KR20140132920A - Repeater System for Elevator - Google Patents
Repeater System for Elevator Download PDFInfo
- Publication number
- KR20140132920A KR20140132920A KR1020130052251A KR20130052251A KR20140132920A KR 20140132920 A KR20140132920 A KR 20140132920A KR 1020130052251 A KR1020130052251 A KR 1020130052251A KR 20130052251 A KR20130052251 A KR 20130052251A KR 20140132920 A KR20140132920 A KR 20140132920A
- Authority
- KR
- South Korea
- Prior art keywords
- elevator
- antenna
- donor
- communication
- link antenna
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telecommunication relay system for elevators, and more particularly, to a telecommunication relay system for elevators which can provide a communication service through a frequency band conversion of a communication carrier without limitation to frequency bands of a plurality of telecommunication carriers ≪ / RTI >
In the conventional elevator car, there has been a problem that telephone communication can not be performed. However, there has been a law for allowing emergency communication in an elevator in recent years, and a communication apparatus is newly installed.
Currently, about 390,000 elevators are currently in operation in Korea, and it is now possible to install repeaters inside the elevator car.
However, it is difficult to apply a wired connection solution due to the characteristics of the elevator. Also, it is difficult to apply general RF repeater as an isolation problem. In addition, there is a problem in that when installing a repeater for each communication carrier in a narrow space, there is a problem that the aesthetic appearance is deteriorated and installation is difficult.
In addition, since most communication companies each have a communication frequency suited to its standard and provide services corresponding thereto, communication is impossible in an elevator car in which a specific communication company is not served by a consumer or a user.
Therefore, the user is required to provide an environment in which the elevator car can communicate freely.
Meanwhile, an elevator communication relay system (Korean Patent Registration No. 10-1141515, registered on Apr. 24, 2012) has been disclosed as a prior art in this field, but it measures the signal strength of the communication frequency to minimize communication disruption in the elevator car , Which can not guarantee the communication quality and was just an alarm for the communication disconnection.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a communication relay system for a elevator that can provide a communication service through frequency band conversion of a communication company without limitation to a frequency band of a communication company, .
According to a preferred embodiment of the present invention,
The elevator communication relay system
An elevator communication relay system for elevator communication relaying elevator cars moving up and down through an elevator machine room and a moving passage,
A donor unit provided with an LTE donor antenna and an ISM link antenna and converting and outputting frequency band signals of a plurality of communication carriers and installed in an elevator machine room;
And a remote unit provided with an LTE donor antenna and an ISM link antenna, receiving and converting the converted frequency through the ISM link antenna of the donor unit, and outputting the converted frequency, and being installed in the elevator car.
Preferably, the donor unit and the ISM link antenna of the remote unit convert and output a plurality of frequency bands, respectively.
Preferably, the automatic gain control unit includes an automatic gain control unit that can adjust the automatic gain of the remote unit according to the movement of the elevator car.
Also preferably, the ISM link antenna of the donor unit transmits a signal to an ISM link antenna installed in an elevator car installed in another passage.
INDUSTRIAL APPLICABILITY As described above, according to the communication relay system for an elevator according to the present invention, there is an effect of eliminating a shadow area inside the elevator car at a minimum cost without installing a wired facility.
Further, by using the ISM frequency band radio signal between the donor unit and the remote unit, the RF cable connection to the inside of the elevator car becomes unnecessary, and the construction cost is reduced and the device is simplified.
It also has the effect of sharing with the donor antenna of existing building equipment.
Further, there is an effect that a plurality of elevator cars (remote units) can be connected to one radio link (donor unit).
In addition, communication services can be provided without installing separate equipment for each communication company through conversion of various frequency bands.
1 is a schematic configuration diagram of a communication relay system for an elevator according to the present invention.
Fig. 2 is a view showing a remote device installed in the elevator car in Fig. 1. Fig.
Fig. 3 is a view showing the donor unit installed in the elevator machine room or the control panel in the upper part of the passage in Fig. 1;
4 is a diagram showing an overall configuration of a communication relay system for an elevator according to the present invention.
5 is a functional explanatory diagram of a communication relay system for an elevator according to the present invention.
Hereinafter, a communication relay system for an elevator according to the present invention will be described in detail with reference to the accompanying drawings.
Referring to FIG. 1, a communication relay system for an elevator according to the present invention converts frequencies to service a plurality of communication companies. The 5GHz ISM frequency band is used for broadband processing.
Generally, for the LTE communication service among the domestic communication companies, the company A uses a frequency band of 800MHz, the company B uses a frequency of 1.7GHz, and the company C uses a frequency of 2.1GHz. Therefore, in order to use the frequency bands of the three communication service companies, it is inconvenient to install all three relay devices.
