CN103414961A - Building talkback terminal with two nonpolar lines - Google Patents
Building talkback terminal with two nonpolar lines Download PDFInfo
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- CN103414961A CN103414961A CN2013103784980A CN201310378498A CN103414961A CN 103414961 A CN103414961 A CN 103414961A CN 2013103784980 A CN2013103784980 A CN 2013103784980A CN 201310378498 A CN201310378498 A CN 201310378498A CN 103414961 A CN103414961 A CN 103414961A
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Abstract
The invention discloses a building talkback terminal with two nonpolar lines and relates to the field of building talkback systems. The building talkback 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 coming from the two-line interface into 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 into an Ethernet data packet after encoding and send the Ethernet data packet to the HomePlug chip, then, the HomePlug chip transmits the data packet to another terminal through the two-line interface. According to the building talkback terminal with the two nonpolar lines, the two nonpolar lines are applied to the terminal, so that wiring can be conducted optionally; the bus-organized structure is applied, so that wire arrangement is reduced.
Description
Technical field
The present invention relates to residence intercom system field, building, relate 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, adopt the building residence intercommunication terminal of 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 again after being encoded to digital signal, netting twine must be by EIA/TIA568A or 568B standard routing, and mistake causes terminal normally to use by meeting;
3, adopt the building residence intercommunication terminal of PSTN technical transmission analog signal, the voice signal that intercommunication needs transmits by analog form, realizes the conversion of 2 lines-4 line at terminal inner.Two lines are nonpolarity, arbitrarily connection.But can't transmission video signal, and system cannot adopt bus structures, the cable wiring manufacture complexity;
4, adopt the building residence intercommunication terminal of modulation technique transmission of analogue signal, adopt Sanyo's chip, the signals such as voice, video are modulated on internal power cord, in the terminal inner demodulation out.Internal power cord two lines are nonpolarity, arbitrarily connection.Due to transfer impedance, substantially be only suitable for the pattern of 1 pair 1, can't be applicable to the interconnected situation of a plurality of terminals.
Summary of the invention
The present invention is directed in prior art building residence intercommunication terminal voice, vision signal will adopt the situation such as independent transmission line and provide a kind of the employings two non-polar buildings of line residence intercommunication terminals, two lines and nonpolarity of this terminal use, thereby wiring arbitrarily; Adopt bus-organization, thereby reduce wiring.
Technical scheme of the present invention 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 will be converted to from the packets of audio data of two line interfaces the Ethernet data bag, and CPU and audio interface are reduced to audio signal by this decoded packet data; Described CPU and audio interface by audio signal by the coding after be converted to the Ethernet data bag, send to the HomePlug chip, the HomePlug chip again by two line interfaces by data packet transmission to other-end.
Above-mentioned HomePlug chip provides the MII interface, be used to 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 the MII interface is arranged.
Above-mentioned terminal also comprises video interface, and video interface and CPU interconnect.
Above-mentioned HomePlug chip will be converted to from the video data of two line interfaces the Ethernet data bag, 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 the coding after be converted to the Ethernet data bag, send to the HomePlug chip, the 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 CPU is electrically connected to internal electric source.
Above-mentioned HomePlug chip is electrically connected to internal electric source.
Above-mentioned two line interfaces are electrically connected to internal electric source, and the terminal power supply is provided by two line interfaces.
Above-mentioned internal electric source is electrically connected to external power source, and the terminal power supply is provided by external power source.
The invention has the beneficial effects as follows: the employing of the present invention 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.
The accompanying drawing explanation
Fig. 1 is that the present invention adopts the two non-polar building of line residence intercommunication terminal modular structure schematic diagrames;
Fig. 2 is that the present invention 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 embodiment of the present invention 1;
Fig. 4 is the MII phy interface circuit diagram of BCM60321 in the embodiment of the present invention 1;
Fig. 5 is the two line interface circuit diagrams of BCM60321 in the embodiment of the present invention 1;
Fig. 6 is the MAC MII interface circuit figure of XTM8130 in the embodiment of the present invention 1.
Embodiment
For better explanation the present invention, now reach in conjunction with the embodiments accompanying drawing and be further described.
Embodiment 1:
As depicted in figs. 1 and 2, CPU1 selects XTM8130, and HomePlug chip 2 is selected BCM60321.
BCM60321 is based on the Multi-PHY switch chip of HomePlug technology, and compatible HomePlug AV V1.1, comprise PLC MAC and MII, RMII fastethernet interface; The HomePlugAV AFE (analog front end) that BCM60321 is built-in, after filtering, isolation, coupling, can get on by the power line that two line interfaces 7 transfer signals to two lines; 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, exchanges 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, comprises encoding and decoding, LCD demonstration and the Ethernet MAC etc. of audio frequency.
