CN104683089A - Time frequency synchronization fusion network architecture - Google Patents
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- CN104683089A CN104683089A CN201410724998.XA CN201410724998A CN104683089A CN 104683089 A CN104683089 A CN 104683089A CN 201410724998 A CN201410724998 A CN 201410724998A CN 104683089 A CN104683089 A CN 104683089A
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Abstract
The invention provides a time frequency synchronization fusion network architecture, which comprises backbone network first-stage and second-stage time frequency synchronization nodes, a backbone network timing link, inter-provincial transmission networks, provincial transmission networks, prefecture and county transmission networks, intra-provincial network first-stage and second-stage time-frequency synchronization nodes and an intra-provincial network timing link, wherein all of the inter-provincial transmission networks realize the one-way connection through the backbone network timing link and the backbone network first-stage time frequency synchronization nodes or the backbone network second-stage time frequency synchronization nodes; the provincial transmission networks realize one-way connection through the intra-provincial network timing link and the intra-provincial network first-stage time-frequency synchronization nodes; the provincial transmission networks and the prefecture and county transmission networks realize one-way connection through the intra-provincial network timing link and the intra-provincial network first-stage time-frequency synchronization nodes or the intra-provincial second-stage time-frequency synchronization nodes; the prefecture and county transmission networks realize one-way connection through the intra-provincial network timing link and the intra-provincial network second-stage time-frequency synchronization nodes; the inter-provincial transmission networks are connected with the provincial transmission networks through the backbone network timing link, at least two intra-provincial network first-stage time-frequency synchronization nodes and the intra-provincial network timing link.
Description
Technical field
The invention relates to power system telecommunications technology, particularly, is about a kind of Time and Frequency Synchronization UNE framework.
Background technology
For Utilities Electric Co.; no matter be electrical network self; still the power telecom network of supporting network based on; in order to ensure its safe and reliable operation; all need precise and stable Frequency Synchronization and time synchronized; wherein; power telecom network needs the Frequency Synchronization of the frequency accuracy of nE-12 magnitude and end-to-end 5 μ s magnitude drift noises; the system such as protection, peace control, automation of electrical network needs the precise synchronization up to μ s magnitude, and various network management system, computer information system and section communication equipment need the general precision time synchronized of ms magnitude.
Existing electric power networks establishes independently Frequency Synchronization net and, to meet the demand of Frequency Synchronization, for time synchronized demand, just meets the demand of time synchronized as required in transformer station's configuration satellite receiver, fail to form unified ground time service time synchronization network.In order to meet Frequency Synchronization demand and time synchronized demand, the networking means adopted are different, and both are ununified considers, this can bring series of problems, comprises network repeated construction, increases network O&M cost, network reliability reduction etc.
Summary of the invention
The main purpose of the embodiment of the present invention is to provide a kind of Time and Frequency Synchronization UNE framework, thus realizes the Synchronization Network network architecture of time synchronized and Frequency Synchronization combination network.
