WO2012109938A2 - Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial - Google Patents

Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial Download PDF

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Publication number
WO2012109938A2
WO2012109938A2 PCT/CN2011/083462 CN2011083462W WO2012109938A2 WO 2012109938 A2 WO2012109938 A2 WO 2012109938A2 CN 2011083462 W CN2011083462 W CN 2011083462W WO 2012109938 A2 WO2012109938 A2 WO 2012109938A2
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
terminal device
supply voltage
remote
remote power
Prior art date
Application number
PCT/CN2011/083462
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English (en)
Chinese (zh)
Other versions
WO2012109938A3 (fr
Inventor
高兴国
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN2011800029358A priority Critical patent/CN103250373A/zh
Priority to PCT/CN2011/083462 priority patent/WO2012109938A2/fr
Publication of WO2012109938A2 publication Critical patent/WO2012109938A2/fr
Publication of WO2012109938A3 publication Critical patent/WO2012109938A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/547—Systems for power line communications via DC power distribution

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a remote power supply method, apparatus, and system for a coaxial network.
  • the coaxial network not only carries the traditional video services, but also provides data services and voice services, and may even involve some emergency services such as home security alarms.
  • voice services and emergency services are important services, and the reliability requirements are very high. Even if the system is powered off, voice services and emergency services must be able to work normally for a certain period of time to ensure security monitoring in the home. When a user has an emergency, they can get help in time by phone.
  • the voice service and the emergency service of the coaxial network are mainly implemented by the terminal equipment in the user's home, and the general terminal equipment is powered by the local AC power supply in the user's home. Therefore, in order to solve the problem that the voice service cannot be realized after the AC power failure in the user's home, it is required.
  • the terminal device has a backup function to ensure that the voice service and the emergency service can still be implemented normally after the AC power failure in the user's home.
  • the current standby function of the terminal device is implemented by adding a rechargeable battery to the terminal device; when the terminal device is powered by the local power supply, the rechargeable battery is in a charging state; when the power supply of the local power supply in the user's home is interrupted, that is, after the terminal device is powered off Then, the terminal device is powered by the rechargeable battery to ensure the normal implementation of the voice service and the emergency service.
  • Embodiments of the present invention provide a remote power supply method, apparatus, and system for a coaxial network.
  • the embodiment of the present invention adopts the following technical solutions:
  • a remote power supply method for a coaxial network comprising: Acquiring a remote supply voltage coupled to the coaxial network, the remote supply voltage being generated by the remote head end device and coupled to the coaxial network; a head end device comprising:
  • a remote power supply unit for generating a remote supply voltage
  • a coupling unit configured to couple the remote power supply voltage to the coaxial network, so that the terminal device acquires the remote power supply voltage, and supplies the remote power supply voltage to the terminal device as a power supply source of the terminal device.
  • a terminal device comprising:
  • a remote power take-off unit configured to acquire a remote power supply voltage coupled on the coaxial network, where the remote power supply voltage is generated by the head end device;
  • a power supply unit configured to supply the remote power supply voltage as a power supply of the terminal device to supply power to the terminal device.
  • a remote power supply system for a coaxial network comprising: a head end device and at least one terminal device.
  • the head end device is configured to generate a remote power supply voltage; the remote power supply voltage is coupled to the coaxial network, so that the terminal device acquires the remote power supply voltage, and the remote power supply voltage is used as the power supply of the terminal device
  • the power supply supplies power to the terminal device.
  • the terminal device is configured to acquire a remote power supply voltage coupled on the coaxial network, where the remote power supply voltage is generated by the head end device; and the remote power supply voltage is used as a power supply power of the terminal device to supply power to the terminal device.
  • the remote power supply method, device and system for a coaxial network provided by the embodiment of the present invention generate a remote power supply voltage through a head end device, and couple the remote power supply voltage to the coaxial network, and the terminal device acquires coupling on the coaxial network.
  • the remote power supply voltage is used as the power supply source to supply power to the terminal device, so that the terminal device can be powered by the stable power source in the head end device, thereby avoiding the problem that the voice service and the emergency service cannot be realized after the power failure. , improve the reliability of the terminal equipment.
  • FIG. 1 is a flowchart of a remote power supply method for a coaxial network according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a head end device in a remote power supply device of a coaxial network according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a terminal device in a remote power supply device of a coaxial network according to an embodiment of the present invention
  • FIG. 5 is a flowchart of remote power supply of a head end device in a remote power supply system of a coaxial network according to an embodiment of the present invention
  • FIG. 6 is a flowchart of remote power supply of a terminal device in a remote power supply system of a coaxial network according to an embodiment of the present invention. detailed description
  • a remote power supply method for a coaxial network includes:
  • a remote power supply voltage coupled on the coaxial network where the remote power supply voltage is generated by a remote head end device and coupled to the coaxial network; in the coaxial network, the head end device passes through the telecommunication network.
