CN102185990B - Master-slave digital collinear communication system and communication method thereof - Google Patents
Master-slave digital collinear communication system and communication method thereof Download PDFInfo
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- CN102185990B CN102185990B CN 201110145007 CN201110145007A CN102185990B CN 102185990 B CN102185990 B CN 102185990B CN 201110145007 CN201110145007 CN 201110145007 CN 201110145007 A CN201110145007 A CN 201110145007A CN 102185990 B CN102185990 B CN 102185990B
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Abstract
The invention discloses a master-slave digital collinear communication system. The system comprises N nodes which are connected in series through a digital link, wherein each node comprises at least one phone interface used for connecting phone terminals; N is a positive integer more than or equal to 2; M collinear channels are multiplexed on the digital link, and only one node in each collinear channel is used as a master station node; and the M is a positive integer more than or equal to 1. The embodiment of the invention also provides a communication method of the system. Compared with theconventional digital collinear technology, a plurality of collinear channels can be realized through one digital link, so the system and method provided by the embodiment of the invention can be implemented more simply with low cost.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of master-slave digital collinear communication system and communication means.
Background technology
In the existing master/slave communication, in order to realize the digital collinear call model of many conllinear passages, can the digital speech processing module be set at station exchange, and be digital channel of every conllinear channel allocation, make the slave station on this conllinear passage be connected to main website, carry out signaling by the digital speech processing module unification on the station exchange and process, thereby realize the digital collinear calling.Can also the digital speech processing module be set respectively on as the slave station of party telephone at each, thereby realize that digital collinear processes.
But existing digital collinear Technology Need additional configuration digital speech processing module, even also need to dispose many digital passages, it is embodied as originally higher.
Summary of the invention
The purpose of this invention is to provide a kind of master-slave digital collinear communication system and communication means.
The objective of the invention is to be achieved through the following technical solutions:
A kind of master-slave digital collinear communication system comprises:
N node is by a digital link serial connection, and each node comprises at least one phone interface, is used for connecting phone set terminal, and described N is positive integer, and N 〉=2;
Multiplexing M bar conllinear passage on the described digital link has and only has a node as master node in every conllinear passage, described M is positive integer, and M 〉=1.
Communication means in a kind of above-mentioned system comprises:
N node sends channel associated signalling in real time by digital link respectively, carry the identity information of this node, call status information and the master node interface modes information of this node in the described channel associated signalling, described identity information is master node or slave node, described call status information is free time, off-hook, line holding, ring, low-resistance or unallocated speech channel, and described master node interface modes information is hot line pattern or dialing mode;
Each node is according to the channel associated signalling of other nodes that receive, and the state machine branching algorithm, dynamically determines the node location of this node in communication system and this node current talking state.
As seen from the above technical solution provided by the invention, a kind of master-slave digital collinear communication system and communication means that the embodiment of the invention provides, owing to can realize a plurality of conllinear passages by a digital link, than existing digital collinear technology, a kind of more simple, and the implementation of cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The annular connected system structural representation that Fig. 1 provides for the embodiment of the invention;
The chain connected system structural representation that Fig. 2 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that obtains under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
A kind of master-slave digital collinear communication system, this system configuration is as follows:
N node is by a digital link serial connection, and each node comprises at least one phone interface, and the phone interface is used for connecting phone set terminal, and described N is positive integer, and N 〉=2;
Wherein, node refers to be used in the system equipment of realization party telephone business.
Multiplexing M bar conllinear passage on the above-mentioned digital link has and only has a node as master node in every conllinear passage, described M is positive integer, and M 〉=1.
Wherein, connect with annular shown in Figure 1 between N the node, perhaps connect with chain shown in Figure 2.If connect with annular, then each node can also be provided with Single Point of Faliure self-healed protection function.If connect with chain, then the main website in each conllinear passage can be arranged on the optional position in the chain.
In the system that the invention described above embodiment provides, owing to can realize a plurality of conllinear passages by a digital link, than existing digital collinear technology, be a kind of more simple, and implementation cheaply.
In the claimed system of the embodiment of the invention, if many conllinear channel multiplexing digital links are arranged, but then concrete time-division slot is multiplexing, and is also can frequency division multiplexing, can also realize according to other existing multiplex modes.If digital link is the E1 digital link, then above-mentioned many conllinear passage time-division slots are multiplexing on digital link, and 30 conllinear channel multiplexings can be arranged at most on the E1 digital link.
