portable terminal device (e.g., a smartphone) or an external emergency center.

[0079] Meanwhile, the control unit (19), the charging unit (15), and the first sensor (121) to the fourth sensor (124) are all accommodated in the receiving space (29), and since the cover (3) is coupled to the frame (2), the exterior of the LED lamp (10) can form a smooth surface without any protruding parts. This can enhance the aesthetic appeal of the LED lamp (10).

[0080] Figure 4 is an example of an LED lamp system in which multiple LED lamps are combined.

[0081] Specifically, FIG. 4 is an example of the plurality of LED lamps (10) viewed from the rear. That is, it shows the back side attached to a wall or ceiling rather than the light-emitting surface of the LED module (1), clearly showing the arrangement of the charging unit (15) provided on the four sides of each frame (2) and the connection relationship through the fastening member (25). At this time, when viewed from the rear, the charging unit (15) may be located on substantially the same plane as the outer surface of the frame (2) or formed by being recessed to a certain depth, which is intended to prevent interference when closely coupled with adjacent LED lamps (10) and to maximize wireless power transmission efficiency.

[0082] The above LED lamp system (100) may include a plurality of LED lamps (10) that can be arranged according to the user's selection. The plurality of LED lamps (10) may be arranged such that at least one pair of LED lamps (10) are adjacent to each other. Here, being adjacent to each other means that one corner or one side (one side in a two-dimensional plane) is positioned to face each other. This is because, for wireless charging, a pair of facing charging parts (15) must be located within a pre-set interval. The pre-set interval refers to a physical separation distance at which electromagnetic induction or magnetic resonance phenomena occur effectively during wireless power transmission, thereby maintaining a power transmission efficiency of at least 70%, and typically ranges from a few millimeters (mm) to a few centimeters (cm). Therefore, it is desirable that the shape of the frame (2) be precisely machined so that the charging parts (15) can maintain an alignment state.

[0083] An LED lamp system (100) according to one embodiment of the present invention may include a plurality of LED lamps (10) and a fastening member (25) that connects each frame (2) of adjacent LED lamps (10) among the plurality of LED lamps (10). The plurality of LED lamps (10) are arranged such that one charging unit (15) included in one LED lamp (10) and one charging unit (15) included in another LED lamp (10) that contacts the one LED lamp (10) are capable of wireless charging. When power is supplied to the one LED lamp (10) via a wired connection, the other LED lamp (10) can receive power wirelessly through the one charging unit (15) included in the one LED lamp (10) and the other charging unit (15) included in the other LED lamp (10). This power supply method implements a wireless power relay system in the form of a 'daisy chain,' which has the advantage that all adjacent LED lamps (10) can sequentially share power by connecting only one main power source (Master Power) without complex wiring work on the inner walls of the building. At this time, the charging unit (15) may have a dual-mode antenna structure capable of selectively or simultaneously performing the functions of a transmitting coil (Tx Coil) and a receiving coil (Rx Coil), and can actively switch between a power receiving mode and a power sending mode according to the switching control of the control unit (19).

[0084] For example, FIG. 4 illustrates an example in which four LED lamps (10) are arranged in two rows and two columns. The first LED lamp (101) and the fourth LED lamp are arranged adjacent to the second LED lamp (102) and the third LED lamp (103), respectively. When the first LED lamp (101) is connected to the outside via a wire, one charging unit (15) of the second LED lamp (102) can receive power wirelessly from one charging unit (15) of the first LED lamp (101) facing it. Another charging unit (15) of the second LED lamp (102) can wirelessly transmit power to one charging unit (15) of the fourth LED lamp (104) facing it. Likewise, one charging unit (15) of the third LED lamp (103) can receive power wirelessly from one charging unit (15) of the first LED lamp (101) facing it. Another charging unit (15) of the third LED lamp (103) can wirelessly transmit power to one charging unit (15) of the fourth LED lamp (104) facing it. That is, the first LED lamp (101) directly connected to a wired power source becomes the Master Node, the second LED lamp (102) and the third LED lamp (103) become the first Slave Nodes, and the fourth LED lamp (104) becomes the second Slave Node, thereby forming a hierarchical power transmission path. At this time, considering the power transmission efficiency of each stage, the control unit (19) of the first LED lamp (101) calculates the total amount of power required by the entire system and manages the input power to handle it, and the control unit (19) of the lamps located in the intermediate path can drive a boost converter to compensate for voltage drop so that sufficient light can be emitted even from the fourth LED lamp (104) at the end.

