CN205105238U - Terminal of intelligence handling end mouth data - Google Patents
Terminal of intelligence handling end mouth data Download PDFInfo
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- CN205105238U CN205105238U CN201520915168.5U CN201520915168U CN205105238U CN 205105238 U CN205105238 U CN 205105238U CN 201520915168 U CN201520915168 U CN 201520915168U CN 205105238 U CN205105238 U CN 205105238U
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Abstract
The utility model provides a terminal of intelligence handling end mouth data, belongs to technical field of network communications. Including diplexer filter, coupling transformer, analog front end chip, EOC chip, switch chip and external signal processing interface chips, diplexer filter sends data signal to coupling transformer, coupling transformer sends the chip to EOC with data signal through the analog front end chip, the EOC chip is the ethernet signal with the data signal modulation to with ethernet signal transmission to switch chip, outside ethernet interface is connected to the ethernet port of switch chip, and external signal handles interface chips and is connected with the switch chip, and determine the switch chip or lower of switch connects the network whether to have the loop through the status signal who handles the output of switch chip, and when detecting the loop, external signal processing interface chips controls the ethernet port that the loop was closed to the switch chip. Can solve when the loop appearing under the terminal the influence of last layer network, improve the stability of network.
Description
Technical field
The utility model belongs to network communication technology field, relates to a kind of terminal of Intelligent treatment port data, particularly a kind of can by oneself network loop coaxial cable Ethernet transmission intelligent terminal.
Background technology
The English full name of EOC(is: EthernetoverCOAX, and Chinese is: the Ethernet based on coaxial cable transmits) technology is the core technology realizing communication network, cable TV network and computer network unification of three nets.But the unification of three nets of present stage not only refers to the fusion at characteristic layer of communication network, cable TV network and computer network, further comprises the fusion of high-level business application.A local side apparatus all connects multiple stage terminal equipment usually, and terminal is placed on user's family for connecting subscriber equipment, and subscriber equipment is again by EOC network insertion internet.Multiport EOC terminal becomes the preferred unit of broadcasting and TV service fulfillment, but multiport EOC terminal likely forms network loop because of the improper use of user.If the subscriber equipment under a user terminal creates loop, connected all users will be affected and all cannot use network.Therefore, in the use of multiport EOC terminal, quote loop detection to be extremely necessary.Traditional EOC terminal cannot loop in independent processing networks, and after needing to send order by local side, control terminal is to close network interface, and the whole processing procedure time is longer, and can carry out the business of other terminal under same local side and impact.
In view of above-mentioned prior art, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The purpose of this utility model is to provide that a kind of integrated level is high, good stability and can the terminal of the Intelligent treatment port data of loop by oneself when running.
The purpose of this utility model reaches like this, a kind of terminal of Intelligent treatment port data, it is characterized in that: comprise duplexer filter, coupling transformer, analog front-end chip, EOC chip, exchanger chip and external signal Processing Interface chip, the mixed signal end of described duplexer filter connects local side, mixed signal is received from local side, described mixed signal is separated into data-signal and cable TV signal by duplexer filter, and described data-signal is sent to coupling transformer by data signal end, the data-signal described in signal receiving end reception of described coupling transformer, data-signal is sent to described EOC chip by described analog front-end chip by the signal sending end of coupling transformer, described data signal modulation is ethernet signal by described EOC chip, and described ethernet signal is sent to described exchanger chip, the ethernet signal termination of described exchanger chip receives ethernet signal, the ethernet port of exchanger chip connects external ethernet interface, export ethernet signal and receive passback ethernet signal, described passback ethernet signal is sent to EOC chip through ethernet signal end, EOC chip is sent to coupling transformer through analog front-end chip after passback ethernet signal is modulated to return path signal, duplexer filter is sent to by the signal receiving end of coupling transformer, local side is sent to again by duplexer filter, described external signal Processing Interface chip is connected with exchanger chip, the status signal exported by the specific I/O port of processing switch chip judges that exchanger chip or lower of switch connect network and whether there is loop, when loop being detected, external signal Processing Interface chip controls exchanger chip closes the ethernet port of closed-loop.
In a specific embodiment of the present utility model, the terminal of described Intelligent treatment port data also comprises the first memory module and the second memory module, the first described memory module is read-only memory, be connected with described EOC chip by serial peripheral interface bus, the second described memory module is random asccess memory, is connected with EOC chip by parallel bus.
In another specific embodiment of the present utility model, the terminal of described Intelligent treatment port data also comprises the clock module for providing clock synchronous function, and described clock module is connected with described EOC chip and described exchanger chip respectively.
In another specific embodiment of the present utility model, the terminal of described Intelligent treatment port data also comprises the indicating lamp module for display working condition, and described indicating lamp module is connected with EOC chip and exchanger chip respectively.
In another specific embodiment of the present utility model, the terminal of described Intelligent treatment port data also comprises reset chip, and described reset chip is connected with EOC chip and exchanger chip respectively.
