• 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:
    power line communication apparatus and system, and, method for operating a power line communication apparatus, a power line communication apparatus (200) includes a mains power connector unit (210) with three or more first connectors (211) connectable to a power distribution network. a mains filter (220) provides a filter path between each of its first ports (221) and a corresponding one of the second ports (222), where each first port (221) is connected to one of the first connectors (211). each second port (222) is connected to one of the three or more second connectors (282) of an ac power socket (280). the power line communication unit (250) is connected to each of the first ports (221) and transmits and / or receives data according to a transmission method using more than one transmission channel between two devices connected via the power supply distribution network. the mains filter (220) improves the quality of plc transmission by suppressing disturbances generated by the devices and reduces scattered plc radiation.
    公开号:BR102012002129B1
    申请号:R102012002129-3
    申请日:2012-01-30
    公开日:2020-09-01
    发明作者:Andress Schwager
    申请人:Sony Corporation；
    IPC主号:
    专利说明:

    [001] Modalities of the invention refer to a power line communication apparatus comprising an AC (alternating current) power socket and a method of operating a power line communication apparatus.
    [002] Some communication systems such as PLC (communications via power line) use power distribution systems for data communication, in which a modulated carrier is superimposed on the alternating current of 50 or 60 Hz of the power lines. For example, a power cable containing two or more electrical conductors is used to transmit AC (alternating current) electrical energy, where the power cable can be installed as permanent wiring inside buildings or can be buried in the ground. Power line communication modems can be connected to any output of the power distribution system.
    [003] The object of the invention is to increase the ease of use of a communication system via the power line. The object is achieved with the issue of independent claims. Additional modalities are defined in the dependent claims, respectively. Details and advantages of the invention will become more apparent from the following description of the modalities in connection with the accompanying drawings. Resources from the various modalities can be combined unless they exclude each other.
    [004] Figure 1 is a schematic block diagram of a power line communication system comprising a power line communication apparatus according to an embodiment of the invention.
    [005] Figure 2 is a schematic block diagram showing details of a power line communication apparatus with a mains filter according to another embodiment of the invention.
    [006] Figure 3A is a simplified perspective view of a power line communication device according to a modality related to a wall-mounted outlet.
    [007] Figure 3B is a simplified side view of a power line communication device including a mains power connector according to a modality.
    [008] Figure 4 is a simplified flow chart of a method of operating a power line communication device according to an additional modality.
    [009] Figure 1 refers to a communications system 100 using a power distribution system 190 for data communication. For example, communications system 100 can be a power line communications system (PLC), network communications, line telecommunications (PLT), broadband power line (BPL) or network operation power line or power band (PLN) using a modulated carrier superimposed on the alternating current of 50 or 60 Hz of the power lines respectively.
    [0010] Communications system 100 is operable as a MIMO (multiple input - multiple outputs) or MISO (multiple inputs and single output) system with at least one first and second modem device 110a, 110b. The first modem device 110a outputs data signals on two or more first interface ports 101a. The second modem device 110b retrieves the data signals from the received signals on three or more second interface ports 101b. The power distribution system 190 forms the transmission channel connecting the first and second modem devices 110a, 110b. The power distribution system 190 represents a multiple wire connection. For example, the power distribution system 190 may include power cables comprising two or more electrical conductors used to transmit AC (mains) electrical power and to provide terrestrial connection, where power cables can be installed as permanent wiring inside buildings or can be buried in the ground.
    [0011] For example, the first modem device 110a can emit two differential transmission signals using the live or phase wires (L, P), the neutral wire (N), and the protected ground reference (PE), in which the Differential transmission signals are modulated in a carrier superimposed on the AC frequency at the mains voltage. The second modem device 110b can receive three differential reception signals between the phase wire and the neutral wire, between the neutral wire and the protected earth wire, and the phase wire and the protected earth wire. According to another embodiment, the second modem device 110b can receive three differential reception signals and a common mode signal resulting from a current leakage current from the wiring as a fourth reception signal. The transmission signals on the transmission channel 190 interfere with each other through capacitive coupling between the wires such that the first and second modems can use multiple channel techniques such as beam formation to improve transmission as a whole.
    [0012] One of the first and second modem devices 110a, 110b is a power line communication device 200 as illustrated in Figure 2. The other modem device 110a, 110b can also be of the type of line communication device power 200, another standalone type of PLC modem or can be integrated into an electronic device for consumer applications, for example in a storage unit, a television set, an audio receiver receiver, a video recorder, or in sensor devices.
