JP2002145538A - Method for modulating illuminance of light in elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the energy saving effect of the traditional technology for modulating the illuminance of the light in an elevator car which requires a longer period of time for lightening the illuminance to modulate the illuminance according to the position of the moving elevator. SOLUTION: The illuminance 5 inside the elevator car is changed by controlling a light modulator 2 consisting of an inverter circuit 4 by opening/closing of the door of the elevator. As the illuminance of the light inside the car is changed in response to the opening/closing of the door, the energy saving effect is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminance dimming method for lighting in an elevator car.

[0002]

2. Description of the Related Art As a technique for dimming the brightness in an elevator car, Japanese Unexamined Patent Publication No. Hei 7 (1995) discloses a technique for automatically dimming the illuminance in the car according to the position of the elevator and the presence or absence of a passenger.
No. 315699.

[0003]

In the above prior art, the illuminance is adjusted according to the position of the elevator during traveling.
The energy saving effect was small because the time for brightening the illuminance was long.

An object of the present invention is to provide an illuminance dimming method for lighting in an elevator car, which can enhance the energy saving effect.

[0005]

In order to achieve the above object, the present invention comprises a lighting device capable of dimming the brightness of a car, a control device for controlling an elevator, and a door opening / closing device. In the elevator, the brightness in the car is adjusted by opening and closing the door.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an elevator according to an embodiment of the present invention. In FIG. 1, 1 is an elevator control device, 2 is a dimming device including a microcomputer 3 for controlling an inverter circuit 4, 5 is lighting equipment in an elevator car, 6 is a door opening / closing device for opening and closing a door of the car,
Reference numeral 7 denotes a door motor that drives the door.

FIG. 2 is an explanatory diagram showing the relationship between the state of the elevator and the illuminance of the illumination, wherein 10 is a traveling waveform of the elevator, 11 is an illuminance curve of the conventional illuminance control method of the illumination, and 12 is an illuminance curve.
Is an illuminance curve of the illumination illuminance control method of the present invention, 13 is an elevator door closing time, and 14 is a door opening time.

When the microcomputer 3 of the light control device 2 detects that the door is closed by a signal from the door opening / closing device 6 or the elevator control device 1 during the door closing period 13, the light control device 2 turns on the inverter circuit 4. Is controlled so as to gradually lower the output voltage of the vehicle and to gradually lower the illuminance of the illumination in the car as shown by the illuminance curve 12 in FIG. The elevator moves to an arbitrary floor while maintaining its illuminance during traveling. When the elevator stops and the microcomputer 3 of the light control device 2 detects that the door is opened by a signal from the door opening / closing device 6 or the elevator control device 1, the light control device 2 gradually reduces the output voltage of the inverter circuit 4. When the door is opened, control is performed such that 100% illuminance is obtained when the door is opened as shown in the illuminance curve 12 of FIG. As a result, the illuminance curve 1 is compared with the illuminance control method of the related art.
2 and S1 and S2 shown in FIG.
An energy saving effect of the power value of 2 is obtained.

[0010]

According to the control method of the lighting device in the elevator car, the illuminance of the light in the car is changed by controlling the dimmer of the inverter by opening and closing the door, thereby increasing the energy saving effect.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram illustrating an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the relationship between the state of the elevator and the illuminance regarding the control method of the lighting device of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 elevator control device 2 dimmer 3 microcomputer 4 inverter circuit 5 lighting 6 door opening and closing device 7 door motor 10 elevator running waveform 11 illuminance curve of conventional illuminance control method 12 illuminance curve of illuminance control method of the present invention 13 door closing time 14 Time to open the door

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiaki Kurosawa 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside the Hitachi Building System Co., Ltd. (72) Inventor Sansoji Hayasaka 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo F term in Hitachi Building Systems, Ltd. (reference) 3F002 GA01 GA07 GB03

Claims (1)

[Claims] 1. An elevator equipped with a lighting device capable of dimming the brightness of a car, a control device for controlling an elevator, and a door opening / closing device, wherein the door is opened and closed to allow the interior of the car to be opened and closed. A method for dimming the illuminance of a car in an elevator car, comprising dimming the brightness of a car.