JP6486405B2 - LED demonstration machine for elevator car, LED demonstration system and lighting comparison method - Google Patents

Description

  The present invention relates to an LED demonstration machine for an elevator car, an LED demonstration system, and an illumination comparison method.

  Conventionally, an annular or straight tube type fluorescent lamp for illuminating the inside of the car is disposed on the ceiling of the elevator car. In recent years, it has been considered to arrange LEDs (light emitting diodes) on the ceiling of the car in order to increase the brightness in the car, extend the life, save power, and so on.

  Patent Document 1 describes a configuration in which a white LED is disposed below a car top plate of a car and the light of the white LED is irradiated into the car room through a slit formed in the shielding plate.

  Patent Document 2 describes a configuration in which a plurality of LEDs are mounted on a plurality of linear socket bases attached to the lower surface of a ceiling portion of a car, and the LEDs have different emission colors in adjacent socket bases. . Patent Document 2 also describes that LEDs of different emission colors may be arranged on the same socket base.

  Patent Document 3 describes a configuration in which a printed board is attached to the lower side of a reinforcing plate attached to a ceiling portion of a car, and a plurality of white LEDs are arranged side by side in the vertical and horizontal directions of the board. The light of the white LED is diffused by a transparent or translucent protective plate. A commercial power supply is connected to the plurality of white LEDs via a rectifier circuit.

Japanese Patent Application Laid-Open No. 2014-221968 JP 2007-505021 A JP 2004-338825 A

  When an annular fluorescent lamp is arranged in the car, the elevator owner may consider introducing the LED by replacing the fluorescent lamp with the LED. However, it is difficult to confirm the change in the impression in the car room when the LED is introduced without purchasing the LED and actually introducing the LED instead of the fluorescent lamp.

  The purpose of the elevator car LED demonstration machine, the LED demonstration system, and the illumination comparison method according to the present invention is to change the impression of the interior of the car by the LED before introduction by the examiner considering introduction of the LED into the car illumination. Can be easily confirmed.

An LED demonstration machine for an elevator car according to the present invention is an LED demonstration machine for an elevator car that is disposed on a ceiling portion of a car and for checking the lighting state in the car, and is an annular light emitting support part And a light emitting device including light emitting units arranged at a plurality of positions in a circumferential direction with respect to the light emitting support unit, and connected to supply power to the light emitting unit to the light emitting device, opposite to the light emitting device A cable having a power plug connected to an end thereof, and a power switch connected to an intermediate portion of the cable or an end portion of the cable, and the light emitting support portions are formed at a plurality of positions in the circumferential direction of the inner peripheral surface. It is an LED demonstration machine for elevator cars which has a plurality of notches, and has a plurality of notches for engaging with the illumination support part fixed to the ceiling part .

LED demonstration system for elevator cab according to the present invention includes a remote control unit, an LED demonstration system for elevator cab and a elevator cab for LED demonstration machine, the elevator cab for LED demonstration machine rides An elevator car LED demonstration machine that is arranged on a ceiling of a car to check the lighting state in the car, and has an annular light emitting support part and a plurality of positions in the circumferential direction with respect to the light emitting support part A light-emitting device including a light-emitting unit disposed; a cable connected to the light-emitting device for supplying power to the light-emitting unit; and a power plug connected to an end opposite to the light-emitting device; and an intermediate portion or the power switch connected to an end portion of said cable, said remote control unit includes an operation unit to be operated by an operator, the operation portion A transmitting unit that transmits a wireless signal that indicates an on / off instruction of a power supply according to an operation, and the LED demonstration device receives a wireless signal that indicates the on / off instruction, and the on / off received by the receiving unit. An elevator car LED demonstration system including a switch control unit that controls the power switch in response to an instruction.

Elevator cab lighting comparison method according to the present invention, there is provided a lift cab lighting comparison method using the elevators cab for LED demonstration machine, the elevator cab for LED demonstration machine, car ceiling An elevator car LED demonstration machine for confirming the lighting state in the car that is arranged in a portion, and is arranged at a plurality of positions in the circumferential direction with respect to the annular light emitting support part and the light emitting support part A light-emitting device including a light-emitting unit, a cable connected to the light-emitting device to supply power to the light-emitting unit, and a power plug connected to an end opposite to the light-emitting device, and an intermediate portion of the cable or and a power switch connected to an end portion of said cable, one of the two annular fluorescent lamp attached to the ceiling, one of the annular fluorescent lamp, the The step of removing from the lighting support attached to the well, the step of attaching the LED demonstration machine to the lighting support, and switching on and off the power switch by an operator riding in the car cab, Of the two annular fluorescent lamps, the annular fluorescent lamp and the LED demonstration machine are alternately switched by turning on / off the power of the remaining annular fluorescent lamp by a fluorescent lamp switch arranged on the car control panel. A lighting comparison method for an elevator car, including a step of performing lighting comparison by turning it on.