    [0013] As shown in figure 2, the power line communication apparatus 200 comprises power supply unit connector 210 with at least three first connectors 211. Each of the first connectors 211 is adapted to connect the apparatus communication of power line 200 to one of the Ll, L2, L3, N, PE wiring of a power distribution system. According to an embodiment, the first connectors 211 are terminals, for example clamp blocks or connectors on which the Ll, L2, L3, N, PE wiring can be attached. According to another embodiment, the mains power connector unit 210 is a mains power plug where at least the first connectors 211 assigned to the live and neutral connections are pins or claws. The mains power plug can be a standardized one, for example a mains power plug according to EEC standard 7/4, 7/5, 7/7, NEMA5-nn or SEV1011.
    [0014] The power line communication apparatus 200 also includes a mains filter 220 with at least three first ports 221 and a corresponding number of second ports 222. Each first port 221 is electrically connected to one of the first connectors 211. According to one embodiment, each first port 221 is directly connected with a corresponding first connector 211 in a low-resistance manner through wires, conductors, and / or clamps. The mains filter 220 comprises a low pass filter path between each first port 221 and a corresponding one of the second ports 222.
    [0015] An AC power socket (receptacle) 280 comprises at least three second connectors 282, where each second connector 282 is electrically connected to one of the second ports 222 of the mains filter 220. At least two of the second connectors 282 assigned to the live and neutral connections are female connectors. The AC 280 power socket can be standardized and can conform to any of the EEC standards 7/4, 7/5, 7/7, NEMA5-nn or SEV1011, as an example. In the event that the mains power connector unit 210 is a standardized mains power plug, the AC 280 power socket may conform to the same standard. A power strip or an electrical / electronic device can be plugged into the AC power socket to connect an electrical / electronic device to the mains power distribution system.
    [0016] A communication unit via power line 250 is electrically connected with each of the first connectors 211 and first ports 221, where the communication unit via power line 250 is configured to transmit and / or receive data according to a transmission method using more than one with a wire connection or transmission path between two devices connected via the power distribution wiring. The power line communication unit 250 includes a power line communication modem that can be configured as a receiving device, as a transmitting device or as a bidirectional two-way communication device incorporating the features of both, a receiving device and transmission. The power line communication modem can be a PLC modem, a power line communications modem, a PLT modem, a BPL modem, or a PLN modem or power band.
    [0017] The power line communication device 200 with integrated AC power socket 280 and power line filter 220 allows the user to easily install or connect a power line modem to any network outlet which is convenient to access it and without losing the output to connect electrical / electronic devices. The data signals go directly from the communication unit via the integrated power line 250 to the wall outlet and the power distribution wiring. Neither are they irradiated nor are they attenuated by the cable resistance of a multi-output power strip, which often has to be installed to provide a sufficient number of outputs for devices and modems.
    [0018] In addition, the mains filter 220 suppresses disturbances and noise from the devices connected to the AC 280 power socket. Since Devices connected to the filtered AC 280 power socket cannot cause asymmetry to the power network at the respective output, differential mode MIMO signals from the communication unit via power line 250 are not converted into common mode signals that can radiate from the power supply network. Then the system emits less scattered radiation.
    [0019] According to one embodiment, at least one of the first connectors 211 of the power supply unit connector 210 is a connection to the ground (grounded) frame and at least one of the second connectors 282 of the power supply socket AC 280 is a ground reference connection. The filter paths may differ in their effect on the assigned wired connection. According to one embodiment, each filter path provides interference suppression. For example, each filter path provides interference suppression to approximately the same degree.
    [0020] According to one embodiment, the mains filter 220 includes a low pass filter 224 that is effective in each of the at least three filter paths. Where one of the filter paths provides a connection to the ground reference, the low pass filter 224 is also effective on this filter path to approximately the same degree. For example, the low-pass filter 224 includes filter elements in each of the filter paths, including a filter path assigned to a connection to the ground reference, where corresponding filter elements from different filter paths have the same nominal values such that all at least three filter paths are configured in the same way. According to one embodiment, the low pass filter 224 attenuates signal frequencies above 1 MHz, for example in the range between 2 and 30 MHz of at least 3dB, for example 6dB, 10 dB or 20dB. According to a modality, the attenuation is at least 50dB. According to other modalities, the mains filter 220 attenuates another frequency range above a frequency greater than 2 MHz to match the specific frequency range of the communication unit via power line 250.
