JP2018010733A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which can inform a user of the occurrence of abnormality.SOLUTION: A lighting device 100 comprises: a light-emitting part 22; a power supply circuit 23 which supplies power to the light-emitting part 22; a control part 24 which performs abnormality detection processing for detecting abnormality of the light-emitting part 22 while the power is being supplied to the light-emitting part 22 by the power supply circuit 23; and a radio communication part 25 which transmits, on the basis of a result of the abnormality detection processing, at least one of abnormality information for indicating the abnormality of the light-emitting part 22 and normality information for indicating normality of the light-emitting part 22. If the radio communication part 25 fails to establish radio communication, the control part 24 causes the light-emitting part 22 to emit light in a predetermined mode by controlling the power supply circuit 23.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an illumination device using a light emitting element such as a light emitting diode (LED).

  Since LEDs are highly efficient and have a long lifetime, they are expected as new light sources in various lamps such as fluorescent lamps and incandescent lamps that have been conventionally known, and research and development of lamps using LEDs are underway. For example, Patent Document 1 discloses an LED lamp capable of power line communication.

JP2015-118909A

  By the way, when a large number of lighting devices are installed in a room of a large vehicle such as an automobile carrier, it is not easy to manage whether each of the large number of lighting devices is operating normally.

  The present invention provides an illumination device that can notify a user that an abnormality has occurred.

  An illumination device according to one embodiment of the present invention includes a light-emitting unit, a power supply circuit that supplies power to the light-emitting unit, and an abnormality in the light-emitting unit when power is supplied to the light-emitting unit by the power supply circuit. A wireless communication that transmits at least one of abnormality information indicating abnormality of the light emitting unit and normal information indicating normality of the light emitting unit based on a result of the abnormality detection processing, and a control unit that performs abnormality detection processing for detection The control unit causes the light emitting unit to emit light in a predetermined manner by controlling the power supply circuit when the wireless communication unit fails in wireless communication.

  The lighting device of the present invention can notify the user that an abnormality has occurred.

FIG. 1 is a diagram illustrating a functional configuration of the illumination system according to the embodiment. FIG. 2 is a diagram showing an illumination system used in a car carrier. FIG. 3 is an external perspective view showing the configuration of the illumination device according to the embodiment. FIG. 4 is an external perspective view of the illumination light source according to the embodiment. FIG. 5 is a diagram illustrating a functional configuration of the light emitting device according to the embodiment. FIG. 6 is a flowchart of Operation Example 1 of the lighting apparatus according to the embodiment. FIG. 7 is a flowchart of Operation Example 2 of the lighting apparatus according to the embodiment. FIG. 8 is a flowchart of Operation Example 3 of the lighting apparatus according to the embodiment. FIG. 9 is an external perspective view of a lighting device according to a modification.

  Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that each of the embodiments described below shows a comprehensive or specific example. Numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of constituent elements, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, and the overlapping description may be abbreviate | omitted or simplified.

  In the drawings of the following embodiments, the Z-axis direction is, for example, the vertical direction (vertical direction), and the Z-axis + side may be described as the upper side or the light emission side. Further, the Z-axis-side may be described as the lower side. The X-axis direction and the Y-axis direction are directions orthogonal to each other on a plane (horizontal plane) perpendicular to the Z-axis.

(Embodiment)
[Configuration of lighting system]
First, the structure of the illumination system which concerns on embodiment is demonstrated. FIG. 1 is a diagram illustrating a functional configuration of the illumination system according to the embodiment.

  As shown in FIG. 1, the lighting system 300 includes a plurality of lighting devices (lighting devices 100, 100 a, and 100 b) and a lighting management device 150. Although only three lighting devices are shown in FIG. 1, the lighting system 300 is used in, for example, a ship of a car carrier or a large building such as a commercial facility. In such a case, the number of lighting devices included in the lighting system 300 is, for example, about several tens to several hundreds.

  In the lighting system 300, each of the plurality of lighting devices has a function of detecting an abnormality of a light emitting unit included in the lighting device. For example, the illuminating device 100a performs the abnormality detection process of the light emission part which the said illuminating device 100a has, for example once a day. When the abnormality of the light emitting unit is detected by the abnormality detection process, the lighting device 100a transmits abnormality information indicating that the light emitting unit of the lighting device 100a is abnormal by wireless communication.

  At this time, the lighting device 100a installed at a position away from the lighting management device 150 cannot directly communicate with the lighting management device 150. Therefore, for example, the lighting device 100 relays abnormality information of the lighting device 100a to the lighting device 100b. After such relaying is repeated, the abnormality information of the lighting device 100a is finally received by the lighting management device 150. Thereby, each of a some illuminating device can notify a user that abnormality generate | occur | produced in the light emission part with which the said illuminating device is equipped.

  The lighting management device 150 is an information terminal such as a personal computer or a server device, and manages the states of a plurality of lighting devices included in the lighting system 300. The lighting management device 150 can store state information indicating the state of each of the plurality of lighting devices in a storage unit (not shown), and can display the state information as an image on a display unit (not shown). . Accordingly, the user can manage the states of the plurality of lighting devices through the lighting management device 150.