[0085] For stable installation on an exterior wall or ceiling, the plurality of LED lamps (10) can be connected to adjacent LED lamps by a fastening member (25). That is, the fastening member (25) can connect the frames (2) of adjacent LED lamps to each other. The fastening member (25) serves not only as a simple mechanical coupling means but also as an alignment member that guides the central axes of the facing charging parts (15) to align precisely. As a specific embodiment, the fastening member (25) may have a magnetic connector using magnetic force, a clip for mechanical coupling, or a sliding rail coupling structure. In particular, using a magnet makes installation and removal easy, and provides a "click" sound upon installation, allowing the user to intuitively recognize that it has been installed correctly. Additionally, the fastening member (25) may include a double locking structure to prevent the lamps from falling due to earthquakes or external impacts.

[0086] As another example, an LED lamp system (100) according to one embodiment of the present invention may include a first LED lamp (101) and a second LED lamp (102) disposed adjacent to one side of the first LED lamp (101). In this case, the system may be a set composed of two modules as the minimum unit, and has modular expandability that allows the user to infinitely expand it to three, four, or more than n units as needed.

[0087] The first LED lamp (101) includes a first sensor (121) that detects human motion, and the second LED lamp (102) may include a second sensor (122) that detects gas (e.g., carbon monoxide or hydrocarbon gas). This means that each lamp module forms a heterogeneous sensor network that performs different functions. By distributing functions instead of mounting all sensors in a single module, the unit cost of the product can be lowered, and problems such as heat generation or electromagnetic interference (EMI) between sensors can be minimized.

[0088] When the first LED lamp (101) and the second LED lamp (102) are combined, one charging part (15) of the first LED lamp (101) and one charging part (15) of the second LED lamp (102) can face each other at a predetermined distance to form a pair of charging parts (15) capable of wireless charging. This combined structure provides a plug-and-play environment in which power and data links are simultaneously formed by 'docking' alone, without the need for a physical power cable connection.

[0089] The control unit (19) of the first LED lamp (101) and the control unit (19) of the second LED lamp (102) can wirelessly transmit and receive signals to and from each other through the pair of charging units (15). The signal transmission and reception method may adopt an in-band communication method (e.g., a wireless version of Power Line Communication) in which data is modulated and carried on a carrier wave for power transmission, or an out-band communication method using a separate IR (infrared) port or NFC module placed around the charging unit (15). Through this, the occupancy information of a person detected by the first sensor (121) and the gas leak risk information detected by the second sensor (122) are shared in real time, thereby enabling the implementation of an intelligent disaster prevention system that turns on evacuation guidance lights in the direction of a person in the event of a gas leak.

[0090] FIGS. 5(a) and FIGS. 5(b) illustrate an example of an LED lamp system.

[0091] FIG. 5(a) illustrates an example of an LED lamp system (100) in which multiple (specifically 4) LED lamps (10) are arranged in a 2x2 grid, and FIG. 5(b) illustrates another example of an LED lamp system (100) in which multiple LED lamps (10) are arranged in a single line. In this case, the grid-like arrangement in a 2x2 grid as in FIG. 5(a) is suitable for installation in spaces that need to provide overall lighting over a wide area, such as the center of a living room, master bedroom, or office ceiling, and can form a hub-shaped structure that can stably distribute signals and power in four adjacent directions. On the other hand, the single-line arrangement as in FIG. 5(b) is suitable for installation in narrow and long passageways, such as apartment hallways, entrance hallways, building emergency stairs, or verandas, and has structural advantages that can maximize visibility in guiding the user's movement path through sequential lighting or guiding an emergency escape route with a continuous flow of arrows.