    [0021] The low pass filter 224 can contain filter elements in series 224a in each filter path. The filter elements in series 224a may differ from each other. According to one embodiment, the filter elements in series 224a in each filter path path may be elements that are approximately equivalent to each other with respect to the effect they have. For example, each 224a series filter element can be effective as a low pass filter that allows 50 Hz or 60 Hz AC frequency to pass and which blocks HF (high frequency) and VHF (very high frequency). The low pass filter 224 can provide the same degree of filtration and the same cutoff frequencies in each filter path. Each series filter element 224a can include one or more inductors, where corresponding inductors on different filter paths can have the same nominal values for inductance and resistance. The low-pass filter 224 may also comprise a number of capacitor units 224b, wherein each capacitor unit 224b is electrically arranged between each pair of filter paths. Each capacitor unit 224b can provide a parallel filter path with a cutoff frequency defining an effective pass band up to at least 50 Hz or 60 Hz and blocking HF and VHF. Each capacitor unit 224b can include one or more capacitors. According to one modality, at 1 MHz each filter path can provide an attenuation of at least 40 dB. Each capacitor unit 224b can be connected to a node between two identical inductors on the same filter path, respectively.
    [0022] According to one embodiment, the mains filter 220 may also include a common mode filter unit 228 to attenuate common mode signals. The common filter unit 228 may include a common mode inductor, a ferrite ring or bead. The common filter unit 228 is effective on each of the at least three filter paths in the same manner and to the same degree. For example, elements with the same nominal values for inductance, resistance and coupling values can be provided in each filter path such that all at least three filter paths are configured in the same way. Where one of the filter paths provides a connection to the ground reference, elements are also provided in this filter path.
    [0023] The power line communication apparatus 200 may have four first connectors 211 for two live wire connections LI, L2, a neutral wire connection N and a connection to the ground reference, or five connectors for three wire connections live Ll, L2, L3, a neutral wire connection N and a connection to the PE ground reference. According to one embodiment, the power output comprises three first connectors 211 for a live connection L, a neutral wire connection N and a connection to the PE ground reference.
    [0024] The power line communication apparatus 200 may further comprise a data output 292 connected to the communication unit via power line 250, wherein the communication unit via power line 250 emits data received via the connector unit power supply 210 at data output 292 and / or output data received via data output 292 at power supply connector unit 210. Data output 292 can be a standardized, for example according with USB, Ethernet, Firewire or any other wired communication standard.
    [0025] Alternatively or in addition, the power line communication apparatus 200 may comprise a wireless modem 294 connected to the communication unit via power line 250, wherein the communication unit via power line 250 issues data received via the mains power connector unit 210 via the wireless modem 294 and / or outputs data received via the wireless modem 294 via the mains power connector unit 210. The wireless modem can be a standardized and may conform to the IEEE 802.11 standard as an example.
    [0026] Figure 3A shows a Power Line Communication Device 200 on the wall or inside the wall mounted with an AC 280 power socket, which can be an CEE 7/7 socket, and a 292 data output, which it can be a modular female connector, like an 8P8C jack (socket). Terminals on the rear side oriented towards the wall provide for the power distribution wiring.
    [0027] Figure 3B shows a power line communication device 200 embedded with an AC power socket 280, a data output 292, and a mains power plug 210a, which can be an CEE plug 7 / 7, as an example.
    [0028] Figure 4 refers to a method for operating a power line communication device. AC electrical current is supplied to an electrical appliance connected to an AC power socket using at least three mains connections (402). The at least three mains connections can provide two live wire connections and a neutral wire connection. According to a modality one of the at least three power supply connections provides a connection to the ground reference. Noises and disturbances emitted by the electrical appliance at the mains connections are filtered through low pass using an effective mains filter at each of the at least three mains connections (404) in the same way. According to one embodiment, each low-pass filter path of the mains filter provides interference suppression. The mains filter has one side of the mains supply oriented to the mains supply and one side of the appliance oriented towards the AC power socket. The communication unit via the power line that is connected to the mains side of the mains filter is operated in a MIMO or MISO mode (406). The mains filter attenuates signal frequencies in the range used by the communication unit via the power line and can attenuate common mode signals.