  In addition, when an abnormality occurs in the wireless communication function of any one of the plurality of lighting devices that relay the abnormality information, the lighting management device 150 may not be able to receive the abnormality information. In such a case, in the lighting system 300, the light emitting unit of the lighting device that has failed in wireless communication blinks. Accordingly, the lighting system 300 can notify the user of the lighting device that has failed in the wireless communication.

  The application of the illumination system 300 as described above is not particularly limited. As described above, the lighting system 300 is used in a ship such as an automobile carrier ship, for example. FIG. 2 is a diagram showing an outline of a lighting system 300 used in an automobile carrier ship.

  Car carriers are loaded with vehicles such as private cars in a large cabin. Since it is difficult to repair the lighting device after the vehicle is loaded, it is desirable that the state of a large number of lighting devices be managed in advance. Thus, a system such as lighting system 300 is useful. In addition, since a car carrier is not handled as a passenger ship, the number of crew members is limited. Therefore, a system that can manage the states of a plurality of lighting devices with one lighting management device 150, such as the lighting system 300, is useful.

[Lighting device]
Next, the configuration of the illumination device 100 will be described. FIG. 3 is an external perspective view showing the configuration of the illumination device 100. In addition, since the structure of the illuminating device 100a and the illuminating device 100b is the same as that of the illuminating device 100, description is abbreviate | omitted.

  As illustrated in FIG. 3, the illumination device 100 includes two illumination light sources 10 and a main body 110.

  The main body 110 is attached to the ceiling with a fixture. The main body 110 includes two sets of sockets 120 that are electrically connected to the illumination light source 10 and to which the illumination light source 10 is attached. The main body 110 can be formed by, for example, pressing an aluminum steel plate. The outer surface of the main body 110 is a reflecting surface that reflects light emitted from the illumination light source 10 toward the room.

[Configuration of light source for illumination]
Next, the configuration of the illumination light source 10 will be described. FIG. 4 is an external perspective view of the illumination light source 10.

  As shown in FIG. 4, the illumination light source 10 is a straight tube LED lamp used as an alternative illumination of a straight tube fluorescent lamp. The illumination light source 10 includes a light emitting device 20, a cover 30, a first base 51, a second base 52, and an adhesive 60. Hereinafter, each component will be described in detail.

  First, the cover 30 will be described. The cover 30 is a light-transmitting cover that covers at least the light emitting side of the light emitting device 20. The cover 30 has a long cylindrical shape with the Y-axis direction as the height direction (longitudinal direction), and also functions as a housing that houses the light emitting device 20. Further, the cover 30 constitutes a part of the outline of the illumination light source 10.

  The base material of the cover 30 is, for example, glass, but may be a resin material such as polycarbonate. The cover 30 is a non-split type, but may be a split type.

  The cover 30 may have a light diffusion function for diffusing light from the light emitting device 20. Thereby, since the light emitted from the light emitting device 20 is diffused when passing through the cover 30, the brightness of the illumination light source 10 is made uniform.

  For example, a light diffusion film may be formed on at least one of the inner surface and the outer surface of the cover 30. Specifically, the light diffusion film is a milky white resin material containing a light diffusion material (fine particles) such as silica or calcium carbonate. In addition, at least one of the inside and the outside of the cover 30 may be provided with a lens structure for diffusing light, or may be provided with an uneven structure for diffusing light, or diffusing light. A dot pattern for printing may be printed. The base material of the cover 30 may include a light diffusing material.

  Next, the first base 51 and the second base 52 will be described. The first base 51 and the second base 52 are structures that are detachably attached to the socket 120 in order for the illumination light source 10 to receive power via the socket 120. Each of the first cap 51 and the second cap 52 is formed of, for example, an insulating resin. Each of the first base 51 and the second base 52 has a substantially bottomed cylindrical shape (cap shape), and the first base 51 covers one end of the cover 30 (the end on the Y axis + side), The second base 52 covers the other end of the cover 30 (end on the Y-axis side). The first base 51 and the second base 52 are, for example, a G13 base. The first base 51 has a first power receiving terminal 41, and the second base 52 has a second power receiving terminal 42.

  Each of the first power receiving terminal 41 and the second power receiving terminal 42 is formed of a set of conductive rod-shaped metal materials. The first power receiving terminal 41 and the second power receiving terminal 42 receive AC power from the outside of the illumination light source 10.

  The first power receiving terminal 41 receives AC power for causing the light emitting device 20 to emit light from the main body 110 by being attached to the socket 120 provided in the main body 110. The same applies to the second power receiving terminal 42. The first power receiving terminal 41 is, for example, a positive electrode terminal, and the second power receiving terminal 42 is, for example, a negative electrode terminal. Note that the AC power received by the first power receiving terminal 41 and the second power receiving terminal 42 is, for example, sinusoidal AC power having a frequency of 50 Hz or 60 Hz, similarly to the AC power supplied from the power system.

  As described above, the illumination light source 10 is a double-sided power supply method, but may be a single-sided power supply method. An example of the one-side power feeding type base is an L-shaped base conforming to JEL801 standardized by the Japan Electric Bulb Industry Association. In this case, one of the first power receiving terminal 41 and the second power receiving terminal 42 is a ground pin or a mounting pin that does not have a ground function.

[Light emitting device]
Next, the light emitting device 20 will be described with reference to FIG. 5 in addition to FIG. FIG. 5 is a diagram illustrating a functional configuration of the light emitting device 20.