  • the independent power supply is used for power supply.
  • the independent power supply is more reliable than the user's home. Even when the local power supply in the user's home is powered off, the head end equipment can also be powered.
  • the head end equipment passes the voltage of the independent power supply.
  • Transforming produces a remote supply voltage, which is DC or ⁇ frequency AC.
  • the head end device couples the generated remote power supply voltage to the coaxial cable of the coaxial network for transmission, so that the terminal device of the coaxial network acquires the remote power supply voltage as the power supply voltage of the terminal device, and supplies power to the terminal device.
  • the terminal device acquires a remote power supply voltage coupled to the coaxial cable, and the remote power supply voltage; after the terminal device acquires the remote power supply voltage, the remote power supply voltage is used as the power supply.
  • the power supply of the remote power supply voltage as the power supply of the terminal device for the terminal device is specifically as follows:
  • the remote power supply voltage is transformed, and the transformed remote power supply voltage is used as power supply for the terminal device to supply power to the terminal device.
  • the terminal device obtains the remote power supply voltage
  • the voltage value of the remote power supply voltage is high and cannot be directly used; therefore, in the terminal device, the remote power supply voltage as the power supply source needs to be transformed so that the remote power supply voltage is suitable for The terminal device, in turn, supplies power to the terminal device.
  • a remote power supply method for a coaxial network generates a remote power supply voltage through a head end device, and couples a remote power supply voltage to a coaxial network, and the terminal device acquires a remote power supply voltage coupled to the coaxial network.
  • the remote power supply voltage is used as a power supply to supply power to the terminal device, thereby realizing power supply to the terminal device by using a stable power source in the head end device.
  • the method further includes:
  • the headend device generates a data signal and transmits the data signal over the coaxial network.
  • the services include voice services and emergency services as important services, and data services and video services as non-essential services.
  • the data signal for realizing the service is generally an analog signal of 5 megahertz (MegaHertz, hereinafter referred to as MHz) to 1 GHz (Gigahertz, hereinafter referred to as GHz).
  • the head end equipment generates remote power supply voltage and data signals, and transmits them through a coaxial cable in a coaxial network; wherein the remote power supply voltage is direct current or low frequency alternating current, and the data signal is a high frequency electrical signal;
  • the remote power supply voltage and the data signal in the coaxial cable are filtered to obtain the remote power supply voltage and the data signal respectively;
  • the terminal device obtains the remote power supply voltage
  • the voltage value of the remote power supply voltage is high and cannot be directly used; therefore, in the terminal device, the remote power supply voltage as the power supply source needs to be transformed so that the remote power supply voltage is suitable for The terminal device, in turn, supplies power to the terminal device.
  • the terminal device After the terminal device obtains the data signal, the corresponding service is implemented after parsing.
  • the data signal sent by the head end device through the coaxial cable includes data required for the terminal device to perform video service; the terminal device acquires the data signal in the coaxial network by DC filtering, and parses the data signal to execute Video business.
  • the head end device supplies power to the terminal device through a remote power supply voltage coupled on the coaxial cable in the coaxial network
  • the data signal is transmitted through the coaxial cable, so that the terminal device realizes the service, and thus the terminal device is remotely powered.
  • the reliability of the business implementation is guaranteed.
  • a terminal device installed in a user's home it is possible to perform a plurality of services at the same time, thereby consuming a large amount of power.
  • the power consumption of the head end device is excessive.
  • the remote power supply voltage is used as the power supply of the terminal device to supply power to the terminal device, and the method further includes:
  • the remote supply voltage is switched.
  • the terminal device is mainly powered by the local power supply located in the user's home as the main power supply of the terminal device.
  • the local power supply When the terminal device detects the local power supply voltage provided by the local power supply, the local power supply is used.
  • the terminal device performs power supply.
  • the terminal device performs important services and non-essential services, and the non-essential services include: data services and video services, where the important services include: voice services and emergency services.
  • the terminal device cannot detect the local power supply voltage, then switches the remote power supply voltage obtained by the terminal device, and supplies power to the terminal device by transforming the remote power supply voltage.
  • the terminal device When the terminal device performs the power supply between the remote power supply and the local power supply, the terminal device is preferably powered by the local power supply when the local power supply of the user's home is normal. When the local power supply in the user's home is powered off, the head is passed. The terminal device performs remote power supply, thereby reducing the power consumption of the head end device, avoiding the damage of the head end device, and improving the reliability of the terminal device service execution in the coaxial network.
  • the method further includes:
  • the important services include: voice services and emergency services.
  • the terminal device switches to use the remote power supply voltage provided by the head end device, and after the voltage transformation, powers the terminal device; at this time, the terminal device continues to acquire the coaxial cable of the coaxial network.