To achieve these goals, the embodiment of the present invention provides a kind of Time and Frequency Synchronization UNE framework, it is characterized in that, described Time and Frequency Synchronization UNE framework comprises: key Synchronization Network and multiple Synchronization Network inside the province, described key Synchronization Network is connected respectively with described multiple Synchronization Network inside the province, wherein, described key Synchronization Network comprises: multiple backbone network one-level Time and Frequency Synchronization node, multiple backbone network secondary Time and Frequency Synchronization node, many backbone network time links and multiple inter-provincial transmission network; By described backbone network time link and the unidirectional connection of backbone network one-level Time and Frequency Synchronization node between each described inter-provincial transmission network, or by described backbone network time link and the unidirectional connection of backbone network secondary Time and Frequency Synchronization node; Described Synchronization Network inside the province comprises: provincial transmission network, multiple/county's transmission network, multiple provinces Intranet one-level Time and Frequency Synchronization node, multiple provinces Intranet secondary Time and Frequency Synchronization node and Duo Tiao province Intranet time link; By described province Intranet time link and the unidirectional connection of province's Intranet one-level Time and Frequency Synchronization node between multiple described provincial transmission network; By described province Intranet time link and province's Intranet one-level Time and Frequency Synchronization node is unidirectional is connected between described provincial transmission network with described/county's transmission network, or by described province Intranet time link and economize the unidirectional connection of Intranet secondary Time and Frequency Synchronization node; Each describedly/county's transmission network between by described province Intranet time link and the unidirectional connection of province's Intranet secondary Time and Frequency Synchronization node; Described inter-provincial transmission network is connected with at least two described province Intranet one-level Time and Frequency Synchronization nodes by described backbone network time link, and described at least two described province Intranet one-level Time and Frequency Synchronization nodes are connected with described provincial transmission network by described province Intranet time link; Reference time frequency clock PRTC or zonal basis time-frequency clock LPRTC is provided with in described backbone network one-level Time and Frequency Synchronization node and described province Intranet one-level Time and Frequency Synchronization node, described reference time frequency clock PRTC produces reference time frequency clock signal, and described zonal basis time-frequency clock LPRTC produces zonal basis time-frequency clock signal; Be provided with from time-frequency clock STC in described backbone network secondary Time and Frequency Synchronization node and described province Intranet secondary Time and Frequency Synchronization node, described from time-frequency clock STC in order to receive described reference time frequency clock signal or zonal basis time-frequency clock signal, and to generate from time-frequency clock signal according to described reference time frequency clock signal or zonal basis time-frequency clock signal.
In one embodiment, above-mentioned inter-provincial transmission network and provincial transmission network are provided with province's Intranet one-level Time and Frequency Synchronization node of described reference time frequency clock PRTC and/or at least one province's Intranet one-level Time and Frequency Synchronization node connection being provided with described zonal basis time-frequency clock LPRTC by least one.
In one embodiment, above-mentioned reference time frequency clock PRTC comprises two satellite receiver, two rubidium clock time frequency unit and single or multiple caesium clock, described two rubidium clock time frequency unit receive the first time frequency signal of described satellite receiver output and the first reference signal of described caesium clock output, generate also output packet contain the described reference time frequency clock signal of very first time signal and first frequency signal according to described first time frequency signal and the first reference signal.
In one embodiment, above-mentioned zonal basis time-frequency clock LPRTC comprises two satellite receiver and two rubidium clock time frequency unit, described two rubidium clock time frequency unit receive the second time frequency signal that described satellite receiver exports, and generate also output packet contain the described zonal basis time-frequency clock signal of the second time signal and second frequency signal according to described second time frequency signal.
In one embodiment, the described backbone network one-level Time and Frequency Synchronization node and the province's Intranet one-level Time and Frequency Synchronization node that are provided with described zonal basis time-frequency clock LPRTC all comprise two-stage cascade structure: LPRTC1 Time and Frequency Synchronization node and LPRTC2 Time and Frequency Synchronization node, and the reference time frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node directly obtains from described reference time frequency clock PRTC is carried out synchronously; Described LPRTC2 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described LPRTC1 Time and Frequency Synchronization node.
In one embodiment, above-mentioned is provided with rubidium clock or crystal oscillator in time-frequency clock STC, described obtains described reference time frequency clock signal from time-frequency clock STC from described reference time frequency clock PRTC, and contain described in the 3rd time signal and the 3rd frequency signal from time-frequency clock signal according to described reference time frequency clock signal output packet, or, described obtains described zonal basis time-frequency clock signal from time-frequency clock STC from described zonal basis time-frequency clock LPRTC, and exports described from time-frequency clock signal according to described zonal basis time-frequency clock signal.
In one embodiment, be provided with the described backbone network secondary Time and Frequency Synchronization node from time-frequency clock STC and economize Intranet secondary Time and Frequency Synchronization node and all comprise three-stage cascade structure: STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node, reference time frequency clock signal described in described STC1 Time and Frequency Synchronization node directly obtains from described reference time frequency clock PRTC is carried out synchronously, or the zonal basis time-frequency clock signal described in directly obtaining from described LPRTC1 Time and Frequency Synchronization node is carried out synchronously; Described STC2 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described STC1 Time and Frequency Synchronization node, or carries out synchronously by described STC1 Time and Frequency Synchronization node from the zonal basis time-frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node acquisition; Described STC3 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described STC2 Time and Frequency Synchronization node, or is carried out synchronously from the zonal basis time-frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node acquisition by described STC2 Time and Frequency Synchronization node.