  The light-emitting device 20 is an SMD-type light-emitting module in which surface-mounted (SMD: Surface Mount Device) type light-emitting elements 22a are arranged in a line on a long substrate 21. The light emitting device 20 emits light toward the cover 30. The light emitting device 20 is bonded to the inner surface of the cover 30 with an adhesive formed of, for example, a silicone resin.

  As shown in FIG. 5, the light emitting device 20 includes a light emitting unit 22, a power supply circuit 23, a control unit 24, a wireless communication unit 25, a time measuring unit 26, a storage unit 27, a resistor 28a, and a fuse 28b. And a diode bridge 28c. These components are arranged on the substrate 21, but some or all of them may be arranged on a member different from the substrate 21.

  The light emitting unit 22 includes a plurality of light emitting element groups in which a plurality of light emitting elements 22a are connected in series, and is formed by connecting a plurality of light emitting element groups in parallel. In the example of FIG. 5, six light emitting element groups are connected in parallel. The number of light-emitting elements constituting one light-emitting element group is not particularly limited, but is, for example, 18.

  The light emitting element 22a is a so-called SMD type light emitting element in which an LED chip and a phosphor are packaged, and emits white light, for example. The light emitting element 22a includes, for example, a resin container having a recess, an LED chip disposed (mounted) in the recess, and a sealing member (phosphor-containing resin) sealed in the recess. The plurality of light emitting elements 22 a are arranged (mounted) on the substrate 21 and are electrically connected by wiring (not shown) formed on the substrate 21.

  The power supply circuit 23 converts AC power supplied from the main body 110 (power system) into DC power, and supplies the converted DC power to the light emitting unit 22. Specifically, the power supply circuit 23 performs constant current driving for supplying a constant current to the light emitting unit 22. The power supply circuit 23 also supplies DC power to the control unit 24, the wireless communication unit 25, the time measuring unit 26, and the storage unit 27. Note that the power supply circuit 23 has a circuit configuration that can supply DC power to the control unit 24, the wireless communication unit 25, the time measuring unit 26, and the storage unit 27 even when the light emitting unit 22 is turned off.

  Specifically, the power supply circuit 23 is realized by, for example, a circuit including a bridge-type full-wave rectifier circuit including four diodes, but is realized by an AC-DC converter IC, a DC-DC converter IC, and the like. May be.

  The power supply circuit 23 supplies direct-current power to the light emitting unit 22 when a lighting instruction given by a user via a remote controller or the like is acquired by, for example, wired communication. Thereby, the light emission part 22 lights.

  In addition, when the power supply circuit 23 obtains an abnormality detection power supply instruction from the control unit 24, the power supply circuit 23 supplies the light emission unit 22 with DC power for abnormality detection that is less than the DC power for lighting the light emission unit 22. Specifically, the power supply circuit 23 supplies a DC voltage lower than the threshold voltage to the light emitting unit 22. The threshold voltage is, for example, the total of forward voltages (Vf) at which each of the light emitting elements 22a included in one light emitting element group starts to emit light. Thereby, the control part 24 can perform the abnormality detection process of the light emission part 22 without making the light emission part 22 light-emit.

  In addition, when the wireless communication unit 25 fails in wireless communication, the power supply circuit 23 causes the light emitting unit 22 to emit light in a predetermined mode different from light emission for normal illumination use based on the control of the control unit 24. Specifically, the power supply circuit 23 blinks the light emitting unit 22. In the case where the power supply circuit 23 corresponds to the dimming function, the power supply circuit 23 may cause the light emitting unit 22 to emit light darkly. The power supply circuit 23 may cause the light emitting unit 22 to emit light in a mode different from normal light emission (lighting) so that the user can recognize the failure of the wireless communication.

  The control unit 24 performs an abnormality detection process for detecting an abnormality of the light emitting unit 22 when power is supplied to the light emitting unit 22 by the power supply circuit 23. For example, the control unit 24 causes the power supply circuit 23 to supply power for abnormality detection, and performs abnormality detection processing of the light emitting unit 22 when power supply for abnormality detection is being performed. Further, the control unit 24 may perform an abnormality detection process of the light emitting unit 22 when power supply for causing the light emitting unit 22 to emit light (power supply based on a user lighting instruction) is performed by the power supply circuit 23. .

  Although the content of the abnormality detection process by the control part 24 is not specifically limited, In embodiment, the control part 24 measures the electric current which flows into one light emitting element group in a some light emitting element group in an abnormality detection process. Details of the abnormality detection process will be described later.

  The control unit 24 causes the wireless communication unit 25 to transmit abnormality information indicating an abnormality of the light emitting unit 22 when an abnormality of the light emitting unit 22 is detected by the abnormality detection process. In addition, the control unit 24 causes the wireless communication unit 25 to transmit normal information indicating normality of the light emitting unit 22 when no abnormality of the light emitting unit 22 is detected by the abnormality detection process.