[0092] As described above, the plurality of LED lamps (10) included in the LED lamp system (100) can be arranged in various modified ways depending on the user's selection or the environment in which they are installed. That is, the user can freely assemble and expand the plurality of LED lamps (10) into any geometric shape, such as an 'L' shape, 'T' shape, 'U' shape, or cross (+) shape, to match the area of ​​the wall or ceiling where the LED lamp system (100) is to be installed, the interior structure, or the shape of the area requiring illumination. This is because the charging unit (15) and the fastening member (25) provided on each side of the LED lamp (10) support a modular method, and this structural flexibility significantly reduces the installation constraints of the system and facilitates the replacement of specific modules during maintenance.

[0093] Referring to FIG. 5(a) and FIG. 5(b), an LED lamp system (100) according to one embodiment of the present invention may include a first LED lamp (101), a second LED lamp (102), a third LED lamp (103), and a fourth LED lamp (104). Here, the first to fourth LED lamps (101 to 104) are distinguished for convenience of explanation and may be unit modules having the same physical specifications and interfaces, and their roles and assigned identification numbers (IDs) may be variably determined according to user settings or connection locations.

[0094] The first LED lamp (101), the second LED lamp (102), the third LED lamp (103), and the fourth LED lamp (104) may each include a first sensor (121, see FIG. 3) for detecting human motion, a second sensor (122, see FIG. 3) for detecting gas leaks, a third sensor (123, see FIG. 3) for detecting temperature and humidity, and a fourth sensor (124, see FIG. 3) for detecting smoke. This is intended to lower the manufacturing cost of individual lamps and minimize interference between sensors by distributing different functions among multiple LED lamps instead of mounting all types of sensors within a single LED lamp. Additionally, since hazardous elements such as fire or gas leaks spread with the airflow, detecting different environmental variables at multiple lamps spaced apart from each other may be advantageous for detecting hazardous situations throughout the entire space at an early stage, rather than detecting them at a single point.

[0095] Accordingly, the first LED lamp (101), the second LED lamp (102), the third LED lamp (103), and the fourth LED lamp (104) can each perform different functions. The first LED lamp (101) can act as a main trigger to control the on / off of the entire system by determining the presence or absence of occupants during normal operation, and the second to fourth LED lamps (102 to 104) can act as monitors to monitor environmental safety. Although each lamp performs physically separate functions, it is desirable that they operate organically in conjunction with each other as a single integrated disaster prevention system through wired or wireless communication between the control units (19).

[0096] For example, when the second LED lamp (102) detects a gas leak (or detection of gas exceeding a preset concentration), the first LED lamp (101) and the second LED lamp (102) can each output different indications through an LED (11, see FIG. 1(a) or FIG. 1(b)). At this time, the control unit (19) of the second LED lamp (102) generates a gas detection signal and immediately transmits it to the adjacent first LED lamp (101), and this signal may include the type of danger (gas), the danger level, and the detected location information.

[0097] The first LED lamp (101) can visually indicate the evacuation direction through an arrow display. Here, the direction of the arrow is not fixed, but may be a dynamic direction calculated in real-time by the control unit (19) to indicate a direction away from the location of the second LED lamp (102) where gas is detected, or a pre-set safe emergency exit direction. For example, if gas is detected at the second LED lamp (102) on the right in FIG. 5(a), the first LED lamp (101) on the left may display an arrow pointing to the left or downward direction to prevent the user from entering the danger zone.