In one embodiment, the described reference time frequency clock signal that above-mentioned reference time frequency clock PRTC produces presses the order one-way transmission of PRTC->LPRTC1->LPRTC2-GreatT. GreaT.GTSTC1->STC2->STC3 between described LPRTC1 Time and Frequency Synchronization node, LPRTC2 Time and Frequency Synchronization node, STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node.
In one embodiment, the described zonal basis time-frequency clock signal that above-mentioned zonal basis time-frequency clock LPRTC produces presses the order one-way transmission of LPRTC1->LPRTC2->STC1-GreatT. GreaT.GTSTC2->STC3 between described LPRTC1 Time and Frequency Synchronization node, LPRTC2 Time and Frequency Synchronization node, STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node.
The beneficial effect of the embodiment of the present invention is, pass through the present invention, time signal and the unified transmission of frequency signal can be realized and distribute, safe and reliable, high-quality time and Frequency Synchronization transmission are provided, and greatly can save the comprehensive construction cost of the whole network, be convenient to unified operation maintenance management, improve operation maintenance management efficiency, save operation maintenance management cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the Time and Frequency Synchronization UNE framework according to the embodiment of the present invention;
Fig. 2 is the structural representation of the reference time frequency clock PRTC according to the embodiment of the present invention;
Fig. 3 is the structural representation of the zonal basis time-frequency clock LPRTC according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of Time and Frequency Synchronization UNE framework.Below in conjunction with accompanying drawing, the present invention is described in detail.
The embodiment of the present invention provides a kind of Time and Frequency Synchronization UNE framework, and as shown in Figure 1, this Time and Frequency Synchronization UNE framework comprises: key Synchronization Network 1 and multiple Synchronization Network inside the province 2, key Synchronization Network 1 is connected respectively with multiple Synchronization Network inside the province 2.
Above-mentioned key Synchronization Network 1 comprises: multiple backbone network one-level Time and Frequency Synchronization node 11, multiple backbone network secondary Time and Frequency Synchronization node 12, many backbone network time links 13 and multiple inter-provincial transmission network 14.Wherein, as shown in Figure 1, be wherein by above-mentioned backbone network time link 13 and the unidirectional connection of backbone network one-level Time and Frequency Synchronization node 11 between a part of inter-provincial transmission network 14; By above-mentioned backbone network time link 13 and the unidirectional connection of backbone network secondary Time and Frequency Synchronization node 12 between the provincial transmission network of another part 14.
Reference time frequency clock PRTC or zonal basis time-frequency clock LPRTC is provided with in each backbone network one-level Time and Frequency Synchronization node 11.Wherein, as shown in Figure 2, this reference time frequency clock PRTC comprises two reference time frequency satellite receiver, the two rubidium clock time frequency unit of reference time frequency and single or multiple caesium clock (are only a caesium clock shown in figure, but in practical application, also can multiple caesium clock be set as required, the present invention is not as limit), the two rubidium clock time frequency unit of reference time frequency receives the first time frequency signal of said reference time-frequency satellite receiver output and the first reference signal of above-mentioned caesium clock output, and generate according to this first time frequency signal and the first reference signal the reference time frequency clock signal comprising very first time signal and first frequency signal, and this reference time frequency clock signal is exported to the inter-provincial transmission network 14 be connected with backbone network one-level Time and Frequency Synchronization node 11, and by this inter-provincial transmission network 14 by reference time frequency clock signal transmission to the backbone network secondary Time and Frequency Synchronization node 12 that is connected with this inter-provincial transmission network 14 or another backbone network one-level Time and Frequency Synchronization node 11.
As shown in Figure 3, this zonal basis time-frequency clock LPRTC comprises two zonal basis time-frequency clock satellite receiver and the two rubidium clock time frequency unit of zonal basis time-frequency, the two rubidium clock time frequency unit of zonal basis time-frequency receives the second time frequency signal that above-mentioned zone reference time frequency clock satellite receiver exports, the zonal basis time-frequency clock signal comprising the second time signal and second frequency signal is generated according to the second time frequency signal, and this zonal basis time-frequency clock signal is exported to the inter-provincial transmission network 14 be connected with backbone network one-level Time and Frequency Synchronization node 11, and by this inter-provincial transmission network 14 by zonal basis time-frequency clock signal transmission to the backbone network secondary Time and Frequency Synchronization node 12 that is connected with this inter-provincial transmission network 14 or another backbone network one-level Time and Frequency Synchronization node 11.