  According to the elevator car LED demonstration machine, the LED demonstration system, and the lighting comparison method according to the present invention, a reviewer who considers introducing LED into the car lighting changes the impression of the car interior by the LED before the introduction. Can be easily confirmed.

The perspective perspective view (a) of the car before the installation of the LED demonstration machine for elevator cars according to the embodiment of the present invention, and the perspective perspective view (b) of the car after the installation of the LED demonstration machine for elevator cars. is there. It is the figure which took out the LED demonstration machine for elevator cars from FIG.1 (b), and looked at the light-emitting device from the bottom. It is a flowchart which shows the illumination comparison method for elevator cars of embodiment which concerns on this invention. It is a see-through | perspective perspective view of the car containing the LED demonstration system for elevator cars containing the LED demonstration machine for elevator cars of another example of embodiment. It is a block diagram of the LED demonstration system for elevator cars shown to FIG. 4A. It is a see-through | perspective perspective view which shows the ceiling part which has arrange | positioned the LED demonstration machine for elevator cars of another example of embodiment. It is a block diagram of the LED demonstration machine for elevator cars shown in FIG. It is a perspective view which shows the LED demonstration machine for elevator cars of another example of embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, identical elements are denoted by the same reference symbols in all drawings.

  FIG. 1 is a perspective view (a) of a car 50 before the installation of the LED demonstration machine 10 for an elevator car according to the embodiment, and a perspective view of the car 50 after the installation of the LED demonstration machine 10 for an elevator car. (B). FIG. 2 is a view of the elevator car LED demonstration machine 10 taken out from FIG. First, an elevator including the car 50 to which the elevator car LED demonstration machine 10 is attached will be described. Below, the LED demonstration machine for elevator cars is described as LED demonstration machine.

  The elevator includes a passenger car 50 disposed in a hoistway (not shown) of a building so as to be able to be raised and lowered, and an elevator driving device (not shown). The car 50 is connected to a counterweight (not shown) via a rope (not shown). The elevator driving device is arranged in a machine room of a building and has a hoisting machine. The rope is wound around a hoist. The drive of the hoisting machine is controlled by an elevator control panel. The car 50 moves up and down in the hoistway by driving the hoisting machine. A car control panel (not shown) is arranged in the car 50, and the car control panel can send and receive signals to and from the elevator control board via a signal line included in a tail cord (not shown). Connected to. A commercial power connector 52 is attached to the upper side of the ceiling portion 51 of the car 50. Electric power is supplied to the connector 52 from the elevator control panel via a car control panel and a power line included in the tail cord.

  In the existing elevator, as shown in FIG. 1A, in the ceiling portion 51 of the car 50, two annular fluorescent lamps 53 are attached to and detached from an illumination support portion (not shown) attached to the ceiling portion 51. Supported as possible.

  The LED demonstration machine 10 according to the embodiment is arranged on the ceiling 51 as a trial instead of the single annular fluorescent lamp 53, and a reviewer who considers the introduction of the LED into the car lighting has introduced it. Before, it is used for confirming the lighting state in the car room 54 of the car 50. By confirming the lighting state, the examiner can confirm the change in the impression in the car room 54.

  As shown in FIG. 2, the LED demonstration machine 10 includes a light emitting device 11, a cable 20, and a power switch 30. The light emitting device 11 includes an annular light emitting support 12 and a light emitting module 13 as a light emitting unit disposed at a plurality of positions in the circumferential direction with respect to the light emitting support 12. The light emitting module 13 is attached to the ceiling portion of the LED board 14 so as to cover the LED board 14, the LED elements 15 arranged in a linear or arcuate direction on the LED board 14, and the plurality of LED elements 15. And a cover 16 attached to one side as a lower side. The cover 16 is made of resin or glass to be transparent or translucent. In FIG. 2, the cover 16 is shown by sand. The LED substrate 14 has the same shape as the cover 16 as viewed from below (the front side of the paper surface of FIG. 2). The plurality of light emitting modules 13 are fixed side by side in the circumferential direction of the light emitting support portion 12, and the plurality of LED elements 15 are electrically connected in series. Note that the plurality of LED elements 15 of each light emitting module 13 may be electrically connected in series, and the plurality of light emitting modules 13 may be electrically connected in parallel.