The MII interface 3 that XTM8130Ethernet MAC is external, be connected to the MII interface 3 of BCM60321, receives, sends data by MII interface 3; The MAC MII interface 3 of XTM8130 as shown in Figure 6.
Embodiment 2:
Contain Ethernet MAC, have the CPU of MII or RMII interface.
1.MII or RMII is operated in the MAC pattern
(1) HomePlug chip 2 is operated in the PHY pattern, and similar fashion as described in Example 1;
(2) HomePlug chip 2 is operated in the MAC pattern, increases separately PHY, uses PHY to the PHY work pattern;
(3) HomePlug chip 2 is operated in the MAC pattern, increases separately PHY and network transformer.
2.MII or RMII is operated in the PHY pattern
HomePlug chip 2 is operated in the MAC pattern, and as described in Example 1, the MII interface modes of HomePlug chip and CPU, catch up with and state 1 (1) on the contrary similar fashion.
Embodiment 3:
The CPU that contains Ethernet MAC, built-in Ethernet PHY.
(1) HomePlug chip 2 is operated in the MAC pattern, and HomePlug chip 2 increases PHY, uses PHY to the PHY work pattern;
(2) HomePlug chip 2 is operated in the MAC pattern, increases separately PHY and network transformer.
Adopt the two non-polar building of the line residence intercommunication terminals of above-described embodiment, can reduce wiring, only need two lines to communicate by letter, save 6 lines than the ethernet communication with eight core netting twines; 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, the 200M bandwidth arranged, 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 is adopted 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 will be converted to from the packets of audio data of two line interfaces the Ethernet data bag, and CPU and audio interface are reduced to audio signal by this decoded packet data; Described CPU and audio interface by audio signal by the coding after be converted to the Ethernet data bag, send to the HomePlug chip, the HomePlug chip again by two line interfaces by data packet transmission to other-end.
2. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described HomePlug chip provides the MII interface, be used to connecting Ethernet.
3. according to claim 1 and the 2 described employing two non-polar building of line residence intercommunication terminals, it 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 the MII interface is arranged.
4. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described terminal also comprises video interface, video interface and CPU interconnect.
5. according to claim 1 and the 4 described employing two non-polar building of line residence intercommunication terminals, it is characterized in that: described HomePlug chip will be converted to from the video data of two line interfaces the Ethernet data bag, 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 the coding after be converted to the Ethernet data bag, send to the HomePlug chip, the HomePlug chip again by data packet transmission to other-end.
6. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described terminal also comprises man-machine interface, described man-machine interface and CPU interconnect.
7. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described CPU is electrically connected to internal electric source.
8. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described HomePlug chip is electrically connected to internal electric source.
9. the employing according to claim 1 two non-polar buildings of line residence intercommunication terminals, it is characterized in that: described two line interfaces are electrically connected to internal electric source, and terminal is powered and is provided by two line interfaces.
10. according to claim 1, the 7 and 8 described employing two non-polar building of line residence intercommunication terminals, it is characterized in that: described internal electric source is electrically connected to external power source, and the terminal power supply is provided by external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103784980A CN103414961A (en) | 2013-08-16 | 2013-08-16 | Building talkback terminal with two nonpolar lines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103784980A CN103414961A (en) | 2013-08-16 | 2013-08-16 | Building talkback terminal with two nonpolar lines |
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| CN103414961A true CN103414961A (en) | 2013-11-27 |
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| CN2013103784980A Pending CN103414961A (en) | 2013-08-16 | 2013-08-16 | Building talkback terminal with two nonpolar lines |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100260247A1 (en) * | 2009-04-14 | 2010-10-14 | David Albiston | Digital intercom network over dc-powered microphone cable |
| CN102186053A (en) * | 2011-03-15 | 2011-09-14 | 崔莉莉 | User programmable building talk-back system |
| CN203504705U (en) * | 2013-08-16 | 2014-03-26 | 厦门兴联科技有限公司 | Building intercom terminal with two nonpolar lines |
-
2013
- 2013-08-16 CN CN2013103784980A patent/CN103414961A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100260247A1 (en) * | 2009-04-14 | 2010-10-14 | David Albiston | Digital intercom network over dc-powered microphone cable |
| CN102186053A (en) * | 2011-03-15 | 2011-09-14 | 崔莉莉 | User programmable building talk-back system |
| CN203504705U (en) * | 2013-08-16 | 2014-03-26 | 厦门兴联科技有限公司 | Building intercom terminal with two nonpolar lines |
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Application publication date: 20131127 |