Be provided with from time-frequency clock STC in each backbone network secondary Time and Frequency Synchronization node 12, rubidium clock or crystal oscillator should be provided with in time-frequency clock STC, reference time frequency clock signal is obtained from time-frequency clock STC from reference time frequency clock PRTC, this rubidium clock or crystal oscillator can according to this reference time frequency clock signal generate comprise the 3rd time signal and the 3rd frequency signal from time-frequency clock signal, and export this to be connected with backbone network secondary Time and Frequency Synchronization node 12 inter-provincial transmission network 14 from time-frequency clock signal, and by this inter-provincial transmission network 14 by from time-frequency clock signal transmission to another backbone network secondary Time and Frequency Synchronization node 12 be connected with this inter-provincial transmission network 14, or, zonal basis time-frequency clock signal is obtained from time-frequency clock STC from zonal basis time-frequency clock LPRTC, this rubidium clock or crystal oscillator can generate from time-frequency clock signal according to this zonal basis time-frequency clock signal, and export this to be connected with backbone network secondary Time and Frequency Synchronization node 12 inter-provincial transmission network 14 from time-frequency clock signal, and by this inter-provincial transmission network 14 by from time-frequency clock signal transmission to another backbone network secondary Time and Frequency Synchronization node 12 be connected with this inter-provincial transmission network 14.
Above-mentioned Synchronization Network inside the province 2 comprises: provincial transmission network 21, multiple/county's transmission network 22, multiple provinces Intranet one-level Time and Frequency Synchronization node 23, multiple provinces Intranet secondary Time and Frequency Synchronization node 24 and Duo Tiao province Intranet time link 25.
As shown in Figure 1, this provincial transmission network 21 with between ground/county's transmission network 22 by this province's Intranet time link 25 and province's Intranet one-level Time and Frequency Synchronization node 23 is unidirectional is connected; Or, this inside the province Synchronization Network 2 also by this province's Intranet time link 25 and economize Intranet secondary Time and Frequency Synchronization node 24 unidirectional connection.
When being provided with multiple provincial transmission network 21 in Synchronization Network 2 inside the province, by this province's Intranet time link 25 and economize the unidirectional connection of Intranet one-level Time and Frequency Synchronization node 23 between multiple provincial transmission network 21.And wherein between a part of provincial transmission network 21 with above-mentioned ground/county's transmission network 22 by this province's Intranet time link 25 and province's Intranet one-level Time and Frequency Synchronization node 23 is unidirectional is connected; Another part inside the province Synchronization Network 2 passes through this province's Intranet time link 25 and economizes the unidirectional connection of Intranet secondary Time and Frequency Synchronization node 24.
In Synchronization Network 2 inside the province, by this province's Intranet time link 25 and the unidirectional connection of province's Intranet secondary Time and Frequency Synchronization node 24 between each above-mentioned ground/county's transmission network 22.
Reference time frequency clock PRTC or zonal basis time-frequency clock LPRTC is provided with in each province Intranet one-level Time and Frequency Synchronization node 23.Wherein, as shown in Figure 2, this reference time frequency clock PRTC comprises two reference time frequency satellite receiver, the two rubidium clock time frequency unit of reference time frequency and single or multiple caesium clock (are only a caesium clock shown in figure, but in practical application, also can multiple caesium clock be set as required, the present invention is not as limit), the two rubidium clock time frequency unit of reference time frequency receives the first time frequency signal of said reference time-frequency satellite receiver output and the first reference signal of above-mentioned caesium clock output, and generate according to this first time frequency signal and the first reference signal the reference time frequency clock signal comprising very first time signal and first frequency signal, and this reference time frequency clock signal is exported to the provincial transmission network 21 or ground/county's transmission network 22 that are connected with province Intranet one-level Time and Frequency Synchronization node 23, and by this provincial transmission network 21 or ground/county's transmission network 22 by reference time frequency clock signal transmission to the province's Intranet secondary Time and Frequency Synchronization node 24 be connected with this provincial transmission network 21 or ground/county's transmission network 22 or another province's Intranet one-level Time and Frequency Synchronization node 23.