Also have in a specific embodiment of the present utility model, the terminal of described Intelligent treatment port data also comprises power module, described power module is connected with the power source supply end of EOC chip, exchanger chip, external signal Processing Interface chip and analog front-end chip respectively, power module access external power source, for above-mentioned each chip provides operating voltage.
More of the present utility model and in a specific embodiment, described analog front-end chip adopts AR1540 chip.
In an of the present utility model and then specific embodiment, described EOC chip is high pass 74 family chip.
Of the present utility model again more and in a specific embodiment, described exchanger chip is the RTL8306 family chip of REALTEK.
In an again of the present utility model and then specific embodiment, described external signal Processing Interface chip is the ATMEGA8L family chip of ATMEL.
The utility model is owing to have employed said structure, compared with prior art, the beneficial effect had is: the external signal Processing Interface chip set up can monitor the data that switch ethernet port forwards in real time, when finding that loop appears in the ethernet port of exchanger chip, close corresponding ethernet port in real time, impact on upper layer network when there is loop under greatly solving terminal, improves the stability of network.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Fig. 2 is the structural representation of another embodiment of the present utility model.
Embodiment
Technical spirit of the present utility model and beneficial effect can be fully understood in order to make the public; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the utility model design all should be considered as protection range of the present utility model.
Embodiment 1:
Refer to Fig. 1, a kind of terminal of Intelligent treatment port data, comprise duplexer filter, coupling transformer, analog front-end chip, EOC chip, exchanger chip and external signal Processing Interface chip, wherein, described analog front-end chip is AR1540 chip; Described EOC chip is high pass 74 family chip; Described exchanger chip is the RTL8306 family chip of REALTEK; Described external signal Processing Interface chip is the ATMEGA8L family chip of ATMEL.
The mixed signal end of described duplexer filter connects local side by coaxial cable, receives mixed signal from local side.Described mixed signal is separated into data-signal and cable TV signal by duplexer filter, and described data-signal is sent to coupling transformer by data signal end, and described cable TV signal is exported by TV signal end.The data-signal described in signal receiving end reception of described coupling transformer, data-signal is sent to described EOC chip by described analog front-end chip by the signal sending end of coupling transformer.Described analog front-end chip is used for signal amplification, Signal Regulation, Signal reception, signal transmission and level conversion.Described data signal modulation is ethernet signal by described EOC chip, and described ethernet signal is sent to described exchanger chip.The ethernet signal termination of described exchanger chip receives ethernet signal, and the ethernet port of exchanger chip connects external ethernet interface, exports ethernet signal, receives the ethernet signal of passback simultaneously.The ethernet signal of described passback is sent to EOC chip through ethernet signal end, and EOC chip is sent to coupling transformer through analog front-end chip after being modulated to return path signal, then is sent to duplexer filter by the signal receiving end of coupling transformer.Described return path signal is finally sent to local side by duplexer filter by coaxial cable.Described external signal Processing Interface chip is connected with exchanger chip, and the status signal exported by monitoring in real time and the specific I/O port of processing switch chip, judges that exchanger chip or lower of switch connect network and whether there is loop.When loop being detected, external signal Processing Interface chip controls exchanger chip closes ethernet port corresponding to closed-loop.The real-time monitoring and control of network can be realized thus, improve the stability of network.
Terminal described in the utility model is when practical application, EOC chip, exchanger chip and external signal Processing Interface chip are attached on same wiring board, can ensure when the every transmission objective of network is identical with traditional EOC terminal, reduce the cost of research and development of products, production and processing, after-sales service links.When not changing the original topological structure of network, install simple, O&M cost is low, Set Top Box can be made to realize multiple functions based on broadband network such as program request, transmission of video, voice call, web page browsing, three screens are interactive.Arranged by EOC local side, can make EOC terminal by the English full name of SNMP(be: simplenetworkmanagementprotocol, Chinese is: Simple Network Management Protocol) telemanagement is carried out to centralized network management workbench.The operating frequency of EOC terminal is 7.5 ~ 67.5MHZ, and transmission range can reach 800 meters, and modulating mode adopts OFDM4096/1024/256/64/16/8-QAM, QPSK, BPSK, ROBO, and supports that the VLAN of 802.3Q/802.1Q configures.VLAN can be divided into multiple, for supporting multiple business, restrictive ports speed and under connect number of users.In addition, the utility model fail safe is high, mutually isolated between support module, and antijamming capability is strong, stable performance.
