CN201008155Y - A power line communication adapter and power line communication system - Google Patents

Abstract

The embodiment of the utility model discloses a power line communication adapter, which is applied in the field of power line communication. The power line communication adapter includes a first power supply unit electrically connected to a power supply device for providing power to the power line communication adapter; a second power supply unit electrically connected to the first power supply unit for communication equipment power supply; an interface unit, used for communicating with the communication device; an information processing unit, used for connecting with the first power supply unit and the interface unit, and processing information from the first power supply unit and the interface unit information. The embodiment of the utility model also discloses a power line communication system. The power line communication adapter provided by the embodiment of the utility model reduces the number of sockets occupied by the power line communication adapter for communication and indoor cables, making the room neat and beautiful.

Description

A power line communication adapter and power line communication system

technical field

The utility model relates to an adapter, in particular to a power line communication adapter and a power line communication system.

Background technique

Power Line Communication (PLC) is to use the existing almost ubiquitous power line as a communication carrier, and realize data, voice, video and other multi-service bearing on the existing power line without rewiring. It is to realize the integration of four networks. This technology is to load the high frequency carrying information on the current, and then use the power line to transmit, and the modem receiving the information separates the high frequency from the current, and transmits it to the computer or telephone to realize the information transmission. End users only need to plug in the power plug to realize Internet input, TV channel receiving programs, making calls or videophones. At present, power line communication is mainly used as an access technology to provide broadband network "last mile" solutions, and is applicable to residential areas, schools, hotels, office buildings and other fields.

Please refer to FIG. 1 , which is a schematic diagram of power line communication used in home networking. Among them, the network terminal can be ADSL MODEM or ADSL gateway, CABLE MODEM or CABLE gateway, GPON terminal or EPON terminal, etc., the uplink is connected to the operator's network through DSL/CABLE/xPON, etc., and the downlink is an Ethernet port. Such as set-top box, videophone or PC connection. In Figure 1, the set-top box and the videophone are directly connected to the network terminal through an Ethernet cable; the PC and the network terminal are not directly connected through an Ethernet cable, but are connected through a power line communication (PLC) adapter; the PLC adapter modulates the communication information to and Ethernet cable for PC connection. This situation applies to the network terminal in the living room and the PC in the bedroom. The Ethernet cable will affect the aesthetics of the room, so the method of using the PLC adapter is not only convenient but also does not affect the aesthetics of the room.

As shown in Figure 2, the existing solution is that the PLC adapter occupies one power socket, and the communication equipment (such as PC, set-top box, etc.) occupies another power socket for power supply. Such a communication device uses a PLC adapter to communicate, and two sockets are occupied, one for powering the communication device and the other for communication. In this way, when the indoor sockets are not enough, the equipment cannot be used or additional sockets need to be installed, which increases the installation cost; in addition, the increase of cables makes the indoor look messy, thus affecting the indoor appearance.

Utility model content

In view of this, it is necessary to provide a power line communication adapter.

A power line communication adapter, characterized in that it comprises:

The first power supply unit is electrically connected with the power supply device, and is used to provide power for the power line communication adapter;

a second power supply unit, electrically connected to the first power supply unit, for supplying power to the communication device;

an interface unit, configured to communicate with the communication device;

An information processing unit, configured to be connected to the first power supply unit and the interface unit, and process information from the first power supply unit and the interface unit.

The embodiment of the utility model also provides a power line communication system, the system is composed of a communication device and a power line communication adapter, and is characterized in that,

The power line communication adapter obtains power supply and communication information through the first power line;

The communication device obtains power supply through a second power line branch drawn from the first power line;

The power line communication adapter communicates with the communication device through an Ethernet port, a WiFi interface or a Bluetooth interface.

By providing a second power supply unit on the power line communication adapter, the second power supply unit is used for powering communication equipment, thereby reducing the number of sockets occupied by the power line communication adapter for communication, reducing indoor cables, and making the room clean and beautiful.

Description of drawings

Figure 1 is a schematic diagram of PLC adapters applied to home networking;

Fig. 2 is a schematic diagram of the connection between the power line communication adapter and the communication equipment in the prior art;

Fig. 3 is a structural diagram of the power line communication adapter provided by the embodiment of the present invention;

Fig. 4 is a schematic diagram of the internal connection relationship of the power line in the power line communication adapter provided by the embodiment of the present invention;

Fig. 5 is a structural diagram of a power line communication system provided by an embodiment of the present invention;

Fig. 6 is a structural diagram of a power line communication system provided by an embodiment of the present invention.