As shown in Figure 3, above-mentioned zonal basis time-frequency clock LPRTC comprises two zonal basis time-frequency clock satellite receiver and the two rubidium clock time frequency unit of zonal basis time-frequency, the two rubidium clock time frequency unit of zonal basis time-frequency receives the second time frequency signal that above-mentioned zone reference time frequency clock satellite receiver exports, the zonal basis time-frequency clock signal comprising the second time signal and second frequency signal is generated according to the second time frequency signal, and this zonal basis time-frequency clock signal is exported to the provincial transmission network 21 or ground/county's transmission network 22 that are connected with province Intranet one-level Time and Frequency Synchronization node 23, and by this provincial transmission network 21 or ground/county's transmission network 22 by zonal basis time-frequency clock signal transmission to the province's Intranet secondary Time and Frequency Synchronization node 24 be connected with this provincial transmission network 21 or ground/county's transmission network 22 or another province's Intranet one-level Time and Frequency Synchronization node 23.
Be provided with from time-frequency clock STC in each province Intranet secondary Time and Frequency Synchronization node 24, rubidium clock or crystal oscillator should be provided with in time-frequency clock STC, reference time frequency clock signal is obtained from time-frequency clock STC from reference time frequency clock PRTC, this rubidium clock or crystal oscillator can according to this reference time frequency clock signal generate comprise the 3rd time signal and the 3rd frequency signal from time-frequency clock signal, and export this to be connected with province Intranet secondary Time and Frequency Synchronization node 24 provincial transmission network 21 or ground/county's transmission network 22 from time-frequency clock signal, and by this provincial transmission network 21 or ground/county's transmission network 22 by from time-frequency clock signal transmission to another province's Intranet secondary Time and Frequency Synchronization node 24 be connected with this provincial transmission network 21 or ground/county's transmission network 22, or, zonal basis time-frequency clock signal is obtained from time-frequency clock STC from zonal basis time-frequency clock LPRTC, this rubidium clock or crystal oscillator can generate from time-frequency clock signal according to this zonal basis time-frequency clock signal, and export this to be connected with province Intranet secondary Time and Frequency Synchronization node 24 provincial transmission network 21 or ground/county's transmission network 22 from time-frequency clock signal, and by this provincial transmission network 21 or ground/county's transmission network 22 by from time-frequency clock signal transmission to another province's Intranet secondary Time and Frequency Synchronization node 24 be connected with this provincial transmission network 21 or ground/county's transmission network 22.
In order to ensure the security reliability of whole Time and Frequency Synchronization UNE framework, two province's Intranet one-level Time and Frequency Synchronization nodes 23 are at least set in each Synchronization Network inside the province 2, in this embodiment, that to arrange two province's Intranet one-level Time and Frequency Synchronization nodes 23 be example, but the present invention is not limited to this, plural province Intranet one-level Time and Frequency Synchronization node 23 also can be set according to actual needs.Reference time frequency clock PRTC is provided with in one of them this province's Intranet one-level Time and Frequency Synchronization node 23, zonal basis time-frequency clock LPRTC1 is provided with in another this province's Intranet one-level Time and Frequency Synchronization node 23, in practical application, reference time frequency clock PRTC should be arranged on most important business site and transmission website inside the province, and zonal basis time-frequency clock LPRTC1 should be arranged on time important business site and transmission website.As shown in Figure 1, as the common reference time frequency signal source of key Synchronization Network 1 and Synchronization Network 2 inside the province, key Synchronization Network 1 and inside the province Synchronization Network 2 two aspects will be coupled together by these two province's Intranet one-level Time and Frequency Synchronization nodes 23 in Synchronization Network 2 inside the province, therefore, be in fact key Synchronization Network 1 and inside the province Synchronization Network 2 jointly include two above-mentioned province's Intranet one-level Time and Frequency Synchronization nodes 23.In addition, each keeps relatively independent between Synchronization Network 2 inside the province.Particularly, be that inter-provincial transmission network 14 in key Synchronization Network 1 is connected with above-mentioned two province's Intranet one-level Time and Frequency Synchronization nodes 23 by backbone network time link 13, above-mentioned two province's Intranet one-level Time and Frequency Synchronization nodes 23 are connected with provincial transmission network 22 by economizing Intranet time link 25.