  Such a light-emitting device 11 is attached to the illumination support part fixed to the ceiling part 51. For example, the illumination support portion has a claw portion (not shown) as a holding portion for holding the annular fluorescent lamp 53, and the claw portions are formed at a plurality of positions in the circumferential direction on the inner peripheral surface of the light emission support portion 12. The light emitting device 11 may be attached to the illumination support portion by being locked in the cutout 12a.

  One end of the cable 20 is connected to the light emitting device 11 to supply power to each LED element 15 of the light emitting module 13, and a power plug 21 is connected to the other end opposite to the light emitting device 11. The power switch 30 is, for example, a breaker or an on / off switch for switching on / off, and is connected between the light emitting device 11 and the power plug 21 at an intermediate portion of the cable 20. In FIG. 2, the power switch 30 has a power circuit (not shown), and the power circuit converts the AC voltage supplied from the power plug 21 into a DC voltage, and the DC voltage is transmitted through the cable 20 to the light emitting device. 11 is shown. When the power switch 30 is turned on, a direct current voltage is supplied to the light emitting device 11, each light emitting module 13 of the light emitting device 11 emits light, and the light is arranged below the ceiling portion and has a light transmitting property. And irradiating the car room 54 under the car. The illumination plate 55 is made of resin such as acrylic resin or glass. When the power switch 30 is turned off, the power supply to the light emitting device 11 is stopped, and each light emitting module 13 is turned off.

  The LED demonstration machine 10 is attached to the ceiling portion 51 of the car 50 by the following car lighting comparison method, and the lighting comparison in the car room 54 is performed with the annular fluorescent lamp 53. Is called. FIG. 3 is a flowchart illustrating the elevator car illumination comparison method of the embodiment. Specifically, the lighting comparison method for a car includes a fluorescent light removing step, an LED demonstration machine mounting step, and a lighting comparison step.

  The fluorescent lamp removing step shown in S10 of FIG. 3 is performed by an operator such as an operator of the power switch 30 when there are two annular fluorescent lamps 53 attached to the ceiling 51 as shown in FIG. However, one annular fluorescent lamp 53 is removed from the illumination support part attached to the ceiling part.

In the LED demonstration machine attaching step shown in S12 of FIG. 3, the operator attaches the LED demonstration machine 10 to the illumination support part from which the annular fluorescent lamp is removed, as shown in FIG. 1 (b). At this time, the power plug 21 is connected to the connector 52 on the ceiling 51 of the car 50. Then, the portion including the intermediate portion of the cable 20 connected to the light emitting device 11 and the power switch 30 is arranged with the illumination plate 55 arranged below the ceiling portion 51 or the plate portion arranged near the illumination plate and the portion thereof. It hangs down to the car room 54 side through a gap with the mounting portion.

  The lighting comparison step shown in S14 of FIG. 3 is performed by the operator after the LED demonstration device mounting step in a state where the examiner who considers the introduction of the LED together with the operator of the power switch 30 gets on the car cab 54. The switch 30 is turned on and off. At the same time, the operator switches on / off the power of the remaining annular fluorescent lamp 53 of the two annular fluorescent lamps using a power switch (not shown) arranged on the car control panel. Accordingly, the annular fluorescent lamp 53 and the LED demonstration machine 10 are alternately turned on, and the examiner performs the illumination comparison in the illumination state. At this time, the state where only the annular fluorescent lamp 53 is lit and the state where only the LED demonstration machine 10 is lit are realized alternately.

  According to the LED demonstration machine 10 and the illumination comparison method described above, a reviewer who examines and introduces an LED in the car illumination can easily check the change in the impression in the car room 54 due to the LED before the introduction. . As a result, when the structure having the light emitting device 11 similar to the LED demonstration machine 10 is attached to the ceiling 51, the impression does not change greatly from the impression confirmed using the LED demonstration machine 10, so that the reviewer's LED Anxiety about introduction can be suppressed. For example, even in the same LED demonstration machine 10, there is a possibility that the impression of lighting in the car room 54 may change greatly depending on the difference in the distance between the LED demonstration machine 10 and the lighting plate 55 in the car to which the LED demonstration machine 10 is attached. . According to this embodiment, it is possible to easily confirm the impression when the LED is attached to the car before introducing the LED. The operator of the power switch 30 may be a reviewer who considers LED introduction. Moreover, according to said LED demonstration machine 10, since a structure is comparatively simple, it can implement | achieve cheaply.