Detailed ways

The embodiment of the utility model provides a power line communication adapter (PLC adapter). The PLC adapter modulates the communication signal to the power line through high frequency or demodulates the high frequency signal on the power line. As shown in Figure 3, the PLC adapter includes:

The first power supply unit is electrically connected with the power supply device, and is used to provide power for the power line communication adapter;

a second power supply unit, electrically connected to the first power supply unit, for supplying power to the communication device;

an interface unit, configured to communicate with the communication device;

An information processing unit, configured to be connected to the first power supply unit and the interface unit, and process information from the first power supply unit and the interface unit.

Embodiment one

In this embodiment, the first power supply unit of the PLC adapter includes a power cord a and a power plug, and the second power supply unit includes a power cord b and a power plug. The power line a is used to supply power to the PLC adapter equipment and transmit communication information (the communication information includes but not limited to audio information, video information, data, etc.), the power line is connected to the external power socket through the power plug; the power line b is used For the power supply of the communication equipment, the communication equipment is an ordinary communication device, such as a videophone, a computer or an IPTV set-top box, etc., and the power cord is connected to a power socket on the communication equipment through a power plug.

The interface unit may be an Ethernet interface, and is used for communication connection with a communication device having an Ethernet interface. The interface unit can also be a WiFi interface or a Bluetooth interface, and is used for communicating with a communication device having a WiFi interface or a Bluetooth interface. Of course, the interface unit is not limited to the above-mentioned communication interface, and may also be other communication interfaces.

The information processing unit is used to connect with the first power supply unit and the interface unit, and process information from the first power supply unit and the interface unit. The information processing unit includes a modulation unit and a demodulation unit. The modulation unit is used to modulate the communication information from the interface unit onto the power line through high frequency, and the demodulation unit is used to demodulate the high frequency signal in the information from the first power supply unit.

The connection relationship between power line b and power line a is shown in Figure 4. The power line is generally composed of a live wire, a ground wire and a neutral wire, and the ground wire is optional. If the power line a and the power line b are composed of live wire, ground wire and neutral wire, then the live wire, ground wire and neutral wire of power line a and power line b are connected respectively. If the power line a and the power line b are both composed of live wires and neutral wires, then the live wires and neutral lines of the power line a and power line b are connected respectively.

The connection point of the power line a and the power line b may be on the power line a, or on the extension line of the power line a.

Embodiment two

The difference between this embodiment and Embodiment 1 is that the power cord a and the power plug used to provide power to the PLC adapter are replaced by a power plug, so that the PLC adapter can be directly plugged into an external power socket. The power plug is electrically connected to the power line b.

Embodiment three

The difference between this embodiment and Embodiment 1 is that the power cord b and the power plug in the second power supply unit used to supply power to the communication device are replaced by a power socket. In this way, the power plug drawn from the communication device can be plugged into the power socket of the second power supply unit to provide working power for the communication device.

Wherein, the power socket may be a two-tap power socket or a three-tap power socket.

Embodiment Four

The difference between this embodiment and the third embodiment is that the power cord a and the power plug used to provide power to the PLC adapter are replaced by a power socket. In this way, the PLC adapter can be directly plugged into the external power socket.

Wherein, the power socket may be a two-tap power socket or a three-tap power socket.

In Embodiment 1 to Embodiment 4, the power plug or power socket of the PLC adapter may be, but not limited to, three-tap or two-tap.

In other embodiments, the second power supply unit of the PLC adapter can also supply power for at least two communication devices. Wherein, the second power supply unit of the PLC adapter includes at least two power sockets, and may also include at least two power cords and power plugs.

Embodiment five

As shown in FIG. 5 , this embodiment provides a power line communication system, which is composed of a communication device and a PLC adapter.

The communication device is an ordinary communication device, such as a videophone, a computer, or an IPTV set-top box. Wherein, the PLC adapter communicates with the Ethernet port of the communication device through an Ethernet cable.