By the Time and Frequency Synchronization UNE framework of the embodiment of the present invention, time signal and the unified transmission of frequency signal can be realized and distribute, safe and reliable, high-quality time and Frequency Synchronization transmission are provided, and greatly can save the comprehensive construction cost of the whole network, be convenient to unified operation maintenance management, improve operation maintenance management efficiency, save operation maintenance management cost.
In actual applications, the above-mentioned backbone network one-level Time and Frequency Synchronization node 11 being provided with zonal basis time-frequency clock LPRTC and province's Intranet one-level Time and Frequency Synchronization node 23 all can comprise two-stage cascade structure: LPRTC1 Time and Frequency Synchronization node and LPRTC2 Time and Frequency Synchronization node, wherein, this LPRTC1 Time and Frequency Synchronization node directly carries out synchronously from above-mentioned reference time frequency clock PRTC acquisition reference time frequency clock signal; This LPRTC2 Time and Frequency Synchronization node then obtains reference time frequency clock signal by this LPRTC1 Time and Frequency Synchronization node from reference time frequency clock PRTC to carry out synchronously.
And above-mentioned being provided with all can comprise three-stage cascade structure from the backbone network secondary Time and Frequency Synchronization node 12 and province's Intranet secondary Time and Frequency Synchronization node 24 of time-frequency clock STC: STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node, wherein, this STC1 Time and Frequency Synchronization node directly obtains reference time frequency clock signal from reference time frequency clock PRTC to carry out synchronously, or directly carries out synchronously from LPRTC1 Time and Frequency Synchronization node acquisition zonal basis time-frequency clock signal; This STC2 Time and Frequency Synchronization node obtains reference time frequency clock signal by STC1 Time and Frequency Synchronization node from reference time frequency clock PRTC to carry out synchronously, or carries out synchronously by STC1 Time and Frequency Synchronization node from LPRTC1 Time and Frequency Synchronization node acquisition zonal basis time-frequency clock signal; This STC3 Time and Frequency Synchronization node obtains reference time frequency clock signal by STC2 Time and Frequency Synchronization node from reference time frequency clock PRTC to carry out synchronously, or is carried out synchronously from LPRTC1 Time and Frequency Synchronization node acquisition zonal basis time-frequency clock signal by STC2 Time and Frequency Synchronization node.
In the Time and Frequency Synchronization UNE framework of the embodiment of the present invention, the time-frequency reference signal of transmission can only one-way transmission from top to bottom, specifically refer to, the reference time frequency clock signal that reference time frequency clock PRTC produces is at LPRTC1 Time and Frequency Synchronization node, LPRTC2 Time and Frequency Synchronization node, STC1 Time and Frequency Synchronization node, the order one-way transmission of PRTC->LPRTC1->LPRTC2-GreatT. GreaT.GTSTC1->STC2->STC3 is pressed between STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node.And STC1 Time and Frequency Synchronization node also directly can obtain reference time frequency clock signal from reference time frequency clock PRTC, or directly obtain zonal basis time-frequency clock signal from LPRTC1 Time and Frequency Synchronization node.
During concrete enforcement, 1588 messages of band precise time stamp can be integrated in the signal transmission that the Time and Frequency Synchronization equipment (exporting the reference time frequency clock PRTC of said reference time-frequency clock signal or the zonal basis time-frequency clock LPRTC of output area reference time frequency clock signal) being in upstream exports, be referred to as Time-Frequency Fusion signal, this Time-Frequency Fusion signal is by above-mentioned backbone network time link 13 or economize after Intranet time link 25 adopts 1588 technology to carry out carrying and transmit, the Time and Frequency Synchronization equipment in downstream (receive this Time-Frequency Fusion signal zonal basis time-frequency clock LPRTC or from time-frequency clock STC) then adopt UTI or 1588 technology, can simultaneously recovery time and frequency signal according to this Time-Frequency Fusion signal, with the Time and Frequency Synchronization of the Time and Frequency Synchronization equipment of the Time and Frequency Synchronization equipment and downstream that realize upstream.