  Further, when the wireless communication unit 25 fails in the wireless communication, the control unit 24 controls the power supply circuit 23 to cause the light emitting unit 22 to emit light in a predetermined manner. The failure in wireless communication includes both the case where reception of information via wireless communication fails and the case where transmission of information via wireless communication fails. Specifically, when the wireless communication unit 25 fails in the wireless communication in the normal information transmission of the lighting device 100 or the wireless communication unit 25 fails in the transmission of the abnormality information in the lighting device 100, the control unit 24 Next, the light emitting unit 22 emits light in a predetermined manner. In addition, when the wireless communication unit 25 fails in wireless communication in the relay of abnormality information of the lighting device 100a, or when the wireless communication unit 25 fails in wireless communication in the relay of normal information of the lighting device 100a, the control unit 24 emits light. Is made to emit light in a predetermined manner.

  Specifically, the control unit 24 is realized by a microcomputer, a processor, or a dedicated circuit. The control unit 24 may be realized by a combination of a microcomputer, a processor, or a dedicated circuit. When the power supply circuit 23 and the control unit 24 are compatible with the dimming function, the control unit 24 includes a chopper control circuit.

  The wireless communication unit 25 performs wireless communication with other lighting devices included in the lighting system 300. For example, when the abnormality of the light emitting unit 22 is detected by the abnormality detection process, the wireless communication unit 25 transmits abnormality information indicating the abnormality of the light emitting unit 22 to the lighting device 100b based on the control of the control unit 24. Further, when no abnormality of the light emitting unit 22 is detected by the abnormality detection process, the wireless communication unit 25 transmits normal information indicating the normality of the light emitting unit 22 to the lighting device 100b based on the control of the control unit 24. .

  When the lighting device 100 is installed in the vicinity of the lighting management device 150, the wireless communication unit 25 may directly transmit abnormality information or normal information to the lighting management device 150.

  Moreover, it is not essential that both abnormal information and normal information are transmitted. For example, when the wireless communication unit 25 transmits only abnormality information, the lighting management device 150 can determine that the lighting device 100 from which abnormality information has not been received is normal. Similarly, when the wireless communication unit 25 transmits only normal information, the lighting management device 150 can determine that the lighting device 100 for which normal information has not been received is abnormal. As described above, the wireless communication unit 25 may transmit at least one of abnormality information indicating abnormality of the light emitting unit 22 and normal information indicating normality of the light emitting unit 22 based on the result of the abnormality detection process.

  In addition, the wireless communication unit 25 relays normal information of the lighting device 100a from the lighting device 100a to the lighting device 100b. Similarly, the wireless communication unit 25 relays abnormality information of the lighting device 100a from the one lighting device 100a to the other lighting device 100b. When the lighting device 100 is installed in the vicinity of the lighting management device 150, the wireless communication unit 25 may relay abnormality information or normal information of the lighting device 100a to the lighting management device 150.

  The wireless communication unit 25 may perform wireless communication using a radio wave having a frequency lower than that of light, or may perform wireless communication using light such as infrared rays. The wireless communication unit 25 is, for example, a communication module (communication) corresponding to a communication standard such as specific low power wireless, Bluetooth (registered trademark), ZigBee (registered trademark), or wireless LAN (for example, Wi-Fi (registered trademark)). Circuit). It may be a communication module that performs communication using infrared rays, or a UART (Universal Asynchronous Receiver Transmitter) module that performs weak wireless communication.

  The time measuring unit 26 measures time and notifies the control unit 24 of the time. For each unit time, the timer unit 26 notifies the control unit 24 of a timer signal indicating that the unit time has elapsed. Thereby, the control part 24 can measure time. Specifically, the timer unit 26 is a general-purpose timer IC (timer circuit). Note that the timer unit 26 may be realized as a part of the control unit 24.

  The storage unit 27 is a storage device such as a semiconductor memory. The storage unit 27 stores an upper limit value and a lower limit value used for the abnormality detection process. Note that the storage unit 27 is supplied with the first upper limit value and the first lower limit value used in the abnormality detection process when the abnormality detection power supply is performed, and the power supply for causing the light emitting unit 22 to emit light. The two types of the second upper limit value and the second lower limit value used in the abnormality detection process in the case of failure are stored. In addition, the storage unit 27 stores a program executed by the processor when the control unit 24 is realized as a processor. Note that the storage unit 27 may be realized as a part of the control unit 24.

  The resistor 28 a is a circuit protection resistor attached to the output of the power supply circuit 23.

  The fuse 28b is a protection element that protects the circuit by opening the circuit when an overcurrent flows through the circuit.

  The diode bridge 28 c is a circuit that further rectifies the DC power output from the power supply circuit 23.

  Note that the circuit components such as the resistor 28a, the fuse 28b, and the diode bridge 28c described above are not essential.

[Light emitting unit abnormality detection processing]
Next, the abnormality detection process of the light emitting unit 22 performed by the control unit 24 will be described. As described above, the light emitting unit 22 includes six light emitting element groups in which a plurality of light emitting elements are connected in series, and the six light emitting element groups are connected in parallel. The controller 24 may measure current for all six light emitting element groups in the abnormality detection process. However, in the embodiment, in the abnormality detection process, the control unit 24 measures only one light emitting element group among the six light emitting element groups and measures the current flowing through the light emitting element group.