The present invention has developed a device that can process all of the communication services of these three companies.
1, a communication relay system for an elevator includes:
An elevator communication relay system for elevator communication relaying elevator cars moving up and down through an elevator machine room and a moving passage,
A donor unit (10) provided with an LTE donor antenna (11) and an ISM link antenna (12), for converting and outputting frequency band signals of a plurality of communication carriers and installed in an elevator machine room;
An LTE
In addition, the
Also, the automatic gain control unit is provided with an automatic gain control unit for controlling the automatic gain of the
The
1, the
According to the present invention, the
Further, a
For example, the
In addition, an
<Example of system installation>
Install it by using power supply and other cable lead-in line beside machine room motor.
Install the ISM link antenna cable of the donor unit (10) using the cable entry line.
And the
<Using elevator car top>
The
<Cable Entry Using Ventilation Port>
The
Referring to FIGS. 1 to 4, in the present invention, LTE and ISM bands are used as frequency bands, automatic gain control is performed (55 to 60 dB) in the donor and remote units on the downlink and uplink, respectively, Up to 60 MHz can be used by all three companies (KT / SKT / LGU). Other matters are general matters, so detailed explanation will be omitted.
The features of the communication relay system for elevators according to the present invention will be summarized again.
Broadband transmission over ISM band at link frequency is possible (5GHz).
It is a solution that accommodates many service providers (up to 60MHz).
Both old and new elevators are serviceable wireless solutions.
In addition, the installation method is simpler and the installation period is shortened compared with the wired method, that is, the cable laying method.
Broadband transmission over ISM band at link frequency is possible (5GHz).
It is easy to commercialize because it accommodates all three operators of iTechong communication.
5, the
According to the present invention, the problem of isolation of the existing RF repeater is solved by converting the link frequency. That is, input / output frequency conversion (LTE <-> ISM) of the
In addition, PLUG & PLAY method is not required, and installation is simple because there is no separate device setup (SET UP). That is, the automatic gain control of the
In addition, remote automatic control and setting are possible using FSK communication.
In the case of 30 or more layers, the amplifier can be installed in the passageway or a repeater can be installed to enable communication.
10: Donor unit
11: LTE donor antenna
12: ISM link antenna
20: Remote unit
21: ISM link antenna
22: LTE remote antenna
Claims (4)
A donor unit provided with an LTE donor antenna and an ISM link antenna and converting and outputting a frequency band signal of a plurality of communication carriers and installed in an elevator machine room;
And a remote unit provided with an LTE remote antenna and an ISM link antenna, receiving and converting the converted frequency through the ISM link antenna of the donor unit, and outputting the converted frequency signal, and outputting the converted frequency to the elevator car.
Wherein the donor unit and the ISM link antenna of the remote unit convert and output a plurality of frequency bands, respectively.
And an automatic gain control unit for controlling the automatic gain of the remote unit according to the movement of the elevator car.
Wherein the ISM link antenna of the donor unit transmits a signal to an ISM link antenna installed in an elevator car installed in another passage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130052251A KR20140132920A (en) | 2013-05-09 | 2013-05-09 | Repeater System for Elevator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130052251A KR20140132920A (en) | 2013-05-09 | 2013-05-09 | Repeater System for Elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140132920A true KR20140132920A (en) | 2014-11-19 |
Family
ID=52453705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130052251A KR20140132920A (en) | 2013-05-09 | 2013-05-09 | Repeater System for Elevator |
Country Status (1)
Country | Link |
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KR (1) | KR20140132920A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109328438A (en) * | 2016-06-14 | 2019-02-12 | 通力股份公司 | The elevator wireless electric signal of enhancing covers |
CN113965936A (en) * | 2021-10-26 | 2022-01-21 | 广西壮族自治区通信产业服务有限公司工程分公司 | Elevator wireless communication microdistribution system |
-
2013
- 2013-05-09 KR KR1020130052251A patent/KR20140132920A/en not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109328438A (en) * | 2016-06-14 | 2019-02-12 | 通力股份公司 | The elevator wireless electric signal of enhancing covers |
CN109328438B (en) * | 2016-06-14 | 2022-03-04 | 通力股份公司 | Enhanced elevator radio signal coverage |
US11431372B2 (en) | 2016-06-14 | 2022-08-30 | Kone Corporation | Enhanced elevator radio signal coverage |
CN113965936A (en) * | 2021-10-26 | 2022-01-21 | 广西壮族自治区通信产业服务有限公司工程分公司 | Elevator wireless communication microdistribution system |
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