Embodiment 2:
Refer to Fig. 2, the terminal of described Intelligent treatment port data, also comprise the first memory module, the second memory module, clock module, indicating lamp module, reset chip and power module.The first described memory module is read-only memory, adopts flash memories FLASH in the present embodiment; The second described memory module is random asccess memory, adopts Double Data Rate synchronous DRAM DDR in the present embodiment.The first described memory module is connected with described EOC chip by serial peripheral interface bus, and the second described memory module is connected with EOC chip by parallel bus.Described clock module is used for providing clock synchronous function for described EOC chip, and clock module is connected with the external clock end of described EOC chip and described exchanger chip respectively.Herein, external circuit also can be adopted to provide a clock signal for EOC chip.Described indicating lamp module is connected with the indicator light output of EOC chip and the indicator light output of exchanger chip respectively, and indicating lamp module is used for the current operating state of display terminal, is convenient to Timeliness coverage and maintenance when intelligent terminal breaks down.Described reset chip is connected with the reset terminal of described EOC chip and exchanger chip respectively, when terminal of the present utility model needs electrifying startup, carries out electrification reset by this reset chip.Described power module is connected with the power source supply end of EOC chip, exchanger chip, external signal Processing Interface chip and analog front-end chip respectively, power module for accessing external power source, for above-mentioned each chip provides operating voltage.
Claims (10)
1.
a kind of terminal of Intelligent treatment port data, it is characterized in that: comprise duplexer filter, coupling transformer, analog front-end chip, EOC chip, exchanger chip and external signal Processing Interface chip, the mixed signal end of described duplexer filter connects local side, mixed signal is received from local side, described mixed signal is separated into data-signal and cable TV signal by duplexer filter, and described data-signal is sent to coupling transformer by data signal end, the data-signal described in signal receiving end reception of described coupling transformer, data-signal is sent to described EOC chip by described analog front-end chip by the signal sending end of coupling transformer, described data signal modulation is ethernet signal by described EOC chip, and described ethernet signal is sent to described exchanger chip, the ethernet signal termination of described exchanger chip receives ethernet signal, the ethernet port of exchanger chip connects external ethernet interface, export ethernet signal and receive passback ethernet signal, described passback ethernet signal is sent to EOC chip through ethernet signal end, EOC chip is sent to coupling transformer through analog front-end chip after passback ethernet signal is modulated to return path signal, duplexer filter is sent to by the signal receiving end of coupling transformer, local side is sent to again by duplexer filter, described external signal Processing Interface chip is connected with exchanger chip, the status signal exported by processing switch chip judges that exchanger chip or lower of switch connect network and whether there is loop, when loop being detected, external signal Processing Interface chip controls exchanger chip closes the ethernet port of closed-loop.
2.
the terminal of a kind of Intelligent treatment port data according to claim 1, characterized by further comprising the first memory module and the second memory module, the first described memory module is read-only memory, be connected with described EOC chip by serial peripheral interface bus, the second described memory module is random asccess memory, is connected with EOC chip by parallel bus.
3.
the terminal of a kind of Intelligent treatment port data according to claim 1, characterized by further comprising the clock module for providing clock synchronous function, and described clock module is connected with described EOC chip and described exchanger chip respectively.
4.
the terminal of a kind of Intelligent treatment port data according to claim 1, it is characterized in that also comprising the indicating lamp module for display working condition, described indicating lamp module is connected with EOC chip and exchanger chip respectively.
5.
the terminal of a kind of Intelligent treatment port data according to claim 1, characterized by further comprising reset chip, described reset chip is connected with EOC chip and exchanger chip respectively.
6.
the terminal of a kind of Intelligent treatment port data according to claim 1, characterized by further comprising power module, described power module is connected with EOC chip, exchanger chip, external signal Processing Interface chip and analog front-end chip respectively, power module access external power source, for above-mentioned each chip provides operating voltage.
7.
the terminal of a kind of Intelligent treatment port data according to claim 1, is characterized in that described analog front-end chip adopts AR1540 chip.
8.
the terminal of a kind of Intelligent treatment port data according to claim 1, is characterized in that described EOC chip is high pass 74 family chip.
9.
the terminal of a kind of Intelligent treatment port data according to claim 1, is characterized in that described exchanger chip is the RTL8306 family chip of REALTEK.
10.
the terminal of a kind of Intelligent treatment port data according to claim 1, is characterized in that described external signal Processing Interface chip is the ATMEGA8L family chip of ATMEL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915168.5U CN205105238U (en) | 2015-11-17 | 2015-11-17 | Terminal of intelligence handling end mouth data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915168.5U CN205105238U (en) | 2015-11-17 | 2015-11-17 | Terminal of intelligence handling end mouth data |
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| Publication Number | Publication Date |
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| CN205105238U true CN205105238U (en) | 2016-03-23 |
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| CN201520915168.5U Active CN205105238U (en) | 2015-11-17 | 2015-11-17 | Terminal of intelligence handling end mouth data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471629A (en) * | 2015-11-17 | 2016-04-06 | 江苏亿通高科技股份有限公司 | Terminal for intelligently processing port data |
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2015
- 2015-11-17 CN CN201520915168.5U patent/CN205105238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471629A (en) * | 2015-11-17 | 2016-04-06 | 江苏亿通高科技股份有限公司 | Terminal for intelligently processing port data |
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