• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE536959C2
    申请号:SE1300392
    申请日:2013-05-29
    公开日:2014-11-11
    发明作者:Nils-Arne Lindström
    申请人:Qt Systems Ab；
    IPC主号:
    专利说明:

    536 959 according to the patent specification, however, differs to a substantial extent from the construction in accordance with the present patent application.
    The major overall difference between the system according to the patent specification and the present invention is that the system according to the patent specification has the ambition to communicate between properties while the present invention has the opposite ambition to communicate only within limited cabling. In Sweden, this construction does not work as the zero and protective earth are usually short-circuited at the property connection. The technical difference is that the invention according to this patent application intends to inject signal between zero and ground without limitation in propagation, while the present invention induces a barrier (impedance for the carrier frequency) on the neutral conductor which is to carry the data transmission.
    U.S. Pat. No. 1,706,136 discloses a system for communicating via the mains in a building.
    When communicating, this is done via arm zero. The system differs substantially from the process according to the present patent application. For example, the system uses at least one phase for communication. The patent specification US5933073 also describes a variant of a device and a method for communicating via the electricity network. The device and method according to the patent specification differ significantly from that of the examined construction. For example, a phase is used in communication.
    WO993 0434 describes a system for communicating via electricity networks.
    The communication is intended to take place between a power company and individual households. The system according to the patent specification differs significantly from the present system.
    GB2094598 discloses a transmission system for transmitting digital signals over an electrical distribution network. The system can be used for control and components as well as for reading purposes. The system differs from the system of the present patent application.
    Although a number of different types of methods, systems and devices for transmitting data via the electricity network have been developed, there are still a number of problems with existing methods, systems and devices. The object of the present invention The main object of the present invention is to create an improved method for transmitting data via electricity networks which solves or reduces at least one of the above-mentioned problems. The object is achieved by a method according to the claims.
    Brief Description of Figures In the following detailed description of the present invention, references and references to the following figures will be made. These urer gures are briefly described in the following ur gur list. Note that the ur gures are schematic and that details in them may be omitted which are obvious to a person skilled in the art in the area to which the invention relates.
    Figures 1 and 2 schematically illustrate a first embodiment of a method for communicating via an electrical network.
    Figure 2 schematically shows a part of a system for communication via electricity networks in accordance with the present invention.
    Detailed description of the invention With reference to the devices, a method and system 1 for data transmission via the neutral conductor 2, or alternatively the protective earth conductor 3, in a local electrical network (cabling) is schematically illustrated.
    The construction comprises a delimited pair of cables 4 consisting of a neutral conductor 2 and an earth conductor 3 over which a data transmission with a suitable carrier frequency takes place. used. The impedance 5 can be induced on the neutral conductor 2 or the protective earth 3 without galvanic connection, in or next to (at) a power station 6.
    In order to prevent, or alternatively reduce, the system according to the present invention being disturbed by, or interfering with, other systems communicated via the electricity grid, the neutral conductor (zero) 2 and the protective earth are connected. This can be done, for example, in a security center 6 or the like. When an increased impedance of the carrier frequency is induced on one of the conductors, the carrier frequency can be injected and detected between zero 2 and protective earth 3 along the entire cable (conductor).
    The carrier frequency is estimated to be detected at a distance of at least 500 meters. A suitable frequency for the carrier frequency is assumed to be approximately 125kHz but also works with both lower and 536,959 higher frequencies. It is conceivable, for example, that the carrier frequency is between 3kHz and 148.5 kHz in accordance with some sub-frequency range according to CENELEC EN 50065-1.
    The method is performed, for example, with a system comprising at least one transmitter / receiver unit and at least one second transmitter / receiver unit which are connected to the members.
    One of the transmitter / receiver units consists of a master 7 and at least one other of the transmitter / receiver units consists of a slave unit 8. The mast 7 and the slave unit (slave units) 8 preferably communicate bi-directionally to each other via the mains.
    In alternative embodiments, your masts 7 and slaves 8 can be included in the system.
    In the detailed description of the present invention, construction details may be omitted which are obvious to a person skilled in the art to which the device relates.
    Such obvious construction details are included to the extent required to obtain a malfunction for the present invention. Although certain preferred embodiments have been shown in more detail, variations and modifications of the method and apparatus may become apparent to those skilled in the art to which this invention pertains. All such modifications and variations are considered to fall within the scope of the appended claims.
    Advantages of the Invention With the present invention, a number of advantages are achieved. The most obvious is that an improved variant of the method for communicating via the electricity grid is obtained. Another advantage of the present invention is that the communication area is delimited. A further advantage of the present method is that it is insensitive to disturbances occurring at different phases from different loads. A further advantage of the present invention is that the system has a low cost compared to known systems. An additional advantage of the system can be expanded to a number of arbitrary transmitters / receivers. The method also has the advantage that this allows bidirectional communication.
    权利要求:
    Claims (8)
    [1]
    A method for transmitting data via mains, comprising at least one first electrical conductor and at least one second electrical conductor, with at least one system comprising at least one transmitter / receiver and at least one second transmitter / receiver which are connected to the conductors characterized by the first the electrical conductor consists of a neutral conductor (2) and the other conductor consists of a protective earth conductor (3) and that these at one point in relation to the rest of the mains are short-circuited with each other, and that an increased impedance (5) is induced for the carrier is used in the idea of one of the leaders.
    [2]
    Method according to Claim 1, characterized in that the increased impedance is induced for the carrier used in the neutral conductor (2).
    [3]
    Method according to one of the preceding claims, characterized in that the resonant frequency of the impedance corresponds to the frequency of the carrier used.
    [4]
    Method according to at least one of the preceding claims, characterized in that the carrier frequency is in the range 3 kHz to 148.5 kHz.
    [5]
    Method according to Claim 4, characterized in that the carrier frequency is approximately 125 kHz.
    [6]
    Method according to at least one of the preceding claims, characterized in that the system comprises at least one master unit and fl your slave units.
    [7]
    Method according to at least one of the preceding claims, characterized in that the communication is bidirectional.
    [8]
    System for carrying out a method according to at least one of the preceding claims, characterized in that the system comprises at least a first transmitter / receiver unit which constitutes a master (7) and at least one second transmitter / receiver unit which constitutes a slave unit (8) which communicate with each other via the first electrical conductor and the second electrical conductor
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    同族专利:
    公开号 | 公开日
    WO2014193286A1|2014-12-04|
    SE1300392A1|2014-11-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2148643B|1983-11-07|1988-03-16|Emlux Ltd|Filtering electrical signals|
    US5694108A|1996-05-01|1997-12-02|Abb Power T&D Company Inc.|Apparatus and methods for power network coupling|
    US5933073A|1997-07-07|1999-08-03|Abb Power T&D Company Inc.|Apparatus and methods for power network coupling|
    DE10019322C2|2000-04-19|2003-06-18|Rundfunkschutzrechte Ev|Device for conditioning the electrical building installation for fast data transmission|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1300392A|SE1300392A1|2013-05-29|2013-05-29|Method and system for transmission of data via electricity grids|SE1300392A| SE1300392A1|2013-05-29|2013-05-29|Method and system for transmission of data via electricity grids|
    PCT/SE2014/000071| WO2014193286A1|2013-05-29|2014-05-28|Methods and system for data transmission via electricity networks|
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