  When the light emitting element 22a included in the light emitting element group to be measured is in an open failure, that is, when the cathode and the anode are open in one or more light emitting elements 22a included in the light emitting element group to be measured, the light emitting element to be measured The current flowing through the group is almost zero. That is, the control unit 24 can determine that there is an abnormality in the light emitting unit 22 when the current value is approximately zero. Specifically, the control unit 24 refers to the lower limit value (first lower limit value or second lower limit value) stored in the storage unit 27, and emits light when the measured current value is higher than the referred upper limit value. It can be determined that the part 22 is abnormal.

  When the light emitting element 22a included in the light emitting element group to be measured has a short circuit failure, that is, when the cathode and the anode are short-circuited in one or more light emitting elements 22a included in the light emitting element group to be measured. The current flowing through the light emitting element group is larger than usual. That is, the control unit 24 can determine that there is an abnormality in the light emitting unit 22 when the current value is higher than normal. Specifically, the control unit 24 refers to the upper limit value (first upper limit value or second upper limit value) stored in the storage unit 27, and emits light when the measured current value is higher than the referred upper limit value. It can be determined that the part 22 is abnormal.

  When the light emitting element 22a included in the light emitting element group that is not the measurement target has an open failure, the current does not flow to the light emitting element group that includes the light emitting element 22a. Will also increase. Accordingly, in this case as well, the control unit 24 can detect an abnormality in the light emitting unit 22 based on whether or not the measured current value is higher than the referred upper limit value.

  When the light emitting element 22a included in the light emitting element group that is not the measurement target has a short circuit failure, the current flows through the light emitting element group including the light emitting element 22a. Less than usual. Therefore, also in this case, the control unit 24 can detect an abnormality in the light emitting unit 22 based on whether or not the measured current value is lower than the lower limit value referred to.

[Operation example 1 of lighting device]
Next, an operation example 1 of the illumination device 100 in the illumination system 300 will be described. FIG. 6 is a flowchart of the operation example 1 of the lighting apparatus 100.

  The control part 24 of the illuminating device 100 determines whether predetermined time passed by acquiring a timer signal from the time measuring part 26 (S11) (S12). The predetermined time is, for example, 24 hours. When it is determined that the predetermined time has not elapsed (No in S12), the control unit 24 continues to acquire the timer signal until the predetermined time has elapsed (S11).

  If it is determined that the predetermined time has elapsed (Yes in S12), it is determined whether or not the light emitting unit 22 is emitting light (S13). Whether or not the light emitting unit 22 is emitting light is determined based on, for example, whether or not current is flowing through the light emitting element group to be measured. The method may be used.

  When it is determined that the light emitting unit 22 is not emitting light (No in S13), the control unit 24 causes the power supply circuit 23 to supply power for abnormality detection (S14), and power supply for abnormality detection is performed. An abnormality detection process of the light emitting unit 22 is performed when the light is on (S15). Specifically, the control unit 24 measures the current value flowing through the light emitting element group to be measured, and reads the first upper limit value and the first lower limit value stored in the storage unit 27. When it is determined that the measured current value is greater than or equal to the first lower limit value and less than or equal to the first upper limit value, the control unit 24 detects (determines) that the light emitting unit 22 is normal (in S15). No abnormality). When it is determined that the measured current value is lower than the first lower limit value or higher than the first upper limit value, the control unit 24 detects (determines) that the light emitting unit 22 is abnormal (abnormal in S15). Yes).

  When it is determined that the light emitting unit 22 is emitting light (Yes in S13), the control unit 24 performs abnormality detection processing of the light emitting unit 22 without causing the power supply circuit 23 to supply power for abnormality detection ( S15). In other words, the control unit 24 performs an abnormality detection process for the light emitting unit 22 when the power supply circuit 23 supplies power for causing the light emitting unit 22 to emit light. Specifically, the control unit 24 measures the current value flowing through the light emitting element group to be measured, and reads the second upper limit value and the second lower limit value stored in the storage unit 27. When the measured current value is greater than or equal to the second lower limit value and less than or equal to the second upper limit value, the control unit 24 detects that the light emitting unit 22 is normal (no abnormality in S15). When the measured current value is lower than the second lower limit value or higher than the second upper limit value, the control unit 24 detects that the light emitting unit 22 is abnormal (abnormal in S15).

  When an abnormality of the light emitting unit 22 is detected in step S15 (abnormal in S15), the control unit 24 causes the wireless communication unit 25 to transmit abnormality information. In other words, when the abnormality of the light emitting unit 22 is detected, the wireless communication unit 25 transmits abnormality information indicating the abnormality of the light emitting unit 22 (S16). In this case, the operation ends.

  On the other hand, if no abnormality of the light emitting unit 22 is detected in step S15 (no abnormality in S15), the control unit 24 causes the wireless communication unit 25 to transmit normal information. In other words, when the abnormality of the light emitting unit 22 is not detected, the wireless communication unit 25 transmits normal information indicating the normality of the light emitting unit 22 (S17).

  Next, the control unit 24 determines whether or not wireless communication in transmitting normal information has failed (S18). For example, when the transmission of normal information itself fails or when a response to the transmission is not obtained from the transmission destination lighting device after transmission of normal information, the control unit 24 indicates that wireless communication has failed. It judges (Yes in S18) and makes the light emission part 22 light-emit in a predetermined | prescribed aspect (S19). That is, the control unit 24 causes the light emitting unit 22 to emit light in a predetermined manner by controlling the power supply circuit 23 when the wireless communication unit 25 fails in wireless communication during transmission of normal information. Specifically, the control unit 24 blinks the light emitting unit 22.

