CN104378248A - Automatic detecting and control method for data ports of coaxial switch - Google Patents
Automatic detecting and control method for data ports of coaxial switch Download PDFInfo
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- CN104378248A CN104378248A CN201310311813.8A CN201310311813A CN104378248A CN 104378248 A CN104378248 A CN 104378248A CN 201310311813 A CN201310311813 A CN 201310311813A CN 104378248 A CN104378248 A CN 104378248A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 13
- 230000010354 integration Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 1
- 206010033799 Paralysis Diseases 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- DLGOEMSEDOSKAD-UHFFFAOYSA-N Carmustine Chemical compound ClCCNC(=O)N(N=O)CCCl DLGOEMSEDOSKAD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention discloses an automatic detecting and control method for data ports of a coaxial switch. The automatic detecting and control method is mainly technically characterized in that a central processing module is connected with a network module through multiple paths of control signals, a data line and control transformation logic, a network port monitoring module monitors all the ports of the coaxial switch in real time, when a channel of a certain port of the switch is blocked, relevant control operation is carried out immediately, channel blocking is solved, and a system cannot be in network paralysis. The method is strong in function and convenient to operate, a traditional network blocking problem is solved, and the safety of the network system is greatly improved.
Description
Technical field
The present invention relates to network communication technology field and broadcasting television technology field, particularly relate to the automatic Detection & Controling method of coaxial switchboard FPDP and base band coaxial data converting system thereof.
Background technology
EOC(Ethernet over Coax, coaxial Ethernet) be that the technology transmitting Ethernet data is on coax referred to as.According to distinguishing custom in early days, EoC technology is divided into active EoC and passive EOC.
Passive EOC is directly coupled to Coaxial Cables the baseband signal of Ethernet by passive device, is therefore also called baseband EOC.The advantages such as it has easy construction, with low cost are the ideal schemes of Two-way Reconstruction in CATV Network.
Its system composition as shown in Figure 1.Wherein, BCEB(Baseband Coax Ethernet Bridge, the coaxial Ethernet bridge of baseband) be the host node device of baseband EOC system, be arranged in corridor, BCNU(Baseband Coax Network Unit, the coaxial ethernet terminal of baseband) be the user terminal of baseband EOC system, be arranged in user family.BCNU is configured with DATA interface, TV interface etc. usually; DATA interface is for connecting the network equipments such as PC network interface card, switch, router, and TV interface is for connecting the radio and television equipments such as television set, splitter, distributor.
But the program is owing to adopting simple signal coupling, high to impedance matching requirements, data link is unsettled easily causes the problems such as network channel blocking and then paralysis.
Summary of the invention
In view of this, the present invention proposes a kind of automatic Detection & Controling method of coaxial switchboard FPDP and baseband EOC system thereof, guarantees system stability reliability service with extremely low cost.
Technical scheme is as follows:
In the passive EOC system shown in Fig. 1, add a network port monitoring module, form baseband EOC system as shown in Figure 2.
In system operation, network port monitoring module carries out Real-Time Monitoring to each port of switch, when finding that switch port has channel blockage phenomenon, implementing relevant control operation immediately, removing channel blockage, making system be unlikely to be absorbed in network paralysis.
Channel blockage phenomenon is eliminated, and switch enters normal operating conditions, and other port beyond this port all recovers normal operating conditions.This port data link is once recover normal, then this port also recovers normal operating conditions immediately.
Know-why is as follows:
When the data link (comprising clear data link and mixed signal transmission link) of certain port is disconnected, will cause impedance mismatch, now switch sends data to this port and can form channel blockage because of signal reflex.After channel blockage, a large amount of internal resources of switch are occupied, have no time to attend to other port and make whole baseband EOC system be absorbed in network paralysis.
After carrying out relevant control operation to this problem port, channel blockage is removed, owing to not having the transmission of data, so again can not form blocking.Now switch reenters normal operating conditions, and other port beyond this problem port all recovers normal operating conditions, and this problem port data link is once recover normally also to recover normal operating conditions immediately.
Advantage of the present invention is, solves problem with extremely low cost.
Accompanying drawing explanation
Fig. 1 is baseband EOC system schematic
Fig. 2 is the schematic diagram of present system
Embodiment
The Detection & Controling function of port is combined, is made on one piece of wiring board, form a network port monitoring module.Network port monitoring module as a component integration in BCEB.Switch selects the point-and-shoot switch that the simple price of function is low, using this switch plate also as a component integration in BCEB.Adopt a MCU to carry out state-detection to switch in module, and each mixed signal port of BCEB is controlled.
In system operation, MCU ceaselessly detects switch and sends ground status signal here, and judges.When certain port Impedance mismatch causes channel blockage, to be detected by the MCU in network port monitoring module and judge, MCU sends associated control signal immediately, eliminate channel blockage, after all of the port beyond problem port all recovers normal work, the data link of disconnection is once be turned on again and can enter normal operating conditions at any time.
From illustrating above and analyzing, this programme solves practical problem; Also be not difficult to find out, what system adopted is conventional device, and circuit is simple, with low cost.
Claims (4)
1. the automatic Detection & Controling method of coaxial switchboard FPDP; its technical characteristics is that central processing module is by multi-way control signals, data wire and control conversion logic interconnection network module; the Detection & Controling function of port is combined; be made on one piece of wiring board, form a network port monitoring module; Network port monitoring module as a component integration in BCEB; Coaxial switchboard selects the point-and-shoot switch that the simple price of function is low, using this switch plate also as a component integration in BCEB; Adopt a MCU to carry out state-detection to switch in module, and each mixed signal port of BCEB is controlled; In system operation, MCU ceaselessly detects switch and sends ground status signal here, and judges; When certain port Impedance mismatch causes channel blockage, to be detected by the MCU in network port monitoring module and judge, MCU sends associated control signal immediately, eliminate channel blockage, after all of the port beyond problem port all recovers normal work, the data link of disconnection is once be turned on again and can enter normal operating conditions at any time.
2. according to claims 1: a kind of automatic Detection & Controling method of coaxial switchboard FPDP, is characterized in that: the Detection & Controling function of port combined, and is made on one piece of wiring board, forms a network port monitoring module.
3. according to claims 1: a kind of automatic Detection & Controling method of coaxial switchboard FPDP, is characterized in that: using this switch plate also as a component integration in BCEB.
4. according to claims 1: a kind of automatic Detection & Controling method of coaxial switchboard FPDP, is characterized in that: adopt a MCU to carry out state-detection to switch in module, and control each mixed signal port of BCEB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311813.8A CN104378248A (en) | 2013-08-12 | 2013-08-12 | Automatic detecting and control method for data ports of coaxial switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311813.8A CN104378248A (en) | 2013-08-12 | 2013-08-12 | Automatic detecting and control method for data ports of coaxial switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104378248A true CN104378248A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310311813.8A Pending CN104378248A (en) | 2013-08-12 | 2013-08-12 | Automatic detecting and control method for data ports of coaxial switch |
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| Country | Link |
|---|---|
| CN (1) | CN104378248A (en) |
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2013
- 2013-08-12 CN CN201310311813.8A patent/CN104378248A/en active Pending
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Application publication date: 20150225 |