Elevator motion alert system
US-2017137256-A1 · May 18, 2017 · US
Elevator motion alert system
US10252882B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10252882-B2 |
| Application number | US-201615344626-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2016 |
| Priority date | Nov 17, 2015 |
| Publication date | Apr 9, 2019 |
| Grant date | Apr 9, 2019 |
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- Title
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- Abstract
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Abstract
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An elevator motion alert system is configured to alert a person of an object moving in at least one hoistway of an elevator system. The elevator motion alert system includes a sensor configured to detect object motion. A transmitter of the elevator motion alert system is carried by the object and is configured to transmit a pressure wave at a pre-defined frequency upon movement of the object. An electronic device of the elevator motion alert system is configured to receive and process the pressure wave for alerting the person of object movement.
First claim
Opening claim text (preview).
What is claimed is: 1. An elevator car motion alert system for signaling motion of at least one elevator car to a person, the elevator car motion alert system comprising: a plurality of motion sensors configured to detect car motion, wherein each one is carried by a respective elevator car of the at least one elevator car; a plurality of transmitters carried by a respective elevator car of the at least one elevator car, and each configured to broadcast a pressure wave having a predefined unique frequency specific to each one of the at least one elevator car and upon movement of a respective elevator car of the at least one elevator car and detected by a respective motion sensor of the plurality of motion sensors; and an electronic device configured to receive and process the pressure wave for alerting the person of the movement of the respective elevator car, and is configured to recognize the predefined unique frequency broadcasted by each one of the plurality of transmitters and assign the recognized unique frequency to the respective elevator car of the at least one elevator car. 2. The elevator car motion alert system set forth in claim 1 , wherein the pressure wave includes a DTMF communication protocol.
Assignees
Inventors
Classifications
- B66B5/005Primary
Safety of maintenance personnel · CPC title
for safety reasons · CPC title
Indicators · CPC title
Status alarms (G08B21/02 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US10252882B2 cover?
- An elevator motion alert system is configured to alert a person of an object moving in at least one hoistway of an elevator system. The elevator motion alert system includes a sensor configured to detect object motion. A transmitter of the elevator motion alert system is carried by the object and is configured to transmit a pressure wave at a pre-defined frequency upon movement of the object. A…
- Who is the assignee on this patent?
- Otis Elevator Co
- What technology area does this patent fall under?
- Primary CPC classification B66B5/005. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 09 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).