CN104410846A - Optical workstation of digital television - Google Patents

Optical workstation of digital television Download PDF

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Publication number
CN104410846A
CN104410846A CN201410764997.8A CN201410764997A CN104410846A CN 104410846 A CN104410846 A CN 104410846A CN 201410764997 A CN201410764997 A CN 201410764997A CN 104410846 A CN104410846 A CN 104410846A
Authority
CN
China
Prior art keywords
optical
light
power supply
passback
digital television
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410764997.8A
Other languages
Chinese (zh)
Inventor
许小波
曾俊
王家勇
金海陆
蒋小献
李正武
余才文
陈祖云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU XINGUANG MICROWAVE ENGINEERING Co Ltd
Original Assignee
CHENGDU XINGUANG MICROWAVE ENGINEERING Co Ltd
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 CHENGDU XINGUANG MICROWAVE ENGINEERING Co Ltd filed Critical CHENGDU XINGUANG MICROWAVE ENGINEERING Co Ltd
Priority to CN201410764997.8A priority Critical patent/CN104410846A/en
Publication of CN104410846A publication Critical patent/CN104410846A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the technical field of communication, in particular to an optical workstation of a digital television. The optical workstation comprises an upstream optical transmitter, a downstream optical receiver, an optical transmission unit and two power supply switches, wherein the upstream optical emitter is provided with two optical return transmission modules; the downstream optical receiver is provided with main and auxiliary optical receiving modules; the optical return transmission module is provided with an optical return transmission port, a data signal output by the optical return transmission port is transmitted through the optical transmission unit, and the main and auxiliary optical receiving modules are provided with optical receiving ports; the optical receiving ports and the optical return transmission port are connected with state monitoring responders respectively; the two power supply switches are a first power supply switch and a second power supply switch, the first power supply switch is connected to one end of a first power supply sampling output wire, a controller is connected to the other end of the first power supply sampling output wire, the second power supply switch is connected to one end of a second power supply sampling output wire, and a controller is connected to the other end of the second power supply sampling output wire, so that the technical effects of monitoring the state of a transmission line in real time and effectively removing faults can be achieved.

Description

A kind of Digital Television optical workstation
Technical field
The present invention relates to communication technical field, particularly relate to a kind of Digital Television optical workstation.
Background technology
Optical workstation is the cable TV bi-directional light node product of a new generation, and it completes downlink optical signal and is converted to radio television signal and reverse radio-frequency to the transfer process of inverse photoemission signal in hfc plant, serves radio and television, the communications field.
But during as the optical workstation of transmission equipment if there is fault, can cause communication accident, consequence is more serious.
Summary of the invention
The embodiment of the present invention, by providing a kind of Digital Television optical workstation, solves the technical problem easily causing communication accident in prior art, and then achieve can the state of Real-Time Monitoring transmission line, fault is carried out to the technique effect effectively got rid of.
The invention provides a kind of Digital Television optical workstation, comprising: up optical sender, descending optical receiver, optical transmission unit, with two mains switches, up optical sender is provided with two light passback transmitter modules, descending optical receiver is provided with active and standby Optical Receivers; Arrange light passback emission port at light passback transmitter module, the data-signal being returned emission port output by light transmits through optical transmission unit, arranges light-receiving port at active and standby Optical Receivers; Status monitoring transponder is connected at light-receiving port and light passback emission port; Two mains switches comprise the first mains switch and second source switch, and first power supply sampling output line one end connects the first mains switch, other end connection control device, and second source sampling output line one end connects second source switch, other end connection control device.
Further, descending optical receiver comprises photo-detector, low-noise preamplifier, luminous power Presentation Function circuit and active and standby Optical Receivers commutation circuit.
Further, be connected with signal distributor at light passback emission port, the signal exported be divided into the two paths of signals of balance.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
Owing to adopting, two mains switches are set in Digital Television optical workstation, at descending optical receiver, active and standby Optical Receivers is set, at up optical sender, two light passback transmitter modules are set, and, at active and standby Optical Receivers, two light-receiving ports are set, light passback emission port is set at light passback transmitter module, at light emission port and light-receiving port connection status monitoring transponder respectively, thus by status monitoring transponder monitoring port state, two mains switches comprise the first mains switch and second source switch, first power supply sampling output line one end connects the first mains switch, other end connection control device, second source sampling output line one end connects second source switch, other end connection control device, when a failure occurs, close current Optical Receivers or light passback transmitter module, enable another Optical Receivers or light passback transmitter module, solve in prior art due to transmission break down time, easily cause the technical problem of communication accident, and then achieve can the state on sense transmission line road in real time, fault is carried out to the technique effect effectively got rid of.
Accompanying drawing explanation
Fig. 1 is the module diagram of Digital Television optical workstation in the embodiment of the present invention.
Embodiment
The embodiment of the present invention, by providing a kind of Digital Television optical workstation, solves the technical problem easily causing communication accident in prior art, and then achieve can the state of Real-Time Monitoring transmission line, fault is carried out to the technique effect effectively got rid of.
In order to solve the technical problem easily causing communication accident in above-mentioned prior art in communication line process, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
The embodiment of the present invention provides a kind of Digital Television optical workstation, comprise: up optical sender 10, descending optical receiver 20, optical transmission unit 30, with two mains switches 40, up optical sender 10 is provided with two light passback transmitter modules 101,102, descending optical receiver 20 is provided with active and standby Optical Receivers 201,202; At light passback transmitter module 101,102, light passback emission port 1011,1021 is set, the data-signal being returned emission port 1011,1021 output by light transmits through optical transmission unit 30, at active and standby Optical Receivers 201,202 arrange light-receiving port 2011,2021; Status monitoring transponder 50 is connected at light-receiving port 2011,2021 and light passback transmitting terminal 1011,1021; Two mains switches comprise the first mains switch 401 and second source switch 402, first mains switch 401 is connected to first power supply sampling output line one end that the first mains switch 401 detects, other end connection control device, second source switch 402 is connected, other end connection control device to second source sampling output line one end that second source switch 402 detects.
In a particular embodiment, if internal control automatically switches on another power supply during the power failure of this Digital Television optical workstation, thus the accident avoiding power-off to cause.Particularly, in this Digital Television optical workstation, light-receiving is had to back up and light transmitting backup, wherein light-receiving backup is specially, by arranging two Optical Receivers 201,202 at descending optical receiver 20, when one of them Optical Receivers 201 breaks down, enable another Optical Receivers 202, particularly, when detecting Optical Receivers 201 and whether breaking down, by being arranged at Optical Receivers 201, the status monitoring transponder 50 of 202 is monitored.At the first mains switch 401, the first power supply sampling output line is set, simultaneously, this first power supply sampling output line other end is connected to controller, sample output line by the first power supply and sampling detection is carried out to the first mains switch 401, thus controlled to switch by controller according to the result that sampling detects, in like manner, second source switch 402 is connected with second source sampling output line, simultaneously this second source sampling output line also connection control device.Realize the first mains switch 401, the switching controls of second source switch 402.
Particularly, descending optical receiver 20 comprises photo-detector, low noise preamplifier, luminous power Presentation Function circuit and active and standby light-receiving commutation circuit, photo-detector adopts PIN pipe and match circuit, and luminous power Presentation Function circuit adopts 5-7 light-emitting diode stepping to be luminous power.Low noise preamplifier basic function is the low noise, the low distortion wide-band amplify that realize signal.Active and standby light-receiving commutation circuit can control the switching of active and standby Optical Receivers 201,202.
At light passback transmitter module 101,102, light passback emission port 1011,1021 is set, owing to being connected with signal distributor at light passback emission port 1011,1021, this signal distributor is divided into the two paths of signals of balance to the signal exported, return emission port 1011 by two light, 1021 send.
Export high level at passback emission port 1011,1021, improve output level and increase the scope covering quorum sensing inhibitor.
By above-mentioned technical scheme, solve the technical problem easily occurring communication failure in prior art, thus achieve effective monitoring state, avoid the generation of accident.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (3)