[0098] The second LED lamp (102) can visually indicate that gas is leaking by outputting the letter G. In this case, the letter 'G' is an abbreviation for 'Gas' to aid intuitive recognition, and for a more effective warning, it can be lit in a warning color such as red or orange, or flash rapidly to draw the user's attention. Furthermore, it can not only display the letter but also visualize the level of danger by adjusting the brightness of the letter or changing the background color according to the gas concentration.

[0099] In addition, the control unit (19) of the first LED lamp (101) and / or the control unit (19) of the second LED lamp (102) may transmit information detected externally. The externally may include a user's smartphone application, a wall pad, a building management server, or a 119 fire control system. In particular, since it may be difficult to perceive the situation while sleeping with only visual notifications in the case of a single-person household or a hearing-impaired person, it is desirable for the control unit (19) to simultaneously transmit vibration and push notifications to the user's wearable device or smartphone to support the prevention of solitary death and rapid evacuation.

[0100] As another example, when the third LED lamp (103) detects a temperature above a preset temperature, the first LED lamp (101) and the third LED lamp (103) can each output different indications through the LED (11). The preset temperature may mean a rapid temperature rise that could be considered a fire (e.g., a rise of more than 10 degrees per minute) or an absolute high temperature (e.g., more than 70 degrees).

[0101] The first LED lamp (101) can visually indicate the evacuation direction through an arrow display. Similar to the operation described earlier in the event of a gas leak, this performs the function of guiding the optimal path to avoid the area where high temperature is detected.

[0102] The third LED lamp (103) can visually display the letter H, which signifies high temperature. The letter 'H' stands for 'Heat' or 'Hot' and is intended to clearly inform the user of situations such as when heat is detected before smoke in the early stages of a fire or when a heating appliance overheats. Depending on the situation, an icon in the shape of a thermometer or a pictogram in the shape of a flame may be displayed alternately to enhance the ability to convey information.

[0103] Additionally, the control unit (19) of the first LED lamp (101) and / or the control unit (19) of the third LED lamp (103) may transmit information detected externally. The information transmitted at this time includes currently measured temperature data, which can be used as basic data for an external guardian or manager to determine whether there is a malfunction or to remotely monitor the progress of a fire.

[0104] As another example, when the fourth LED lamp (104) detects smoke, the first LED lamp (101) and the fourth LED lamp (104) can each output different indications through the LED (11). Smoke detection can be performed using a photoelectric or ionization sensor, and since smoke is a major cause that blocks visibility and makes evacuation difficult, it is desirable that the first LED lamp (101) and the fourth LED lamp (104) be controlled to emit light with a higher brightness than usual so that they can be identified even in smoke.

[0105] The first LED lamp (101) can visually indicate the evacuation direction through an arrow display. In particular, considering the characteristic of smoke rising from the ceiling, the arrow display is not simply lit up, but rather a moving effect is applied so that the LED lights up in a flowing manner in the evacuation direction, thereby inducing a user in a panic state to intuitively recognize the direction of movement.

[0106] The above-mentioned fourth LED lamp (104) can visually display an icon representing smoke. For example, it can display a cloud-shaped or wave-shaped icon, or display the text 'SMOKE' in a scrolling manner. In the event of a complex disaster situation, such as when smoke and high temperature are detected simultaneously due to a fire, the lamps where the corresponding sensors are located may each display a warning, or a single lamp may operate in a multi-warning mode that periodically alternates between displaying 'H' and a smoke icon.

[0107] In addition, the control unit (19) of the first LED lamp (101) and / or the control unit (19) of the fourth LED lamp (104) can transmit information detected externally. This transmission of information can go beyond simply providing notifications and can be linked to active disaster prevention measures, such as automatically opening windows to help with smoke exhaust or unlocking the front door lock to facilitate the entry of rescue teams by linking with a smart home system.

[0108] Referring to FIG. 5(a) and FIG. 5(b), since gas leakage, high temperature, and smoke are all detected when a fire occurs, the first LED lamp (101) can display an arrow indicating the evacuation direction, the second LED lamp (102) can simultaneously display the letter G indicating gas leakage, the third LED lamp (103) can simultaneously display the letter H indicating high temperature, and the fourth LED lamp (104) can simultaneously display an icon indicating smoke.

