CN203504705U - Building intercom terminal with two nonpolar lines - Google Patents
Building intercom terminal with two nonpolar lines Download PDFInfo
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- CN203504705U CN203504705U CN201320523390.1U CN201320523390U CN203504705U CN 203504705 U CN203504705 U CN 203504705U CN 201320523390 U CN201320523390 U CN 201320523390U CN 203504705 U CN203504705 U CN 203504705U
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Abstract
The utility model discloses a building intercom terminal with two nonpolar lines, and relates to the field of building intercom systems. The building intercom terminal with the two nonpolar lines comprises a CPU, an audio interface, a HomePlug chip and a two-line interface, wherein the audio interface and the HomePlug chip are respectively and mutually connected with the CPU, the HomePlug chip converts an audio data packet from the two-line interface to an Ethernet data packet, and the CPU and the audio interface decode and restore the data packet so that an audio signal can be formed, the CPU and the audio interface convert the audio signal to an Ethernet data packet after encoding and send the Ethernet data packet to the HomePlug chip, and the HomePlug chip then transmits the data packet to other terminals through the two-line interface. According to the building intercom terminal with the two nonpolar lines, the two nonpolar lines are employed by the terminal so that wiring can be conducted optionally; and a bus type structure is adopted so that the wire arrangement is reduced.
Description
Technical field
The utility model relates to residence intercom system field, building, relates in particular to a kind of employing two non-polar building of line residence intercommunication terminals.
Background technology
The building residence intercommunication terminal of prior art has the multiple-way system of employing, netting twine, PSTN technology and modulation technique.
1, the building residence intercommunication terminal that adopts multiple-way system, the signals such as the voice that intercommunication needs, video transmit by analog form, and voice and video etc. all adopt independent transmission line, and misconnection can cause terminal normally to use;
2, adopt the building residence intercommunication terminal of network cable transmission digital signal, the signals such as the voice that intercommunication needs, video pass through Internet Transmission after being encoded to digital signal again, netting twine must be by EIA/TIA568A or 568B standard routing, and mistake causes terminal normally to use by meeting;
3, the building residence intercommunication terminal that adopts PSTN technical transmission analog signal, the voice signal that intercommunication needs transmits by analog form, at terminal inner, realizes 2 line-4 line conversions.Two lines are nonpolarity, arbitrarily connection.But cannot transmission video signal, and system cannot adopt bus structures, and cable wiring manufacture is complicated;
4, the building residence intercommunication terminal that adopts modulation technique transmission of analogue signal, adopts Sanyo's chip, the signals such as voice, video is modulated on internal power cord, in terminal inner demodulation out.Internal power cord two lines are nonpolarity, arbitrarily connection.Due to transfer impedance, be substantially only suitable for the pattern of 1 pair 1, cannot be applicable to the interconnected situation of a plurality of terminals.
Utility model content
The utility model will adopt the situations such as independent transmission line and provide a kind of employing two non-polar building of line residence intercommunication terminals, this terminal to use two lines and nonpolarity for building residence intercommunication terminal voice, vision signal in prior art, thus wiring arbitrarily; Adopt bus-organization, thereby reduce wiring.
The technical solution of the utility model is as follows:
A kind of employing two non-polar building of line residence intercommunication terminals, this terminal comprises CPU, audio interface, HomePlug chip and two line interfaces, described audio interface and HomePlug chip interconnect with CPU respectively, described HomePlug chip is converted to Ethernet data bag by the packets of audio data from two line interfaces, and CPU and audio interface are reduced to audio signal by this decoded packet data; Described CPU and audio interface by audio signal by coding after be converted to Ethernet data bag, send to HomePlug chip, HomePlug chip again by two line interfaces by data packet transmission to other-end.
Above-mentioned HomePlug chip provides MII interface, for connecting Ethernet.
Above-mentioned HomePlug chip can be operated in MAC and PHY pattern, the CPU that is respectively used to connect ethernet PHY He has MII interface.
Above-mentioned terminal also comprises video interface, and video interface and CPU interconnect.