The Time and Frequency Synchronization UNE framework of the embodiment of the present invention adopts two-tier system and two-stage hierarchical organization, wherein two-tier system refers to that " key Time and Frequency Synchronization net and inside the province Time and Frequency Synchronization net " is two-layer, two-stage hierarchical organization refers to, no matter be key Time and Frequency Synchronization net, still Time and Frequency Synchronization net inside the province, all comprises " one-level Time and Frequency Synchronization node and secondary Time and Frequency Synchronization node ".Relative to original three-tier architecture and three grades of hierarchical organizations, adopt two-tier system and two-stage hierarchical organization advantage to be: on the one hand, to be conducive to the planning of synchronization link, effectively can to shorten the length of extremely long time link, realize the control to the whole network drift index; On the other hand, can network level be reduced, make socket more clear, be convenient to maintenance management.
One of ordinary skill in the art will appreciate that the hardware that all or part of step realized in above-described embodiment method can carry out instruction relevant by program has come, this program can be stored in a computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a Time and Frequency Synchronization UNE framework, is characterized in that, described Time and Frequency Synchronization UNE framework comprises: key Synchronization Network and multiple Synchronization Network inside the province, and described key Synchronization Network is connected respectively with described multiple Synchronization Network inside the province, wherein,
Described key Synchronization Network comprises: multiple backbone network one-level Time and Frequency Synchronization node, multiple backbone network secondary Time and Frequency Synchronization node, many backbone network time links and multiple inter-provincial transmission network;
By described backbone network time link and the unidirectional connection of backbone network one-level Time and Frequency Synchronization node between each described inter-provincial transmission network, or by described backbone network time link and the unidirectional connection of backbone network secondary Time and Frequency Synchronization node;
Described Synchronization Network inside the province comprises: provincial transmission network, multiple/county's transmission network, multiple provinces Intranet one-level Time and Frequency Synchronization node, multiple provinces Intranet secondary Time and Frequency Synchronization node and Duo Tiao province Intranet time link;
By described province Intranet time link and the unidirectional connection of province's Intranet one-level Time and Frequency Synchronization node between multiple described provincial transmission network;
By described province Intranet time link and province's Intranet one-level Time and Frequency Synchronization node is unidirectional is connected between described provincial transmission network with described/county's transmission network, or by described province Intranet time link and economize the unidirectional connection of Intranet secondary Time and Frequency Synchronization node;
Each describedly/county's transmission network between by described province Intranet time link and the unidirectional connection of province's Intranet secondary Time and Frequency Synchronization node;
Described inter-provincial transmission network is connected with at least two described province Intranet one-level Time and Frequency Synchronization nodes by described backbone network time link, and described at least two described province Intranet one-level Time and Frequency Synchronization nodes are connected with described provincial transmission network by described province Intranet time link;
Reference time frequency clock PRTC or zonal basis time-frequency clock LPRTC is provided with in described backbone network one-level Time and Frequency Synchronization node and described province Intranet one-level Time and Frequency Synchronization node, described reference time frequency clock PRTC produces reference time frequency clock signal, and described zonal basis time-frequency clock LPRTC produces zonal basis time-frequency clock signal;
Be provided with from time-frequency clock STC in described backbone network secondary Time and Frequency Synchronization node and described province Intranet secondary Time and Frequency Synchronization node, described from time-frequency clock STC in order to receive described reference time frequency clock signal or zonal basis time-frequency clock signal, and to produce from time-frequency clock signal according to described reference time frequency clock signal or zonal basis time-frequency clock signal.
2. Time and Frequency Synchronization UNE framework according to claim 1, it is characterized in that, described inter-provincial transmission network and provincial transmission network are provided with province's Intranet one-level Time and Frequency Synchronization node of described reference time frequency clock PRTC and/or at least one province's Intranet one-level Time and Frequency Synchronization node connection being provided with described zonal basis time-frequency clock LPRTC by least one.