[0109] At this time, the simultaneous display of the first LED lamp (101) to the fourth LED lamp (104) is intended to allow the user to intuitively grasp the type of danger and countermeasures at a glance in an emergency situation. More specifically, when a fire occurs, toxic gases, a rapid rise in temperature, and smoke that obscures visibility occur in combination. The LED lamp system (100) according to one embodiment of the present invention is composed of a plurality of LED lamps equipped with different sensors (second sensor to fourth sensor) that are combined in a modular manner, thereby enabling precise individual detection of these complex risk factors while simultaneously providing an integrated alarm at the overall system level. For example, the direction of the arrow displayed by the first LED lamp (101) may not be a simply fixed direction, but a variable direction determined by mutual communication and calculation of the control units (19) to face a safe zone where smoke or high temperature is not detected. That is, if smoke is detected in the direction where the fourth LED lamp (104) is located, the first LED lamp (101) can display an arrow pointing in the opposite direction to enable active evacuation guidance.

[0110] Here, "indication" refers to the control unit (19) of each lamp outputting a specific indication externally by turning on / off a plurality of LEDs (11). The indication may include not only a static image, but also blinking, changing colors (e.g., changing from white in normal conditions to red in emergencies), or a moving animation effect. This configuration is intended to maximize visibility for users in thick smoke or in a state of panic. Additionally, the plurality of LEDs (11) are arranged in a dot matrix form, allowing for flexible expression of various information such as alphabets, numbers, special symbols, and pictograms according to the programming of the control unit (19). Furthermore, the control unit (19) may refer to a pre-stored look-up table and control the form of the indication or the blinking speed differently according to the level of the detected sensor value (e.g., gas concentration level, temperature level), thereby differentially indicating the degree of urgency of the danger.

[0111] As another example, the LED lamp system may include a first LED lamp (101) and a second LED lamp (102) adjacent to one side of the first LED lamp (101). In this case, the first LED lamp (101) and the second LED lamp (102) are physically separate entities, but when combined, they operate as a single integrated lighting system and have a modular structure that can be easily expanded or contracted by the user as needed.

[0112] The first LED lamp (101) and the second LED lamp (102) can be joined by a fastening member (25). The fastening member (25) not only provides a simple mechanical connection but also serves as an alignment guide to ensure that the charging portions (15) between adjacent lamps face each other at an accurate position. The fastening member (25) can be implemented in various forms, such as a magnetic coupling method using a magnet, a hook-type fitting method, or a screw coupling method using a separate bracket, and it is desirable to provide a strong fixing force so that the connection between the LED lamps is not released even by vibration or external impact.

[0113] If the first LED lamp (101) is supplied with power via a wire, the second LED lamp (102) can be wirelessly charged by means of one charging unit (15) of the first LED lamp (101) and one charging unit (15) of the second LED lamp (102) facing it. This implements a wireless daisy chain method of power supply, providing groundbreaking convenience by allowing power to be supplied to the entire system using only one main power source (wired power connected to the first LED lamp (101)) without adding complex electrical wiring work to the inner walls of the building. At this time, the wireless charging method may utilize an inductive coupling or a magnetic resonance coupling, and to increase power transmission efficiency, a shielding material may be placed around the charging unit (15) to minimize electromagnetic interference to adjacent control units (19) or sensors.