The PLC adapter is connected to the power socket c through the power cord a and the power plug, and the power cord a is used to supply power to the PLC adapter; the PLC adapter demodulates the communication information transmitted on the power cord a to the Ethernet line as shown in Figure 5 . The communication information includes, but is not limited to, audio information, video information, data, and the like.

Wherein, the power cord a and the power plug can be replaced by a power plug.

The power cord b of the PLC adapter is connected to the power interface of the communication device through a power plug, and the power cord b is used to supply power to the communication device.

Wherein, the power cord b and the power plug can also be replaced by a power socket.

Wherein, the PLC adapter is not limited to communicating with the communication device through its Ethernet interface, but also can communicate with a communication device with a WiFi card or a Bluetooth interface through a wireless interface such as WiFi or Bluetooth.

In the fifth embodiment, the power socket or the power plug of the PLC adapter can be three-tap or two-tap.

Embodiment six

As shown in FIG. 6 , this embodiment also provides another power line communication system, which is composed of a communication device and a PLC adapter.

The communication device is an ordinary communication device, such as a videophone, a computer, or an IPTV set-top box. Wherein, the PLC adapter communicates with the Ethernet port of the communication device through an Ethernet cable.

The PLC adapter is connected to the power socket 3 through the power cord 1 and the power plug, and the power cord 1 is used to supply power to the PLC adapter; the PLC adapter demodulates the communication information transmitted on the power cord 1 to the Ethernet line as shown in Figure 6 superior. The communication information includes, but is not limited to, audio information, video information, data, and the like.

A branch is drawn from the power line 1 of the PLC adapter, that is, the power line 2, and the power line 2 is connected to the power interface of the communication device through a power plug.

The power line is generally composed of a live wire, a ground wire and a neutral wire, and the ground wire is optional. If the power line is composed of live wire, ground wire and neutral wire, then the live wire, ground wire and neutral wire of power line 1 and power line 2 are connected respectively. If the power line is composed of live and neutral wires, the live and neutral lines of power line 1 and power line 2 are connected respectively.

The PLC adapter can also be a wireless interface such as WiFi or Bluetooth, so that it can communicate with a communication device with a WiFi card or a Bluetooth interface respectively. Of course, the interface between the PLC adapter and the communication device is not limited to the above-mentioned interface.

In the above embodiments, both the power socket and the power plug are single-phase.

The PLC adapter provided by the above embodiments can reduce the number of sockets occupied by the PLC adapter for communication, reduce indoor cables, and make the room look tidy.

In summary, the above are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (9)

1. an adapter for power line communications is characterized in that, comprising:

First power supply unit electrically connects with power supply device, is used to described adapter for power line communications that power supply is provided;

Second power supply unit electrically connects with described first power supply unit, is used to the communication equipment power supply;

Interface unit is used for being connected with described communication apparatus communication;

Information process unit is used for being connected with described interface unit with described first power supply unit, handles the information from described first power supply unit and described interface unit.

2. adapter for power line communications as claimed in claim 1 is characterized in that, described second power supply unit comprises supply socket.

3. adapter for power line communications as claimed in claim 2 is characterized in that, described supply socket is the supply socket of two taps or the supply socket of three taps.

4. adapter for power line communications as claimed in claim 1 is characterized in that, described second power supply unit comprises power line and attaching plug.

5. adapter for power line communications as claimed in claim 1 is characterized in that, described first power supply unit comprises power line and attaching plug.

6. adapter for power line communications as claimed in claim 1 is characterized in that, described first power supply unit comprises attaching plug.

7. adapter for power line communications as claimed in claim 1 is characterized in that, described information process unit comprises:

Demodulating unit is used for the information of demodulation from described first power supply unit;

Modulating unit is used to modulate the information from described interface unit.

8. adapter for power line communications as claimed in claim 1 is characterized in that described interface unit comprises Ethernet interface, or the WiFi interface, or blue tooth interface.

9. electric line communication system, described system is made up of communication equipment, adapter for power line communications, it is characterized in that,

Described adapter for power line communications obtains the power supply and the communication information by first power line;

Described communication equipment obtains power supply by the second source line branch of drawing on first power line;

Described adapter for power line communications is passed through Ethernet interface or WiFi interface or blue tooth interface and is connected with described communication apparatus communication.

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