Above-mentioned HomePlug chip is converted to Ethernet data bag by the video data from two line interfaces, and CPU and video interface are reduced to vision signal by this decoded packet data again; Described CPU and video interface by vision signal by coding after be converted to Ethernet data bag, send to HomePlug chip, HomePlug chip again by data packet transmission to other-end.
Above-mentioned terminal also comprises man-machine interface, and described man-machine interface and CPU interconnect.
Above-mentioned terminal also comprises internal electric source, and described internal electric source is electrically connected to CPU.
Above-mentioned HomePlug chip is electrically connected to internal electric source.
Above-mentioned two line interfaces are electrically connected to internal electric source, and terminal power supply is provided by two line interfaces.
Above-mentioned internal electric source is electrically connected to external power source, and terminal power supply is provided by external power source.
The beneficial effects of the utility model are: the employing of the present utility model two non-polar buildings of line residence intercommunication terminals solve the problem that wiring complexity in installations can not wrong, use two lines and nonpolarity, thus wiring arbitrarily; Between terminal, can directly and connect, adopt bus-organization, thereby reduce wiring; Can select by two-wire power supply, wiring more than avoiding; Can realize interconnected between a plurality of terminals.
Accompanying drawing explanation
Fig. 1 is that the utility model adopts the two non-polar building of line residence intercommunication terminal modular structure schematic diagrames;
Fig. 2 is that the utility model adopts the another kind of supply power mode structural representation of the two non-polar building of line residence intercommunication terminal modules;
Fig. 3 is the PHY mode circuit figure of BCM60321 in the utility model embodiment 1;
Fig. 4 is the MII phy interface circuit diagram of BCM60321 in the utility model embodiment 1;
Fig. 5 is the two line interface circuit diagrams of BCM60321 in the utility model embodiment 1;
Fig. 6 is the MAC MII interface circuit figure of XTM8130 in the utility model embodiment 1.
Embodiment
For better explanation the utility model, existing in conjunction with the embodiments and accompanying drawing be further described.
Embodiment 1:
As depicted in figs. 1 and 2, CPU1 selects XTM8130, and HomePlug chip 2 is selected BCM60321.
BCM60321 is the Multi-PHY switch chip based on HomePlug technology, and compatible HomePlug AV V1.1, comprises PLC MAC and MII, RMII fastethernet interface; The HomePlug AV AFE (analog front end) that BCM60321 is built-in, after filtering, isolation, coupling, the power line that can transfer signals to two lines by two line interfaces 7 gets on; Also can the signal on the power line of two lines be received through isolation, coupling and filtering by two line interfaces 7 simultaneously.The data of transmitting-receiving, can pass through inner switching engine, exchange to MII, RMII interface.
The MII of BCM60321, RMII can work under the pattern of MAC or PHY.
In the present embodiment, be operated in MII PHY pattern; The PHY pattern of BCM60321 as shown in Figure 3; The MII phy interface of BCM60321 as shown in Figure 4; Two line interfaces 7 of BCM60321 as shown in Figure 5.
XTM8130 is an ASIC CPU, the encoding and decoding that comprise audio frequency, LCD demonstration and Ethernet MAC etc.
The MII interface 3 that XTM8130Ethernet MAC is external, is connected to the MII interface 3 of BCM60321, by MII interface 3, receives, sends data; The MAC MII interface 3 of XTM8130 as shown in Figure 6.
Embodiment 2:
Containing Ethernet MAC, there is the CPU of MII or RMII interface.
1.MII or RMII are operated in MAC pattern
(1) HomePlug chip 2 is operated in PHY pattern, and similar fashion as described in Example 1;
(2) HomePlug chip 2 is operated in MAC pattern, increases separately PHY, uses PHY to PHY work pattern;
(3) HomePlug chip 2 is operated in MAC pattern, increases separately PHY and network transformer.
2.MII or RMII are operated in PHY pattern
HomePlug chip 2 is operated in MAC pattern, and as described in Example 1, the MII interface modes of HomePlug chip and CPU, catches up with and state 1 (1) on the contrary similar fashion.
Embodiment 3:
CPU containing Ethernet MAC, built-in Ethernet PHY.