  In the light emitting device 11 illustrated in FIG. 2, the case where the plurality of light emitting modules 13 are arranged has been described, but the shape of the light emitting device 11 is not limited to the shape of FIG. 2. For example, even if LED elements as a plurality of light emitting portions are arranged on one side of an annular light emitting support portion, and a circular transparent or translucent cover is attached to the light emission support portion so as to cover the whole of the plurality of LED elements. Good.

  FIG. 4A is a perspective view of a car 50 including an LED demonstration system 40 including an LED demonstration machine 10a according to another example of the embodiment. FIG. 4B is a configuration diagram of the LED demonstration system 40.

  The LED demonstration system 40 includes a remote control unit 41 and an LED demonstration machine 10a. As shown in FIG. 4A, the remote operation unit 41 is operated by an operator 60 who is in a car cab 54. The remote operation unit 41 includes an operation unit 42 operated by an operator 60 and a wireless transmission unit 43. The operation unit 42 is, for example, an on / off switch. The wireless transmission unit 43 includes a transmission antenna 44, and directs a wireless signal indicating a power on / off instruction according to the operation of the operation unit 42 to the wireless reception unit 31 of the LED demonstration machine 10a described later via the transmission antenna 44. To transmit as a radio signal. The radio signal may be an infrared signal or a visible light signal in addition to the radio signal.

  The LED demonstration machine 10 a includes a light emitting device 11, a wireless reception unit 31, a power switch 32, and a switch control unit 33. The wireless reception unit 31 includes a reception antenna 34 and receives a wireless signal representing a power on / off instruction from the remote control unit 41 via the reception antenna 34. The power switch 32 is an electrical switch such as a relay switch and is controlled to be turned on / off. When the power switch 32 is turned on, the power plug 21 (see FIG. 2) and the light emitting device 11 are electrically connected. In the configuration shown in FIG. 4A, the power switch 32 is connected to the end of the cable 20a on the light emitting device 11 side. The power switch 32 may be connected to an intermediate portion of the cable. When the power switch 32 is turned off, the electrical connection between the power plug 21 and the light emitting device 11 is interrupted. The switch control unit 33 controls the power switch 32 according to the on / off instruction received by the wireless reception unit 31. For example, when the power switch 32 is a relay switch, the switch control unit 33 includes a circuit that switches between energization and deenergization of the coil.

  According to the LED demonstration system 40 described above, unlike the configuration shown in FIG. 1B, it is not necessary to hang the middle portion of the cable connected to the light emitting device 11 toward the cab 54. The operator 60 can switch the power switch 32 of the LED demonstration machine 10 on and off by operating the operation unit 42 with the remote operation unit 41. Other configurations and operations are the same as those shown in FIGS. 1 to 3.

  FIG. 5 is a perspective view showing a ceiling portion 51 in which an LED demonstration machine 10b according to another example of the embodiment is arranged. FIG. 6 is a configuration diagram of the LED demonstration machine 10b.

  5 and 6 includes an illuminance meter 35, a power plug 21, a power switch 30, a determination changeover switch 36, a lighting control unit 37, and the light emitting device 11 attached to the light emitting support unit. Is done. With the LED demonstration machine 10b attached to the ceiling 51, the illuminance meter 35 is directed to the lower side of the passenger car cab. Thereby, the illumination meter 35 measures the illumination intensity by reflection of the light irradiated from the ceiling part 51 and reflected on the floor surface of the cab. The illuminance meter 35 is configured to be supplied with power from the power plug 21 side even when the power switch of the LED demonstration machine 10b is turned off. The illuminance meter 35 may be supplied with power from another power source such as a dry battery without supplying power from the power plug 21 side. In FIG. 5, only the LED demonstration machine 10 b is arranged on the ceiling 51, but actually, an annular fluorescent lamp 53 (see FIG. 1) is arranged adjacent to the LED demonstration machine 10 b on the ceiling 51. Is done.

