KR20140132920A - Repeater System for Elevator - Google Patents

Repeater System for Elevator Download PDF

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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
Application number
KR1020130052251A
Other languages
Korean (ko)
Inventor
김문환
오성균
김덕원
박홍선
곽영복
이강열
Original Assignee
한국전파기지국주식회사
주식회사 엠티아이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전파기지국주식회사, 주식회사 엠티아이 filed Critical 한국전파기지국주식회사
Priority to KR1020130052251A priority Critical patent/KR20140132920A/en
Publication of KR20140132920A publication Critical patent/KR20140132920A/en

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    • 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

The present invention relates to a repeater system for an elevator. The repeater system for an elevator which relays radio communications between an elevator machine room and an elevator car moving up and down through a moving path comprises: a donor unit which includes an LTE donor antenna and an ISM link antenna, and converts and outputs frequency band signals of multiple mobile carriers, and is installed in the machine room; and a remote unit which includes an LTE remote antenna and an ISM link antenna, and receives the frequency converted by the ISM link antenna in the donor unit, and re-converts and outputs the frequency, and is installed in the elevator car.

Description

{Repeater System for Elevator}

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 remote antenna 22 and an ISM link antenna 21 and receives and converts the converted frequency through the ISM link antenna 12 of the donor unit 10 and outputs the converted frequency, Unit (20).

In addition, the donor unit 10 and the ISM link antennas 11 and 21 of the remote unit 20 respectively convert a plurality of frequency bands and output the frequency bands.

Also, the automatic gain control unit is provided with an automatic gain control unit for controlling the automatic gain of the remote unit 20 according to the movement of the elevator car 110.

The ISM link antenna 12 of the donor unit 10 transmits a signal to the ISM link antenna 12 installed in the elevator car 110 installed in another passage.

1, the donor unit 10 has a waterproof structure for external installation. The remote unit 20 has a small structure to be installed inside the elevator car 110. For example, the remote unit 20 has a built-in service antenna and employs a switch connector for forward output monitoring (using a DIP switch) Output port switching is possible).

According to the present invention, the donor unit 10 is installed in an elevator machine room or a control panel on the passageway. That is, the LTE donor antenna 11 is installed on the roof of the building outside the machine room. Also, an ISM Link antenna 12 is installed near the electric motor. And is wirelessly connected to the remote unit 20 through this.

Further, a remote unit 20 is installed in the elevator car 110.

For example, the remote unit 20 is installed in a place where a fluorescent lamp is installed. The LTE remote antenna 22 is a built-in type.

In addition, an ISM link antenna 21 is installed on the outer upper layer of the elevator car 110. Install it using cable vent for external installation.

<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 LTE donor antenna 11 is fixedly installed using the cable fixing portion.

<Using elevator car top>

The ISM link antenna 21 of the remote unit 20 is installed on the outside of the elevator car 110 (it is fixed using a magnet or a magic tape).

<Cable Entry Using Ventilation Port>

The remote unit 20 is operable using the internal power source of the elevator car 110 (AC 220V).

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 donor unit 10 and the remote unit 20 are linked to each other at 5.8 GHz, and the donor unit 10 and the base station 130 are linked at 1.8 GHz. The user can receive the smooth communication service while the elevator car 110 moves up and down the elevator section through the terminal 120 in the elevator car 110.

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 remote unit 20 installed inside the elevator car 110 is possible.

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 remote unit 20 according to the movement of the elevator car 110 (the automatic gain reduction of the remote unit 20 as the closer to the ISM Link antenna 12 of the donor unit 10) have.

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)

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 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. The method according to claim 1,
Wherein the donor unit and the ISM link antenna of the remote unit convert and output a plurality of frequency bands, respectively. The method according to claim 1,
And an automatic gain control unit for controlling the automatic gain of the remote unit according to the movement of the elevator car. The method according to claim 1,
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.
KR1020130052251A 2013-05-09 2013-05-09 Repeater System for Elevator KR20140132920A (en)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130052251A KR20140132920A (en) 2013-05-09 2013-05-09 Repeater System for Elevator

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KR (1) KR20140132920A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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