  • the transmitted data signal is parsed; when the related data is executed by the parsed data signal, the terminal device abandons the execution of the non-essential service and performs the important service due to the remote power supply state, thereby reducing the consumption of the terminal device.
  • the power which in turn reduces the power consumption of the head end equipment, avoids the damage caused by the excessive power consumption of the head end equipment, and improves the execution of important services such as voice service and emergency service when the terminal equipment is interrupted by the user's home. reliability.
  • the present invention further provides a head end device, as shown in FIG. 2, including:
  • a remote power supply unit for generating a remote supply voltage
  • a coupling unit configured to couple the remote power supply voltage to the coaxial network, so that the terminal device acquires the remote power supply voltage, and supplies the remote power supply voltage to the terminal device as a power supply source of the terminal device.
  • the head end device further includes:
  • the present invention also provides a terminal device, as shown in FIG. 3, including:
  • a remote power take-off unit configured to acquire a remote power supply voltage coupled on the coaxial network, where the remote power supply voltage is generated by the head end device;
  • a power supply unit configured to supply the remote power supply voltage as a power supply of the terminal device to supply power to the terminal device.
  • the remote power supply voltage supplies power to the terminal device as a power supply source of the terminal device.
  • the terminal device further includes:
  • the switching unit switches to use the remote power supply voltage if a local power supply voltage is not detected.
  • the terminal device further includes:
  • a business unit used to abandon the execution of non-essential services in the parsed data signal, and perform important services
  • the non-essential services include: data services and video services,
  • the important services include: voice services and emergency services.
  • the actual coaxial network system shown in FIG. 4 includes: a data network, an optical line terminal (hereinafter referred to as OLT), an overcurrent distributor, the above-mentioned head end device, and at least one of the foregoing terminals. Device;
  • the OLT implements two-way aggregation and forwarding of optical signals.
  • the data network transmits the data in the optical signal network to the OLT through the optical fiber transmission;
  • the OLT distributes the acquired optical signal to the corresponding head end device, and the head end device receives the optical signal distributed by the OLT. Parsing, converting the optical signal into a digital signal, so that the head end device processes the digital signal; converting the processed digital signal into an analog signal for transmission on the coaxial cable; the analog signal is the head end The data signal generated by the device.
  • the head end device includes:
  • a remote power supply unit for generating a remote supply voltage
  • the head end device further includes:
  • a data processing unit configured to generate a data signal, and send the data signal through the coaxial network.
  • the terminal device as shown in FIG. 3, includes:
  • a remote power take-off unit configured to acquire a remote power supply voltage coupled on the coaxial network, where the remote power supply voltage is generated by the head end device;
  • a power supply unit configured to supply the remote power supply voltage as a power supply of the terminal device to supply power to the terminal device.
  • the remote power supply voltage supplies power to the terminal device as a power supply source of the terminal device.
  • the terminal device further includes:
  • the switching unit switches to use the remote power supply voltage if a local power supply voltage is not detected.
  • the terminal device further includes:
  • a business unit used to abandon the execution of non-essential services in the parsed data signal, and perform important services
  • the non-essential services include: data services and video services,
  • the method includes:
  • the remote power supply unit generates a remote power supply voltage.
  • the remote power supply unit in the head end device transforms the independent power source built in the telecommunication network to generate a remote power supply voltage for the terminal device, and the remote power supply voltage is a direct current or a low frequency alternating current, such as a low frequency alternating current. Then the frequency is at 5 Hz.
  • the coupling unit couples the remote power supply voltage to the coaxial network, so that the terminal device acquires the remote power supply voltage, and uses the remote power supply voltage as a backup power supply source of the terminal device.
  • the coupling unit in the head end device transmits the remote power supply voltage to the coaxial cable in the coaxial network for transmission, so that the terminal device obtains the remote power supply voltage, and uses the remote power supply voltage as the backup power supply source of the terminal device.
  • the method further includes:
  • a data processing unit generates a data signal and transmits the data signal over the coaxial network.
  • the OLT reaches the head end device, and is parsed and processed by the data processing unit in the head end device, and finally converted into an analog signal transmitted in the coaxial cable, and transmitted to the corresponding signal.
  • the terminal device; the analog signal is the data signal, and the frequency range is generally 5MHz-lGHz, but is not limited to this range.
  • the local power supply in the user's home works normally, the local power supply is transformed by the power supply unit in the terminal device, and the local power supply is performed; at this time, the terminal device continuously receives the data signal and the remote power supply transmitted in the coaxial cable. Voltage; wherein the terminal device obtains the remote power supply voltage as the backup power supply through the AC filter, but when the local power supply is normally powered in the user's home, the local power supply is first performed by the local power supply; and the data signal obtained by the DC filter is used by the terminal.
  • the service unit of the device performs parsing, and performs corresponding services according to the parsed data signal.