  The determination changeover switch 36 is connected between the power switch 30 and the lighting control unit 37. The determination switch 36 is an operation unit (not shown) that can be switched to an illuminance comparison off mode, an LED illuminance determination mode, a fluorescent lamp illuminance determination mode, and an illuminance comparison mode in a state where power is supplied from the power switch 30 side. Have In the “illuminance comparison off mode”, the illuminance comparison determination is not performed, and the light emitting module 13 that is the light emitting unit of the light emitting device 11 is turned on in a normal state when the power switch 30 is turned on. In the “LED illuminance determination mode”, power is supplied to the light emitting module 13 and the light emitting module 13 is turned on. In this state, measurement by the illuminance meter 35 is performed, and the measurement result is stored in the lighting control unit 37 described later. . In the “fluorescent lamp illuminance determination mode”, power is not supplied to the light emitting module 13 and the light emitting module 13 is turned off. At this time, when the operator turns on the power switch of the annular fluorescent lamp 53, a state where only the annular fluorescent lamp 53 is lit is realized. In this state, measurement by the illuminometer 35 is performed, and the measurement result is stored in the lighting control unit 37. In the “illuminance comparison mode”, the lighting control unit 37 compares the illuminance measurement results in the LED illuminance determination mode and the fluorescent lamp illuminance determination mode. In the “illuminance comparison mode”, the lighting state of the light emitting module 13 changes according to the comparison result.

  The lighting control unit 37 changes the lighting state of the light emitting module 13 according to the measurement result of the illuminance meter 35. Specifically, when the determination changeover switch 36 is in the illuminance comparison mode, the lighting control unit 37 compares the illuminance measurement results in the LED illuminance determination mode and the fluorescent lamp illuminance determination mode. For example, when the illuminance measurement result of the LED is higher than the illuminance measurement result of the fluorescent lamp, the lighting control unit 37 blinks, for example, the light emitting module 13 and the illuminance measurement result of the LED is equal to or less than the illuminance measurement result of the fluorescent lamp. In this case, for example, the light emitting module 13 is turned off. At this time, blinking and extinguishing may be reversed. The light emitting module 13 may be switched between blinking and lighting depending on whether the illuminance measurement result of the LED is higher than the illuminance measurement result of the fluorescent lamp or the illuminance measurement result of the LED is less than the illuminance measurement result of the fluorescent lamp. Good.

  According to the configuration of FIGS. 5 and 6, the examiner can easily recognize the comparison result of the illuminance between the LED demonstration machine 10b and the fluorescent lamp, based on the lighting state of the LED demonstration machine 10b. Other configurations and operations are the same as those shown in FIGS. 1 to 3. The configurations shown in FIGS. 5 and 6 can be combined with the configurations shown in FIGS. 4A and 4B.

  FIG. 7 is a perspective view showing an LED demonstration machine 10c according to another example of the embodiment. In the case of the configuration of FIG. 7, the LED demonstration machine 10 c includes a power meter (not shown) that measures the power consumed by the light emitting device 11 and a display unit 38 that displays the measurement result of the power meter. The display unit 38 is, for example, a display formed integrally with a case 39 in which the power switch 30 is disposed. The display unit 38 can display the measurement result as a numerical value or a bar graph display. For example, the wattmeter can be disposed integrally with the case 39 or can be disposed on the light emission support portion of the light emitting device 11. When the wattmeter is disposed on the light emission support section, a signal representing the measurement result of the wattmeter is input to a display control section that controls the display section 38 with a cable or the like.

  According to the above configuration, for example, the examiner visually observes the display unit 38 in a state where the intermediate portion of the cable 20 including the power switch 30 is hung on the car cab side, whereby the LED demonstration device 10c emits light. The power consumption in the apparatus 11 can be confirmed.

  In the configuration of each example described above, a case has been described in which two annular fluorescent lamps 53 are arranged in advance on the ceiling and one of them is replaced with the LED demonstration machine 10. On the other hand, when three or more or only one annular fluorescent lamp is arranged on the ceiling, an LED demonstration device may be attached instead of one annular fluorescent lamp. In the LED demonstration machine, a dimming switch may be provided near the power switch or the like, and the color of light from the light emitting unit of the LED demonstration machine may be changed by operating the dimming switch. For example, a plurality of types of LEDs may be arranged on the light emission support portion so that the light emission color of the LEDs to be turned on is changed by the operation of the dimming switch.

  10, 10a, 10b, 10c Elevator car LED demonstration machine (LED demonstration machine), 11 light emitting device, 12 light emitting support, 12a notch, 13 light emitting module, 14 LED substrate, 15 LED element, 16 cover, 20, 20a Cable, 21 Power plug, 30 Power switch, 31 Wireless receiver, 32 Power switch, 33 Switch controller, 34 Receiving antenna, 35 Illuminance meter, 36 Judgment switch, 37 Lighting controller, 38 Display unit, 39 Case, 40 LED demonstration system, 41 Remote operation unit, 42 operation unit, 43 Wireless transmission unit, 44 Transmitting antenna, 50 Car, 51 Ceiling, 52 Connector, 53 Circular fluorescent lamp, 54 Car room, 55 Lighting plate, 60 Operator .