    权利要求:
    Claims (16)
    [0001]
    1. A power line communication apparatus comprising: - a mains power connector unit (210) comprising at least three first connectors (211); - a mains filter (220) with at least three first ports (221), at least three second ports (222) and at least three filter paths, where each first port (221) is electrically connected to a of the first connectors (211) and each filter path is provided between one of the first and one of the second ports (221, 222), and characterized by the fact that the mains filter (220) comprises a low pass filter (224 ) with each filter path including at least one filter element in series (224a); - an AC power socket (280) comprising at least three second connectors (282), each second connector (282) being electrically connected to one of the second ports (222); - a power line communication unit (250) electrically connected to each of the first ports (221), where the power line communication unit (250) is configured to transmit and / or receive data according to a transmission method using more than one transmission channel between two devices connected via a power line wiring.
    [0002]
    2. Power line communication apparatus according to claim 1, characterized by the fact that - the mains power connector unit (210) is the mains power socket (210a).
    [0003]
    Power line communication apparatus according to either of claims 1 or 2, characterized by the fact that - one of the first connectors (211) and one of the second connectors (282) are suitable for connections to the ground reference.
    [0004]
    Power line communication apparatus according to any one of claims 1 to 3, characterized in that - the mains filter (220) comprises a low pass filter (224) effective in each of the hairs at least three filter paths in the same way such that all at least three filter paths are configured in the same way.
    [0005]
    Power line communication apparatus according to any one of claims 1 to 4, characterized in that - the low pass filter (224) is arranged to provide the same degree of interference suppression in each of the at least three filter paths.
    [0006]
    Power line communication apparatus according to any one of claims 1 to 5, characterized in that - the low-pass filter (224) comprises filter elements in series (224a) in each filter path, the elements series filter (224a) being inductors, where corresponding inductors in the filter paths have the same inductance and resistance.
    [0007]
    Power line communication apparatus according to any one of claims 1 to 6, characterized in that - the low-pass filter (224) comprises a capacitor unit (224b) between each pair of the at least three paths of the filter.
    [0008]
    Power line communication apparatus according to any one of claims 1 to 7, characterized in that - at 1 MHz each filter path provides the same attenuation of at least 50 dB.
    [0009]
    Power line communication apparatus according to any one of claims 1 to 8, characterized in that - the mains filter (220) comprises a common mode filter unit (228) effective in each one of at least three filter paths.
    [0010]
    Power line communication apparatus according to any one of claims 1 to 9, characterized in that - the main power connector unit (210) comprises no more than three first connectors (211).
    [0011]
    Power line communication device according to any one of claims 1 to 10, characterized in that it additionally comprises - a data output (292) connected to the power line communication unit (250), a power line unit communication via power line (250) configured to output data received via the mains power connector unit (210) at the data output (292) and / or to output data received via the data output (292) in the mains power connector unit (210).
    [0012]
    Power line communication device according to any one of claims 1 all, characterized in that it additionally comprises - a wireless modem (294) connected to the power line communication unit (250), a communication unit via power line (250) configured to output data received via the mains power connector unit (210) via the wireless modem (294) and / or to output data received via the wireless modem (294) in the mains power connector unit (210).
    [0013]
    13. Power line communication system characterized by the fact that it comprises the power line communication apparatus according to any one of claims 1 to 12.
    [0014]
    14. Method for operating a power line communication device, the method comprising - supplying AC electrical current to an electrical device connected to an AC power socket (280) using at least three mains connections, - filter noises and disturbances emitted by the electrical appliance in at least three mains connections with a mains filter (220) effective in each of the at least three mains connections, characterized by the fact that the filter mains power supply (220) having an electrical supply side oriented towards the mains supply and an appliance side oriented towards the AC power socket (280) and comprising a low pass filter (224) with each filter path including at least one filter element in series (224a); - operate, in a MIMO or MISO mode, the communication unit via the power line (250) connected to the mains filter (220) on the mains side.
    [0015]
    15. Method according to claim 14, characterized in that - the mains filter (220) is effective in each of the at least three mains connections in the same way.
    [0016]
    16. Method according to either of claims 14 or 15, characterized by the fact that - one of the connections of the mains supply provides a connection to the ground reference.
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    法律状态:
    2013-05-21| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-02-04| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-07-21| B09A| Decision: intention to grant|
    2020-09-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/01/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2020-09-24| B16C| Correction of notification of the grant|Free format text: REF. RPI 2591 DE 01/09/2020 QUANTO AO INVENTOR. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP11000956.0|2011-02-07|
    EP11000956|2011-02-07|
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