(1) HomePlug chip 2 is operated in MAC pattern, and HomePlug chip 2 increases PHY, uses PHY to PHY work pattern;
(2) HomePlug chip 2 is operated in MAC pattern, increases separately PHY and network transformer.
The two non-polar building of the line residence intercommunication terminals that adopt above-described embodiment, can reduce wiring, only need two lines to communicate by letter, and than the ethernet communication with eight core netting twines, save 6 lines; Wiring is simple, need not distinguish polarity and color etc., adopts AC coupled and transformer isolation, need not distinguish polarity; Be with roomyly, as BCM60321 has 200M bandwidth, can transmit compression multichannel voice frequency and video data; Systems connection is simple in structure, adopts AC coupled and transformer isolation, and two lines can directly and connect.
Claims (10)
1. one kind adopts the two non-polar building of line residence intercommunication terminals, it is characterized in that: this terminal comprises CPU, audio interface, HomePlug chip and two line interfaces, described audio interface and HomePlug chip interconnect with CPU respectively, described HomePlug chip is converted to Ethernet data bag by the packets of audio data from two line interfaces, and CPU and audio interface are reduced to audio signal by this decoded packet data; Described CPU and audio interface by audio signal by coding after be converted to Ethernet data bag, send to HomePlug chip, HomePlug chip again by two line interfaces by data packet transmission to other-end.
2. the employing two non-polar building of line residence intercommunication terminals according to claim 1, is characterized in that: described HomePlug chip provides MII interface, for connecting Ethernet.
3. the employing two non-polar building of line residence intercommunication terminals according to claim 1 and 2, is characterized in that: described HomePlug chip can be operated in MAC and PHY pattern the CPU that is respectively used to connect ethernet PHY He has MII interface.
4. the employing two non-polar building of line residence intercommunication terminals according to claim 1, is characterized in that: described terminal also comprises video interface, and video interface and CPU interconnect.
5. according to the employing two non-polar building of the line residence intercommunication terminals described in claim 1 or 4, it is characterized in that: described HomePlug chip is converted to Ethernet data bag by the video data from two line interfaces, and CPU and video interface are reduced to vision signal by this decoded packet data again; Described CPU and video interface by vision signal by coding after be converted to Ethernet data bag, send to HomePlug chip, HomePlug chip again by data packet transmission to other-end.
6. the employing two non-polar building of line residence intercommunication terminals according to claim 1, is characterized in that: described terminal also comprises man-machine interface, and described man-machine interface and CPU interconnect.
7. the employing two non-polar building of line residence intercommunication terminals according to claim 1, is characterized in that: described terminal also comprises internal electric source, and described internal electric source is electrically connected to CPU.
8. according to the employing two non-polar building of the line residence intercommunication terminals described in claim 1 or 7, it is characterized in that: described HomePlug chip is electrically connected to internal electric source.
9. according to the employing two non-polar building of the line residence intercommunication terminals described in claim 1 or 7, it is characterized in that: described two line interfaces are electrically connected to internal electric source, terminal power supply is provided by two line interfaces.
10. the employing two non-polar building of line residence intercommunication terminals according to claim 7, is characterized in that: described internal electric source is electrically connected to external power source, and terminal power supply is provided by external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523390.1U CN203504705U (en) | 2013-08-16 | 2013-08-16 | Building intercom terminal with two nonpolar lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320523390.1U CN203504705U (en) | 2013-08-16 | 2013-08-16 | Building intercom terminal with two nonpolar lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504705U true CN203504705U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320523390.1U Expired - Fee Related CN203504705U (en) | 2013-08-16 | 2013-08-16 | Building intercom terminal with two nonpolar lines |
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| CN (1) | CN203504705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414961A (en) * | 2013-08-16 | 2013-11-27 | 厦门兴联科技有限公司 | Building talkback terminal with two nonpolar lines |
-
2013
- 2013-08-16 CN CN201320523390.1U patent/CN203504705U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414961A (en) * | 2013-08-16 | 2013-11-27 | 厦门兴联科技有限公司 | Building talkback terminal with two nonpolar lines |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180816 |