Claims (6)

An elevator car LED demonstration machine arranged on the ceiling of the car for checking the lighting state in the car,
A light-emitting device including an annular light-emitting support portion and light-emitting portions disposed at a plurality of positions in a circumferential direction with respect to the light-emitting support portion, and connected to supply power to the light-emitting portion with respect to the light-emitting device, A cable having a power plug connected to an end opposite to the light emitting device, and a power switch connected to an intermediate portion of the cable or an end of the cable ;
The elevator car having a plurality of notches formed at a plurality of circumferential positions on an inner peripheral surface and having a plurality of notches for engaging with an illumination support part fixed to the ceiling part. LED demonstration machine. In the LED demonstration machine for elevator cars according to claim 1,
The illumination support part is configured to be able to support an annular fluorescent lamp instead of the light emission support part,
The power switch is connected to an intermediate portion of the cable, and a portion including the intermediate portion of the cable and the power switch is suspended in the car through a gap in the ceiling portion. An LED demonstration machine for elevator cars, which is arranged so that it can be operated. An elevator car LED demonstration machine arranged on the ceiling of the car for checking the lighting state in the car,
A light-emitting device including an annular light-emitting support portion and light-emitting portions disposed at a plurality of positions in a circumferential direction with respect to the light-emitting support portion, and connected to supply power to the light-emitting portion with respect to the light-emitting device, A cable having a power plug connected to an end opposite to the light emitting device, a power switch connected to an intermediate portion of the cable or an end of the cable, and
An illuminometer attached to the light emitting support;
An elevator car LED demonstration device comprising: a lighting control unit that changes a lighting state of the light emitting unit according to a measurement result of the illuminance meter. An elevator car LED demonstration machine arranged on the ceiling of the car for checking the lighting state in the car,
A light-emitting device including an annular light-emitting support portion and light-emitting portions disposed at a plurality of positions in a circumferential direction with respect to the light-emitting support portion, and connected to supply power to the light-emitting portion with respect to the light-emitting device, A cable having a power plug connected to an end opposite to the light emitting device, a power switch connected to an intermediate portion of the cable or an end of the cable, and
A wattmeter for measuring the power consumed by the light emitting device;
An LED demonstration machine for an elevator car, comprising a display unit for displaying a measurement result of the power meter. A remote control unit, an LED demonstration system for elevator cab and a elevators cab for LED demonstration machine,
The LED demonstration machine for elevator cars is
An elevator car LED demonstration machine arranged on the ceiling of the car for checking the lighting state in the car,
A light-emitting device including an annular light-emitting support portion and light-emitting portions disposed at a plurality of positions in a circumferential direction with respect to the light-emitting support portion, and connected to supply power to the light-emitting portion with respect to the light-emitting device, A cable having a power plug connected to an end opposite to the light emitting device, and a power switch connected to an intermediate portion of the cable or an end of the cable;
The remote operation unit includes an operation unit operated by an operator, and a transmission unit that transmits a radio signal indicating a power on / off instruction according to the operation of the operation unit,
The LED demonstration machine includes a receiving unit that receives a radio signal representing the on / off instruction, and a switch control unit that controls the power switch in response to the on / off instruction received by the receiving unit. LED demonstration system. A elevator cab lighting comparison method using the elevators cab for LED demonstration machine,
The LED demonstration machine for elevator cars is
An elevator car LED demonstration machine arranged on the ceiling of the car for checking the lighting state in the car,
A light-emitting device including an annular light-emitting support portion and light-emitting portions disposed at a plurality of positions in a circumferential direction with respect to the light-emitting support portion, and connected to supply power to the light-emitting portion with respect to the light-emitting device, A cable having a power plug connected to an end opposite to the light emitting device, and a power switch connected to an intermediate portion of the cable or an end of the cable;
Of the two annular fluorescent lamps attached to the ceiling part, removing the one annular fluorescent lamp from the illumination support part attached to the ceiling part;
Attaching the LED demonstration machine to the illumination support;
The operator switches on and off the power switch by an operator in the car room of the car, and on the car control panel, the power of the remaining annular fluorescent lamps is turned on and off. A lighting comparison method for an elevator car, including a step of performing lighting comparison by alternately turning on the annular fluorescent lamp and the LED demonstration device by switching with a fluorescent lamp switch.

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