1. a Digital Television optical workstation, is characterized in that, comprising: up optical sender, descending optical receiver, optical transmission unit, and two mains switches, up optical sender is provided with two light passback transmitter modules, descending optical receiver is provided with active and standby Optical Receivers; Arrange light passback emission port at light passback transmitter module, the data-signal being returned emission port output by light transmits through optical transmission unit, arranges light-receiving port at active and standby Optical Receivers; Status monitoring transponder is connected at light-receiving port and light passback emission port; Two mains switches comprise the first mains switch and second source switch, and first power supply sampling output line one end connects the first mains switch, other end connection control device, and second source sampling output line one end connects second source switch, other end connection control device.
2. Digital Television optical workstation according to claim 1, is characterized in that, descending optical receiver comprises photo-detector, low-noise preamplifier, luminous power Presentation Function circuit and active and standby Optical Receivers commutation circuit.
3. Digital Television optical workstation according to claim 1, is characterized in that, is connected with signal distributor, the signal exported is divided into the two paths of signals of balance at light passback emission port.
CN201410764997.8A 2014-12-11 2014-12-11 Optical workstation of digital television Pending CN104410846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410764997.8A CN104410846A (en) 2014-12-11 2014-12-11 Optical workstation of digital television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410764997.8A CN104410846A (en) 2014-12-11 2014-12-11 Optical workstation of digital television

Publications (1)

Publication Number Publication Date
CN104410846A true CN104410846A (en) 2015-03-11

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Family Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245287A (en) * 2015-09-24 2016-01-13 江苏阿尔特光电科技有限公司 Indoor type optical receiver

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004032177A (en) * 2002-06-24 2004-01-29 Miharu Communications Co Ltd Method of modulating signal for cable television system, and node for cable television system
CN201750417U (en) * 2010-01-22 2011-02-16 泉州市视通光电网络有限公司 Two-way network management optical workstation
CN202661612U (en) * 2012-05-12 2013-01-09 广东东研网络科技股份有限公司 Optical workstation dual power supply configuration detection system
CN203482336U (en) * 2014-01-10 2014-03-12 成都康特电子高新科技有限责任公司 Broadcast/television optical workstation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004032177A (en) * 2002-06-24 2004-01-29 Miharu Communications Co Ltd Method of modulating signal for cable television system, and node for cable television system
CN201750417U (en) * 2010-01-22 2011-02-16 泉州市视通光电网络有限公司 Two-way network management optical workstation
CN202661612U (en) * 2012-05-12 2013-01-09 广东东研网络科技股份有限公司 Optical workstation dual power supply configuration detection system
CN203482336U (en) * 2014-01-10 2014-03-12 成都康特电子高新科技有限责任公司 Broadcast/television optical workstation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105245287A (en) * 2015-09-24 2016-01-13 江苏阿尔特光电科技有限公司 Indoor type optical receiver

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Application publication date: 20150311