[0114] The first LED lamp (101) includes a first sensor (121) that detects human motion, and the second LED lamp (102) includes a second sensor (122) that detects gas leakage. When the second sensor (122) detects gas leakage, the control unit (19) of the first LED lamp (101) and the control unit (19) of the second LED lamp (102) can output different displays through the plurality of LEDs (11) of the first LED lamp (101) and the plurality of LEDs (11) of the second LED lamp (102), respectively. For example, the second LED lamp (102) that detects a gas leak flashes the text 'G' or 'GAS' in red to indicate the cause of the danger, and the adjacent first LED lamp (101) normally acts as a light source, but upon receiving an emergency signal, flashes high-intensity white light or indicates the direction of the emergency exit. Regardless of the type of sensor equipped in each lamp, the entire system can organically cooperate to create an optimal evacuation environment. If no human movement is detected through the first sensor (121), an intelligent operation scenario is also possible in which the illumination is lowered to reduce unnecessary power consumption, and then illuminates to maximum brightness the moment a person is detected to aid in evacuation.

[0115] This is because the control unit (19) of the first LED lamp (101) and the control unit (19) of the second LED lamp (102) can wirelessly transmit and receive signals to and from each other through the pair of charging units. The signal transmission and reception may utilize a wireless communication module (Bluetooth, Zigbee, etc.) separate from power transmission, or an in-band communication method that transmits data carried on a wireless power transmission carrier wave. Through this, lamps that are physically combined and share power automatically form a network group (Ad-hoc Network) without a complex pairing process, and can share status information and control commands in real time.

[0116] That is, when the control unit (19) of the second LED lamp (102) detects an abnormality, it transmits a signal to the control unit (19) of the first LED lamp (101), and the control unit (19) of the first LED lamp (101) receives this and controls a plurality of LEDs (11) of the first LED lamp (101) to output a display. This distributed control method significantly improves the reliability and survivability of the system by ensuring that the emergency notification function is maintained through direct communication (Device-to-Device) between the lamps, even in extreme situations where the central server goes down or communication is cut off.

[0117] In addition, the control unit (19) of the first LED lamp (101) and / or the control unit (19) of the second LED lamp (102) can transmit information detected externally. Here, "externally" may include a user's smartphone, an apartment management office server, a 119 fire control center, etc. The transmitted information may include not only the fact that a danger has occurred, but also the exact location where the danger was detected (which room or zone), the type and concentration of the detected gas, the current temperature, and information on the presence or absence of occupants and movement patterns identified through the first sensor (121), thereby contributing to securing the golden time by identifying the situation in advance before rescue workers arrive at the scene.

[0118] When the second sensor (122) detects a gas leak, at least one of the control unit (19) of the first LED lamp (101) and the control unit (19) of the second LED lamp (102) can transmit the detected information to the outside. In particular, the first LED lamp (101), which is connected to a wired power source and has abundant communication resources, acts as a master to handle external communication, while the second LED lamp (102) acts as a slave to focus on collecting detection data, thereby increasing system efficiency.

[0119] The second LED lamp (102) and / or the second LED lamp (102) may additionally include the third sensor (123) or the fourth sensor (124). That is, a 'multi-sensor module' form in which multiple sensors are mounted in combination within a single LED lamp frame is also included in the scope of the present invention. This is advantageous in environments where it is difficult to install multiple lamps due to limited space.

[0120] Additionally, the second LED lamp (102) may include the third sensor (123) or the fourth sensor (124) instead of the second sensor (122). This means that the user can selectively customize the necessary sensor modules according to the installation environment. For example, specialized configurations for different locations are possible, such as placing a lamp equipped with a gas sensor and a temperature sensor in the kitchen, or a lamp equipped with a motion sensor and a smoke sensor in the living room.

[0121] Accordingly, that is, the sensor of one LED lamp (10) is replaced with another sensor, and the output display may differ depending on the sensor. The control unit (19) supports a plug-and-play function that automatically recognizes the type of connected sensor, so that when a sensor is replaced, a pre-set UI (User Interface) or emoticon matching the sensor can be displayed on the LED panel without any separate complex settings. This increases the convenience of maintenance and allows for easy upgrading to a new type of sensor as sensor technology advances.