  For example, the control unit 24 determines that the wireless communication is successful when the transmission of normal information is successful and a response to the transmission is obtained from the transmission destination lighting device after transmission of the normal information (S18). No), the operation ends.

  The operation example 1 of the lighting device 100 has been described above. According to the operation example 1, the illuminating device 100 can perform the abnormality detection process of the light emission part 22 regularly, and can notify a user that abnormality had generate | occur | produced in the light emission part 22 by transmission of abnormality information. In addition, when the wireless communication unit 25 fails in wireless communication, the lighting device 100 may notify the user that an abnormality has occurred in wireless communication by causing the light emitting unit 22 to emit light in a predetermined light emission mode. it can.

  Note that the process of step S18 and the process of step S19 may also be performed when the wireless communication unit 25 transmits abnormality information. However, in the flowchart of FIG. 8, when the wireless communication unit 25 transmits abnormality information, the process of step S18 and the process of step S19 are not performed. That is, the control unit 24 does not cause the light emitting unit 22 to emit light in a predetermined manner by controlling the power supply circuit 23 when the wireless communication unit 25 fails in wireless communication during transmission of abnormality information.

  This is because it is considered that it is better not to use the light emitting unit 22 when transmitting abnormality information because it is considered that an abnormality has occurred in the light emitting unit 22. For the same reason, when it is detected in step S15 that the light emitting unit 22 is abnormal, the control unit 24 may turn off the light emitting unit 22 by controlling the power supply circuit 23.

[Operation example 2 of lighting device]
Next, an operation example 2 of the illumination device 100 in the illumination system 300 will be described. FIG. 7 is a flowchart of the operation example 2 of the lighting device 100.

  In the operation example 1, the control unit 24 performs the abnormality detection process of the light emitting unit 22 periodically (for example, every 24 hours), but such an operation is an example. For example, the control unit 24 may perform an abnormality detection process for the light emitting unit 22 every time the user gives a lighting instruction, as in Operation Example 2 below. In the following description of the operation example 2, the content already described in the operation example 1 is omitted as appropriate.

  When the user gives a lighting instruction, the light emitting unit 22 emits light. Therefore, the control unit 24 determines whether or not the light emitting unit 22 is emitting light (S13).

  When it is determined that the light emitting unit 22 is not emitting light (No in S13), the determination (detection) of whether or not the light emitting unit 22 is emitting light is continued (S13). When it is determined that the light emitting unit 22 is emitting light (Yes in S13), the control unit 24 performs an abnormality detection process for the light emitting unit 22 (S15). When the measured current value is not less than the second lower limit value and not more than the second upper limit value, the control unit 24 detects that the light emitting unit 22 is normal (no abnormality in S15). ). When the measured current value is lower than the second lower limit value or higher than the second upper limit value, the control unit 24 detects that the light emitting unit 22 is abnormal (abnormal in S15). Thereafter, the operation is the same as that of the operation example 1.

  Thus, the control unit 24 may perform an abnormality detection process for the light emitting unit 22 every time the user gives a lighting instruction. According to the operation example 2, the illuminating device 100 can detect the abnormality detection process of the light emitting unit 22 every time the illuminating device 100 is turned on, and notify the user that abnormality has occurred by transmitting abnormality information. .

[Example 3 of operation of lighting device]
Next, an operation example 3 of the illumination device 100 in the illumination system 300 will be described. FIG. 8 is a flowchart of the operation example 3 of the lighting apparatus 100.

  In the operation examples 1 and 2 described above, the control unit 24 causes the light emitting unit 22 to emit light in a predetermined manner when the wireless communication unit 25 fails in wireless communication in the transmission of abnormality information and normal information of the lighting device 100 itself. . On the other hand, in the operation example 3, an example in which the light emitting unit 22 emits light in a predetermined mode when the wireless communication unit 25 fails in the wireless communication in relaying abnormality information and normal information of the other lighting device 100a will be described. . In the following description of the operation example 3, the contents already described in the operation example 1 and the operation example 2 are omitted as appropriate.

  First, the wireless communication unit 25 receives abnormality information or normal information of another lighting device 100a (S21). Then, the wireless communication unit 25 transmits the received abnormality information or normal information to another illumination device 100b (S22). That is, the wireless communication unit 25 relays abnormality information or normal information of the other lighting device 100a.

  Next, the control unit 24 determines whether or not the wireless communication in the relay has failed (S18). The control unit 24, for example, when transmission of abnormal information or normal information itself fails, and when a response to transmission is not obtained from the destination lighting device 100b after transmission of abnormal information or normal information. It is determined that the wireless communication has failed (Yes in S18). Then, the control unit 24 causes the light emitting unit 22 to emit light in a predetermined manner (S19). That is, the control unit 24 causes the light emitting unit 22 to emit light in a predetermined manner by controlling the power supply circuit 23 when the wireless communication unit 25 fails in wireless communication in relaying abnormal information or normal information.

  When the relay of the abnormal information or the normal information is successful, the control unit 24 determines that the wireless communication is successful (No in S18), and the operation ends.