3. Time and Frequency Synchronization UNE framework according to claim 2, it is characterized in that, described reference time frequency clock PRTC comprises two the first satellite receiver, first pair of rubidium clock time frequency unit and single or multiple caesium clock, the first time frequency signal that first pair of described described first satellite receiver of rubidium clock time frequency unit reception exports and the first reference signal that described caesium clock exports, generate also output packet according to described first time frequency signal and the first reference signal and contain the described reference time frequency clock signal of very first time signal and first frequency signal.
4. Time and Frequency Synchronization UNE framework according to claim 3, it is characterized in that, described zonal basis time-frequency clock LPRTC comprises two the second satellite receiver and second pair of rubidium clock time frequency unit, second pair of described rubidium clock time frequency unit receives the second time frequency signal that described second satellite receiver exports, and generates also output packet contain the described zonal basis time-frequency clock signal of the second time signal and second frequency signal according to described second time frequency signal.
5. Time and Frequency Synchronization UNE framework according to claim 4, it is characterized in that, the described backbone network one-level Time and Frequency Synchronization node and the province's Intranet one-level Time and Frequency Synchronization node that are provided with described zonal basis time-frequency clock LPRTC all comprise two-stage cascade structure: LPRTC1 Time and Frequency Synchronization node and LPRTC2 Time and Frequency Synchronization node
Reference time frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node directly obtains from described reference time frequency clock PRTC is carried out synchronously;
Described LPRTC2 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described LPRTC1 Time and Frequency Synchronization node.
6. Time and Frequency Synchronization UNE framework according to claim 5, it is characterized in that, described is provided with rubidium clock or crystal oscillator in time-frequency clock STC, described obtains described reference time frequency clock signal from time-frequency clock STC from described reference time frequency clock PRTC, and contain described in the 3rd time signal and the 3rd frequency signal from time-frequency clock signal according to described reference time frequency clock signal output packet, or, described obtains described zonal basis time-frequency clock signal from time-frequency clock STC from described zonal basis time-frequency clock LPRTC, and export described from time-frequency clock signal according to described zonal basis time-frequency clock signal.
7. Time and Frequency Synchronization UNE framework according to claim 6, it is characterized in that, be provided with the described backbone network secondary Time and Frequency Synchronization node from time-frequency clock STC and economize Intranet secondary Time and Frequency Synchronization node and all comprise three-stage cascade structure: STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node
Reference time frequency clock signal described in described STC1 Time and Frequency Synchronization node directly obtains from described reference time frequency clock PRTC is carried out synchronously, or the zonal basis time-frequency clock signal described in directly obtaining from described LPRTC1 Time and Frequency Synchronization node is carried out synchronously;
Described STC2 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described STC1 Time and Frequency Synchronization node, or carries out synchronously by described STC1 Time and Frequency Synchronization node from the zonal basis time-frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node acquisition;
Described STC3 Time and Frequency Synchronization node is carried out synchronously from the reference time frequency clock signal described in described reference time frequency clock PRTC acquisition by described STC2 Time and Frequency Synchronization node, or is carried out synchronously from the zonal basis time-frequency clock signal described in described LPRTC1 Time and Frequency Synchronization node acquisition by described STC2 Time and Frequency Synchronization node.
8. Time and Frequency Synchronization UNE framework according to claim 7, it is characterized in that, the described reference time frequency clock signal that described reference time frequency clock PRTC produces presses the order one-way transmission of PRTC->LPRTC1->LPRTC2-GreatT. GreaT.GTSTC1->STC2->STC3 between described LPRTC1 Time and Frequency Synchronization node, LPRTC2 Time and Frequency Synchronization node, STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node.
9. Time and Frequency Synchronization UNE framework according to claim 7, it is characterized in that, the described zonal basis time-frequency clock signal that described zonal basis time-frequency clock LPRTC produces presses the order one-way transmission of LPRTC1->LPRTC2->STC1-GreatT. GreaT.GTSTC2->STC3 between described LPRTC1 Time and Frequency Synchronization node, LPRTC2 Time and Frequency Synchronization node, STC1 Time and Frequency Synchronization node, STC2 Time and Frequency Synchronization node and STC3 Time and Frequency Synchronization node.
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