[0122] Although various embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications can be made to the above-described embodiments without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof. Explanation of the symbols

[0123] *10: LED lamp 1: LED module section 121: First sensor 122: Second sensor 123: Third sensor 124: 4th sensor 15: Charging part 19: Control unit 2: Frame 25: Fastening member 29: Accommodation space 3: Cover

Claims

Claim 1 An LED lamp comprising: a frame that includes an internal receiving space and can be fixed externally; a cover that is detachably coupled to the frame and covers the receiving space; a support plate disposed in the receiving space and having a plurality of LEDs arranged at predetermined intervals on one side; a charging unit located on each inner side of the frame; a first sensor that detects human motion and is detachably coupled to one inner side of the frame; and a control unit on the other side of the support plate that controls the plurality of LEDs, the charging unit, and the first sensor and is capable of communicating with the outside. Claim 2 In claim 1, the LED lamp is detachably coupled to one inner side of the frame or optionally coupled to the first sensor, and further includes a second sensor that detects gas leakage and is controlled by the control unit. Claim 3 In paragraph 2, the LED lamp is detachably coupled to one inner side of the frame or selectively coupled to either the first sensor or the second sensor, and further includes a third sensor that detects external temperature and humidity and is controlled by the control unit. Claim 4 In paragraph 3, the LED lamp is detachably coupled to one inner side of the frame or optionally coupled to any one of the first sensor, the second sensor, and the third sensor, and further includes a fourth sensor that detects external smoke and is controlled by the control unit. Claim 5 In paragraph 4, the control unit is an LED lamp that outputs a predetermined indication through the plurality of LEDs when the second sensor detects a gas leak, when the third sensor detects a temperature above a preset temperature, or when the fourth sensor detects smoke. Claim 6 In paragraph 4, the control unit is an LED lamp that transmits information detected externally when the second sensor detects a gas leak, when the third sensor detects a temperature above a preset temperature, or when the fourth sensor detects smoke. Claim 7 An LED lamp system comprising: a frame having an internal receiving space and capable of being fixed externally; a cover detachably coupled to the frame to cover the receiving space; a support plate disposed in the receiving space and having a plurality of LEDs arranged at a predetermined interval on one side thereof; charging units located on each inner side of the frame; and a control unit on the other side of the support plate that controls the plurality of LEDs and the charging units and is capable of communicating with the outside; and a fastening member that combines the frame of the first LED lamp and the frame of the second LED lamp so that one charging unit of the first LED lamp and one charging unit of the second LED lamp face each other at a predetermined interval to form a pair of charging units capable of wireless charging; wherein, when power is supplied to the first LED lamp via a wire, the control unit of the first LED lamp and the control unit of the second LED lamp transmit power to the second LED lamp through the pair of charging units capable of wireless charging. Claim 8 In claim 7, the control unit of the first LED lamp and the control unit of the second LED lamp wirelessly transmit and receive signals to and from each other through the pair of charging units in an LED lamp system. Claim 9 In claim 8, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a second sensor that detects gas leakage, and when the second sensor detects gas leakage, the control unit of the first LED lamp and the control unit of the second LED lamp each output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp, respectively, in an LED lamp system. Claim 10 In claim 9, when the second sensor detects a gas leak, at least one of the control unit of the first LED lamp and the control unit of the second LED lamp transmits the detected information to the outside. Claim 11 In claim 9, the control unit of the first LED lamp outputs an indication indicating a preset escape direction through a plurality of LEDs of the first LED lamp, in an LED lamp system. Claim 12 In claim 8, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a third sensor that detects temperature and humidity; when the third sensor detects a temperature above a preset temperature, the control unit of the first LED lamp and the control unit of the second LED lamp each output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp, respectively. Claim 13 In claim 8, the first LED lamp includes a first sensor that detects human motion, and the second LED lamp includes a fourth sensor that detects smoke, and when the fourth sensor detects smoke, the control unit of the first LED lamp and the control unit of the second LED lamp each output different displays through a plurality of LEDs of the first LED lamp and a plurality of LEDs of the second LED lamp, respectively, in an LED lamp system.

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