  The operation example 3 of the lighting device 100 has been described above. According to the operation example 3, the lighting device 100 performs wireless communication by causing the light emitting unit 22 to emit light in a predetermined light emission mode when the wireless communication unit 25 fails in wireless communication in relaying abnormal information or normal information. The user can be notified that an abnormality has occurred.

  In relaying abnormal information or normal information, more specifically, techniques such as multi-hop communication are used.

[Modification of lighting device]
The configuration of the illumination device 100 (illumination light source 10) described in the above embodiment is an example. For example, in the above embodiment, the illumination light source 10 is attached to the main body 110 by the first base 51 and the second base 52, but the illumination light source 10 may be attached to the main body 110 by a connector. . Hereinafter, an illumination device according to such a modification will be described. FIG. 9 is an external perspective view of a lighting device according to a modification.

  As illustrated in FIG. 9, the illumination device 200 includes an illumination light source 10 a and a main body 210.

  The main body 210 is attached to the ceiling with a fixture. The main body 210 has a recess 220 in which the illumination light source 10a is embedded. For example, the illumination light source 10a is detachably attached to the main body 210 by engaging a metal fitting (not shown) of the illumination light source 10a with a hole formed in the inner surface of the recess 220. A connector 240 is provided at the end of the electric wire extending from the main body 210.

  The illumination light source 10a includes a light emitting device 20 and a housing 30a. The housing 30 a is a kamaboko-shaped housing and houses the light emitting device 20. A portion (curved portion) that covers the light emission side of the light emitting device 20 in the housing 30a is an example of a cover, and this portion is formed of a resin such as polycarbonate or a light-transmitting material such as glass. The This portion may have light diffusibility by having the light diffusion structure as described in the above embodiment.

  A connector 40 is provided at the end of the electric wire extending from the housing 30a. By fitting the connector 40 with the connector 240, it is possible to supply AC power from the main body 210 to the light emitting device 20 (illumination light source 10a). Thus, the terminals in the connector 40 include the first power receiving terminal and the second power receiving terminal that receive AC power from the outside.

  The illumination device 200 and the illumination light source 10a according to the modification have been described above, and such illumination device 200 and illumination light source 10a are also included in the present invention.

[Effects]
As described above, the lighting device 100 includes the light emitting unit 22, the power supply circuit 23 that supplies power to the light emitting unit 22, and the power supply circuit 23 that supplies power to the light emitting unit 22. At least one of abnormality information indicating abnormality of the light emitting unit 22 and normal information indicating normality of the light emitting unit 22 is transmitted based on the result of the abnormality detection processing and the control unit 24 that performs abnormality detection processing for detecting abnormality. And a wireless communication unit 25. When the wireless communication unit 25 fails in wireless communication, the control unit 24 controls the power supply circuit 23 to cause the light emitting unit 22 to emit light in a predetermined manner.

  Thereby, the illuminating device 100 can notify a user that abnormality occurred in the light emission part 22 by transmission of at least one of abnormality information and normal information. In addition, when the wireless communication unit 25 fails in wireless communication, the lighting device 100 may notify the user that an abnormality has occurred in wireless communication by causing the light emitting unit 22 to emit light in a predetermined light emission mode. it can.

  Further, the control unit 24 causes the power supply circuit 23 to supply power for abnormality detection, performs abnormality detection processing when the power supply for abnormality detection is being performed, and the power supply for abnormality detection is the light emitting unit. 22 does not need to emit light.

  Thereby, the abnormality detection process of the light emitting unit 22 can be performed without causing the light emitting unit 22 to emit light.

  Moreover, the control part 24 may perform an abnormality detection process regularly.

  Thereby, the control part 24 can perform the abnormality detection process of the light emission part 22 regularly.

  Further, the control unit 24 may perform the abnormality detection process when the power supply circuit 23 is supplying power for causing the light emitting unit 22 to emit light.

  Thereby, the control part 24 can perform the abnormality detection process of the light emission part 22 using the period when the light emission part 22 is light-emitting.

  The light emitting unit 22 may include a plurality of light emitting element groups in which a plurality of light emitting elements 22a are connected in series, and the plurality of light emitting element groups may be connected in parallel. The control unit 24 may measure a current flowing through one light emitting element group among the plurality of light emitting element groups in the abnormality detection process.

  Thereby, the control part 24 can perform the abnormality detection process of the light emission part 22 by measuring the electric current which flows into one light emitting element group among several light emitting element groups.

  The wireless communication unit 25 transmits normal information when no abnormality of the light emitting unit 22 is detected by the abnormality detection process, and the control unit 24 causes the wireless communication unit 25 to fail in wireless communication in transmitting normal information. In this case, the light emitting unit 22 may emit light in a predetermined manner by controlling the power supply circuit 23.

  Thereby, the illuminating device 100 can notify a user that the wireless communication part 25 failed in wireless communication in transmission of the normal information of the illuminating device 100.

  Further, the wireless communication unit 25 relays normal information of the other lighting devices 100a, and the control unit 24 emits light by controlling the power supply circuit 23 when the wireless communication unit 25 fails in wireless communication in the relay. The unit 22 may emit light in a predetermined manner.

  Thereby, the illuminating device 100 can notify a user that the wireless communication part 25 failed in wireless communication in the relay of the normal information of the illuminating device 100a.

