ELEVATOR SYSTEM

• US 20090095575A1
• Filed: 03/14/2007
• Published: 04/16/2009
• Est. Priority Date: 03/20/2006
• Status: Active Grant

• Current Assignee: Toshiba Elevator Kabushiki Kaisha
• Original Assignee: Toshiba Elevator Kabushiki Kaisha
• Inventors: Nakamura, Kuniko
• Granted Patent: US 8,096,388 B2
• Time in Patent Office: Days
• US Class Current: 187/393
• CPC Class Codes: B66B 3/00 Applications of devices for indicating or signalling operating conditions of elevators
• CPC Class Codes: B66B 3/006 for guiding passengers to their assigned elevator car

Abstract

An LED (14) placed in a cage (3) and the like is allowed to blink at a high speed based on data outputted from an elevator control device (2), and persons who see the LED (14) are notified of usual guide information. Moreover, a camera portion of a cellular phone (6) carried by each of persons in the cage (3) or on platforms is allowed to receive modulated LED light, whereby a display of the cellular phone (6) is allowed to display thereon a registration state of a call of a wheelchair platform, a full-loaded state, a controlled operation state, a halt state, an under-inspection state, a cage arrival forecast and the like.

Claims

1. An elevator system, comprising:

a data receiving unit that receives service state data transmitted from a control device of an elevator;

a pulse modulation unit that separates the service state data received by the data receiving unit into first information and second information, pulse-modulates the first information by using the second information, and creates an LED blinking pattern; and

an LED drive unit that drives a visible light LED placed in a cage of the elevator or on a platform of the elevator in response to the LED blinking pattern created by the pulse modulation unit.

2. The elevator system according to claim 1,

wherein the second information contained in the service state data received by the data receiving unit is any of audio information, video information, textual information, which are digital-converted, or a command signal for controlling other electronic instruments.

3. The elevator system according to claim 1,

wherein the service state data created by the control device of the elevator is transmitted to the data receiving unit by using power line communication.

4. The elevator system according to claim 1,

wherein the control device of the elevator creates service state data in which plural data is frequency-multiplexed, and

the pulse modulation unit separates the data into the first information and the second information for each of frequency components obtained by separating the service state data for each frequency, creates a plurality of the LED blinking patterns by pulse-modulating the first information by using the second information, and allows the visible light LED to emit light.