The embodiment of the invention also provides a kind of communication means in said system, before describing the method, first to the technical term that wherein the relates to explanation that makes an explanation:
Master node, for each conllinear passage, every conllinear passage has and only has a master node, and a node can be used as the master node of a plurality of conllinear passages.
The phone interface modes comprises common dialing mode and hot line pattern.Under common dialing mode, the phone interface of master node is local side interface FXO, and the phone interface modes of slave node is remote interface FXS; Under the hot line pattern, the phone interface of master node and slave node is hot line interface FXD.In order to prevent that transition state from causing state transitions, the embodiment of the invention has also defined the ceases to be busy pattern, and determines that by timer the ceases to be busy pattern is the stable state of phone interface modes.Under the ceases to be busy pattern, corresponding conllinear passage is invalid, and each node disconnects the communication with the phone interface under this conllinear passage, do not respond off-hook, on-hook and other actions of phone interface; Master node connects effective side to digital link and sends unallocated speech channel signaling; Slave node sends idle signaling to bilateral as the signaling of transmitting bilateral when node during as end node or lonely node.
The link position comprises through node, end node and lonely node.Wherein, refer to that through node the both sides digital link of node connects all effective; End node refers to that the both sides digital link of node only has a side effective in connecting; It is all invalid that lonely node refers to that the both sides digital link of node connects.In the system that the embodiment of the invention provides, be chain or annular connection between node, therefore, each node all has two digital links, is connected with the node of both sides respectively.
Channel associated signalling, different conllinear passages has respectively its each self-corresponding channel associated signalling, carry the information relevant with conllinear passage n in the channel associated signalling that transmits among the conllinear passage n, each node in the system sends channel associated signalling in real time in each conllinear passage, and receives in real time channel associated signalling.
For example and without limitation, this channel associated signalling can be the ABCD channel associated signalling, and corresponding signaling rule is as shown in table 1:
Table 1
Wherein, bit D is the node identity information, bit D be 1 the expression channel associated signalling from master node, bit D be 0 the expression channel associated signalling from slave node; The bit C of the channel associated signalling that master node sends is the phone interface modes information of master node, bit C is that the phone interface modes of 0 expression master node is hot line pattern (but except its medium or low resistance signaling), and bit C is that the phone interface modes of 1 expression master node is common dialing mode.
The processing procedure of the communication means that the embodiment of the invention provides is as follows:
N node receives channel associated signalling in real time in each conllinear passage;
Described N node is according to the channel associated signalling and the current communications status in the conllinear passage of correspondence that receive, according to predetermined state transitions algorithm, dynamically determine next communications status in the conllinear passage of correspondence, and generate channel associated signalling according to described next communications status;
A described N node sends the channel associated signalling that generates in real time in each conllinear passage.
Wherein, the state transitions algorithm can be pre-configured according to the communication requirement of reality.After having determined communication requirement, those skilled in the art can according to existing realization means configuration status branching algorithm, not need to pay creative work.
The method that the embodiment of the invention provides, each node in the system generates channel associated signalling in real time, and receive in real time channel associated signalling, by the channel associated signalling that receives and predetermined state transitions algorithm, determine the communications status of this node, and then carry out corresponding traffic operation, thereby realized the communication of a digital link of a plurality of conllinear channel multiplexings in the master-slave digital collinear system.And the communication means that adopts the embodiment of the invention to provide need not additional configuration digital speech processing module, is that a kind of realization is simple, and communication mode with low cost.
In the method that the invention described above embodiment provides, a described N node determines that dynamically the specific implementation of next communications status in the conllinear passage of correspondence can be:
Step 1, each node are according to phone interface modes information and the identity information of this node in the conllinear passage of correspondence, selection mode branching algorithm;
Wherein, phone interface modes information comprises: hot line pattern, common dialing mode and ceases to be busy pattern; Identity information comprises: master node, and slave node; Each node all disposes a plurality of state transitions algorithms, respectively corresponding different phone interface modes and the combination of identity information.
Step 2, each node are according to the state transitions algorithm of selecting, determine and the current communications status of this node in corresponding conllinear passage, this node link position and next communications status corresponding to local communication event in corresponding conllinear passage that described local communication event comprises: this node receives channel associated signalling, detect ringing-current, detect the phone set terminal off-hook of this node and detect the phone set terminal on-hook of this node.