  • the service includes a video service, a voice service, a data service, and an emergency service, where the video service enables the terminal device to have a video playback function, for example, the terminal device can be a digital TV set-top box; and the voice service enables the terminal device to have a remote call function.
  • the terminal device may be a telephone; the data service enables the terminal device to have a transmission function of the internet data, and the terminal device may be a modem; and the emergency service enables the terminal device to have a function related to security monitoring of the smart home.
  • the method includes:
  • the remote power take-off unit acquires a remote power supply voltage coupled on the coaxial network, and the remote power supply voltage is generated by the head end device.
  • the power supply unit supplies the remote power supply voltage as a power supply of the terminal device to supply power to the terminal device.
  • the local power supply voltage provided by the local power supply is detected. If the local power supply voltage can be detected, the terminal device supplies power through the local power supply; when the local power supply is powered off, the terminal device cannot detect the terminal device.
  • the local power supply voltage provided by the local power supply the terminal device is switched by the switching unit to provide the use of the head end device
  • the remote power supply voltage the terminal device supplies power to the terminal device according to the obtained remote power supply voltage, specifically:
  • the remote power supply voltage is transformed, and the transformed remote power supply voltage is used as a power supply source of the terminal device to supply power to the terminal device.
  • the remote power supply voltage needs to be transmitted on the coaxial cable.
  • the voltage value of the remote power supply voltage is relatively high; therefore, when the terminal device is powered by the remote power supply voltage, the terminal needs to pass through the terminal.
  • the power supply unit in the device transforms the remote supply voltage to make it suitable for the terminal device.
  • the terminal device when the terminal device performs all services, the power consumption is large; when there are multiple terminal devices in the coaxial network, if each terminal device performs remote power supply through the head end device to perform all services , the power consumption of the head end equipment is beyond the range that it can withstand, thereby causing damage to the head end equipment and reducing the reliability of the coaxial network; therefore, in order to reduce the power consumption of the head end equipment, further, After switching the power supply to the terminal device by using the remote power supply voltage, the terminal device further includes:
  • the business unit abandons the non-essential business in the parsed data signal and performs important business
  • the non-essential services include: data services and video services,
  • the important services include: voice services and emergency services.
  • the terminal device acquires the data signal transmitted on the coaxial cable in the coaxial network, and parses the service unit to perform the corresponding service; when the local power supply in the user's home is disconnected, in order to reduce the power consumption of the head end device,
  • the service unit of the terminal device abandons execution by shutting down non-essential services such as data services and video services, and retains important services such as voice services and emergency services, so as to keep the telephones in the homes and the security monitoring devices in the smart homes running normally.
  • the terminal device can be remotely powered completely through the head end device according to the actual situation, that is, the remote power supply voltage is used as the main power supply, for example, when there is a terminal device in the coaxial network,
  • the terminal device can be remotely powered by the headend device.
  • the terminal device is preferred to be local
  • the terminal device implements all services.
  • the remote power supply voltage coupled to the coaxial cable is used for power supply, that is, the backup power supply is used to ensure reliable implementation of important services in the terminal device.
  • the remote power supply method, device and system for a coaxial network provided by the embodiment of the present invention generate a remote power supply voltage through a head end device, and couple the remote power supply voltage to the coaxial network, and the terminal device acquires coupling on the coaxial network.
  • the remote power supply voltage is used as the power supply source to supply power to the terminal device, so that the terminal device can be powered by the stable power source in the head end device, thereby avoiding the problem that the voice service and the emergency service cannot be realized after the power failure. , improve the reliability of the terminal equipment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un système permettant une alimentation électrique distante dans un réseau coaxial, qui appartiennent au domaine de la technologie de la communication, et sont conçus pour résoudre le problème rencontré dans l'état de la technique où, lorsqu'une source d'alimentation électrique locale située au domicile d'un utilisateur est mise hors service, la fiabilité de réalisation des services d'un dispositif terminal du réseau coaxial diminue, empêchant ainsi l'accès au service vocal et au service d'urgence parmi d'autres services importants. Le procédé permettant une alimentation électrique distante dans un réseau coaxial comprend les étapes suivantes : obtenir une tension d'alimentation distante couplée au réseau coaxial, la tension d'alimentation distante étant générée par un dispositif de tête de réseau situé à distance et couplée au réseau coaxial; et fournir une alimentation en utilisant la tension d'alimentation distante comme source d'alimentation électrique.
PCT/CN2011/083462 2011-12-05 2011-12-05 Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial WO2012109938A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011800029358A CN103250373A (zh) 2011-12-05 2011-12-05 同轴网络的远程供电方法、装置和系统
PCT/CN2011/083462 WO2012109938A2 (fr) 2011-12-05 2011-12-05 Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/083462 WO2012109938A2 (fr) 2011-12-05 2011-12-05 Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial

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WO2012109938A2 true WO2012109938A2 (fr) 2012-08-23
WO2012109938A3 WO2012109938A3 (fr) 2012-11-08

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PCT/CN2011/083462 WO2012109938A2 (fr) 2011-12-05 2011-12-05 Procédé, dispositif et système permettant une alimentation électrique distante dans un réseau coaxial

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CN (1) CN103250373A (fr)
WO (1) WO2012109938A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1547331A (zh) * 2003-12-11 2004-11-17 山东华泰智能技术有限公司 智能化小区可视对讲装置
CN1852449A (zh) * 2005-07-15 2006-10-25 华为技术有限公司 一种备电系统及其实现供电的方法
CN101980469A (zh) * 2010-09-09 2011-02-23 西北工业大学 一种复合信号传输的保护式继电器耦合网络

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US20040017911A1 (en) * 2002-04-29 2004-01-29 Nattkemper Dieter H. Line powered network element
US7783270B1 (en) * 2003-12-08 2010-08-24 Luxul Corporation Adjustable amplifier for wireless data systems
CN100544393C (zh) * 2005-06-30 2009-09-23 华为技术有限公司 远端供电系统
CN201975851U (zh) * 2010-10-11 2011-09-14 郑献东 广电专用直流应急电源

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1547331A (zh) * 2003-12-11 2004-11-17 山东华泰智能技术有限公司 智能化小区可视对讲装置
CN1852449A (zh) * 2005-07-15 2006-10-25 华为技术有限公司 一种备电系统及其实现供电的方法
CN101980469A (zh) * 2010-09-09 2011-02-23 西北工业大学 一种复合信号传输的保护式继电器耦合网络

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CN103250373A (zh) 2013-08-14

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