  In addition, the wireless communication unit 25 relays abnormality information of the other lighting devices 100a, and the control unit 24 emits light by controlling the power supply circuit 23 when the wireless communication unit 25 fails in wireless communication in the relay. The unit 22 may emit light in a predetermined manner.

  Thereby, the illuminating device 100 can notify a user that the wireless communication part 25 failed in wireless communication in the relay of the abnormality information of the illuminating device 100a.

(Other embodiments)
Although the lighting device according to the embodiment has been described above, the present invention is not limited to such an embodiment.

  For example, in the above embodiment, the light emitting device used for the straight tube LED lamp has been described. However, the present invention may be realized as a light-emitting device used for another illumination light source such as a light bulb shaped lamp, or another illumination device such as a downlight or a light source integrated illumination device in which the light source cannot be removed. You may implement | achieve as a light-emitting device used for. In addition, the shape of the substrate included in the light-emitting device used in another illumination light source and another illumination device may be determined as appropriate. That is, the shape of the substrate is not limited to a long shape.

  Moreover, in the said embodiment, the SMD type LED element was used as a light emitting element. However, a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element such as an organic EL (Electro Luminescence) or an inorganic EL may be used as the light emitting element.

  Moreover, in the said embodiment, although the light-emitting device was a SMD type, a light-emitting device may be a COB (Chip On Board) type.

  In the above embodiment, all of the light-emitting elements included in the lighting device are arranged on one substrate. However, the light-emitting elements included in the lighting device may be divided into a plurality of substrates. In addition, it is not essential that components such as the power supply circuit, the control unit, and the wireless communication unit are disposed on the same substrate as the light emitting element. For example, a part of the components may be provided in the main body, and each component may be arranged somewhere in the lighting device.

  In the above embodiment, the light emitting device emits white light using an LED that emits blue light and a phosphor-containing resin containing yellow phosphor particles, but the light emitting device is limited to such a configuration. Is not to be done. The light emitting device may emit white light using, for example, an LED that emits blue light and a phosphor-containing resin that contains red phosphor particles and green phosphor particles.

  Further, instead of an LED that emits blue light, an LED that emits light other than blue light may be used. The light emitting device emits white light using, for example, an LED chip that emits ultraviolet light and a phosphor-containing resin containing phosphor particles that are excited by ultraviolet light and emit light in three primary colors (red, green, and blue). May be. For the light emitting device, a wavelength conversion material other than the phosphor particles may be used. For example, as the wavelength conversion material, a semiconductor, a metal complex, an organic dye, a pigment, and the like absorb light of a certain wavelength, A material containing substances that emit light of different wavelengths may be used.

  As mentioned above, although the illuminating device which concerns on the one or several aspect was demonstrated based on embodiment and a modification, this invention is not limited to the said embodiment and modification. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art have been made in this embodiment, and forms constructed by combining components in different embodiments are also within the scope of one or more aspects. May be included.

  For example, the present invention may be realized as the illumination system, the illumination light source, or the light emitting device according to the above-described embodiment.

22 Light Emitting Unit 22a Light Emitting Element 23 Power Supply Circuit 24 Control Unit 25 Wireless Communication Unit 100, 100a, 100b, 200 Illumination Device

Claims (8)

A light emitting unit;
A power supply circuit for supplying power to the light emitting unit;
A control unit for performing an abnormality detection process for detecting an abnormality of the light emitting unit when power is supplied to the light emitting unit by the power supply circuit;
A wireless communication unit that transmits at least one of abnormality information indicating abnormality of the light emitting unit and normal information indicating normality of the light emitting unit based on a result of the abnormality detection process;
The said control part is an illuminating device which makes the said light emission part light-emit in a predetermined | prescribed aspect by controlling the said power supply circuit, when the said wireless communication part fails in wireless communication. The control unit causes the power supply circuit to perform power supply for abnormality detection, performs the abnormality detection processing when the power supply for abnormality detection is performed,
The lighting device according to claim 1, wherein the power supply for detecting the abnormality does not cause the light emitting unit to emit light. The lighting device according to claim 2, wherein the control unit periodically performs the abnormality detection process. The lighting device according to claim 1, wherein the control unit performs the abnormality detection process when power is supplied to cause the light emitting unit to emit light by the power supply circuit. The light emitting unit has a plurality of light emitting element groups in which a plurality of light emitting elements are connected in series,
The plurality of light emitting element groups are connected in parallel,
The lighting device according to any one of claims 1 to 4, wherein the control unit measures a current flowing through one light emitting element group among the plurality of light emitting element groups in the abnormality detection process. When the abnormality of the light emitting unit is not detected by the abnormality detection process, the wireless communication unit transmits the normal information,
The said control part makes the said light emission part light-emit in a predetermined aspect by controlling the said power supply circuit, when the said wireless communication part fails in the said wireless communication in transmission of the said normal information. The lighting device according to claim 1. The wireless communication unit relays normal information of other lighting devices,
The lighting device according to claim 6, wherein the control unit causes the light emitting unit to emit light in the predetermined mode by controlling the power supply circuit when the wireless communication unit fails in the wireless communication in the relay. The wireless communication unit relays abnormality information of other lighting devices,
The said control part makes the said light emission part light-emit in the said predetermined | prescribed aspect by controlling the said power supply circuit, when the said wireless communication part fails in the said wireless communication in the said relay. The lighting device according to item.

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