For according to next communications status of link location positioning, in the method that the embodiment of the invention provides, each node also comprises determines this node link position:
Master node local microcontroller in each conllinear passage is judged the link position of this node in the conllinear passage of correspondence according to digital link LOS (loss of signal alarm signal) or LOF (loss of frame alarm signal);
Slave node in each conllinear passage is judged the link position of this node in the conllinear passage of correspondence according to the channel associated signalling that receives and LOS or the LOF of digital link.
Concrete, whether master node links effective according to the digital link that pin information LOS or the LOF of chip judges both sides; Whether the slave node local microcontroller is effective according to the digital link link that LOS or the LOF of digital link judges both sides, also judge according to whether receiving unallocated speech channel signaling whether digital link connects effective, concrete, if the digital link of either side receives unallocated speech channel signaling, then this side digital link connection is invalid.And then, after judging the link position of this node, whether the digital link connection of both sides is effectively carried out mark.
Wherein, the specific implementation of link position judgment also can realize by the state transitions algorithm.
If in communication process, master node can switch the phone interface modes, and perhaps slave node is not known the phone interface modes of master node, and then the method that provides of the embodiment of the invention also comprises following operation:
Slave node in each conllinear passage is according to the channel associated signalling of the master node that receives, the phone interface modes of this node of dynamic-configuration.The phone interface modes information of carrying master node in the channel associated signalling that wherein, the master node in each conllinear passage sends.
The below will be elaborated to the system and method that the embodiment of the invention provides.
Take loop network shown in Figure 1 as example.Suppose in this loop network the channel multiplexing of m bar conllinear is arranged on E1, wherein, have and only have a master node on every conllinear passage, a node in the loop network can be the master node in a plurality of conllinear passages.
Can be provided with m indicator light on each node, corresponding m bar conllinear passage respectively, normal when bright when indicator light, conllinear passage corresponding to expression is occupied; When indicator light fast blink (for example, according to the frequency scintillation of 1Hz), conllinear passage corresponding to expression taken by our station; When indicator light glimmered at a slow speed (for example, dodging slowly according to the duty ratio speed of 1s: 4s), conllinear passage corresponding to expression had the phone incoming call.
The communication means that the embodiment of the invention provides specifically can be realized grouping busy and singly be answered formula communication, specifically: the phone set terminal of master node is during as caller, group busy the phone set terminal of other slave nodes in the corresponding conllinear passage, set up communication connection when the phone set terminal off-hook of certain slave node and the phone set terminal of master node, then other slave stations can't be monitored this conversation; The phone set terminal of slave node can only be called out the phone set terminal of master node, and can't directly call the phone set terminal of other slave nodes.Singly answer the formula conversation in order to realize grouping busy, it is that those skilled in the art are namely obtainable under the prerequisite of not paying creative work that the state transitions algorithm is configured.
(1), when the phone interface modes of master node is common dialing mode, the concrete mode that the method that using the embodiment of the invention provides communicates is as follows:
When (1) phone set terminal of master node was called out the phone set terminal of slave node: the phone set terminal off-hook of master node made a call to all slave nodes of corresponding conllinear passage; Indicator light quickflashing and the ring of the correspondence of all on-hook slave nodes, the corresponding indicator light of non-on-hook slave station dodges prompting slowly.The phone set terminal off-hook of arbitrary on-hook slave node is then set up conversation between the phone set terminal of the phone set terminal of this slave node and caller node, the indicator light n of the correspondence of this slave node keeps quickflashing.The indicator light n that other each slave nodes are corresponding transfers to long bright, stops ring, if this moment, off-hook was pressed caller handler.When calling out simultaneously by different conllinear passages more than a caller, minimum sequence number quickflashing in the corresponding indicator light of slave node, all the other all dodge slowly, and the user can select off-hook behind the conllinear passage by button, sets up conversation with caller in the conllinear passage of selecting.
When (2) phone set terminal of slave node was called out the phone set terminal of master node: the slave node of caller was selected lowest number (can also specify the conllinear passage by the user) in the idle conllinear passage automatically, indicator light quickflashing corresponding to conllinear passage of selecting, the phone set terminal off-hook of caller the slave node i.e. phone set terminal of the master node in the conllinear passage of selecting make a call.The indicator light Chang Liang of the correspondence of every other slave station.
When (3) phone set terminal of slave node was called out the phone set terminal of other slave nodes, the caller slave node made a call to the phone set terminal of master node first, was made a call by the phone set terminal of the master node phone set terminal to other slave nodes again.
(2), when the phone interface modes of master node is the hot line pattern, the concrete mode that the method that using the embodiment of the invention provides communicates is as follows:
When (1) phone set terminal of master node is called out the phone set terminal of slave node: the phone set terminal off-hook of master node, corresponding indicator light fast blink and the ring of all on-hook slave nodes in the corresponding conllinear passage, the corresponding indicator light of non-on-hook slave node dodges prompting slowly.The phone set terminal off-hook of arbitrary slave node is then set up conversation between the phone set terminal of the phone set terminal of this slave node and master node, the corresponding indicator light of this slave node continues quickflashing.The corresponding indicator light of other each slave nodes transfers to long bright, stops ring, if this moment, off-hook was pressed caller handler.In the above-mentioned conversation, the again ring of first on-hook side is until recover ready state after the partner on-hook.
When (2) phone set terminal of slave node is called out the phone set terminal of master node, the phone set terminal of caller slave node is selected the conllinear passage by button, indicator light quickflashing corresponding to conllinear passage of selecting, the indicator light Chang Liang that every other slave node is corresponding, at this moment, the phone set terminal off-hook of caller node, then the phone set terminal ring of the master node on the corresponding conllinear passage.If the caller slave node is after 5 seconds behind the selector channel, its phone set terminal is off-hook not, and then corresponding indicator light goes out, and discharges the conllinear channel of selecting.After setting up conversation, the again ring of first on-hook side is until recover ready state after the partner on-hook.
(3), in M bar conllinear passage, the phone interface modes of the master node of some conllinear passage is common dialing mode, the phone interface modes of the master node of another part conllinear passage is the hot line pattern, the part conllinear passage that then common dialing mode is corresponding is processed according to the communication mode of above-mentioned the first scene, and part conllinear passage corresponding to hot line pattern processed according to the communication mode of above-mentioned the second scene.
The communication means that the embodiment of the invention provides specifically can be applied in the Railroad Communication System.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (7)
1. a master-slave digital collinear communication system is characterized in that, comprising:
N node is by a digital link serial connection, and each node comprises at least one phone interface, is used for connecting phone set terminal, and described N is positive integer, and N 〉=2;
Multiplexing M bar conllinear passage on the described digital link has and only has a node as master node in every conllinear passage, described M is positive integer, and M 〉=1;
A described N node receives channel associated signalling in real time in each conllinear passage, and according to the channel associated signalling that receives and the current communications status in the conllinear passage of correspondence, according to predetermined state transitions algorithm, dynamically determine next communications status in the conllinear passage of correspondence, concrete: each node is according to phone interface modes information and the identity information of this node in the conllinear passage of correspondence, the selection mode branching algorithm, described phone interface modes information is the hot line pattern, common dialing mode or ceases to be busy pattern, described identity information are master node or slave node; Each node is according to the state transitions algorithm of selecting, determine this node current communications status, this node link position and next communications status corresponding to local communication event in the conllinear passage of correspondence in the conllinear passage of correspondence, described local communication event comprises: this node receives channel associated signalling, detect ringing-current, detect the phone set terminal off-hook of this node and detect the phone set terminal on-hook of this node.
2. system according to claim 1 is characterized in that, described digital link is the E1 digital link.
3. system according to claim 2 is characterized in that, described M bar conllinear passage time-division slot is multiplexing on described digital link, and 1≤M≤30.
4. the described system of any one is characterized in that according to claim 1～3, connects with annular between the described N node; Perhaps, connect with chain between the described N node.
5. the communication means in the described system of claim 1～3 any one is characterized in that, comprising:
N node receives channel associated signalling in real time in each conllinear passage;
Described N node is according to the channel associated signalling and the current communications status in the conllinear passage of correspondence that receive, according to predetermined state transitions algorithm, dynamically determine next communications status in the conllinear passage of correspondence, and according to described next communications status generation channel associated signalling, concrete: each node is according to phone interface modes information and the identity information of this node in the conllinear passage of correspondence, the selection mode branching algorithm, described phone interface modes information is the hot line pattern, common dialing mode or ceases to be busy pattern, described identity information are master node or slave node; Each node is according to the state transitions algorithm of selecting, determine this node current communications status, this node link position and next communications status corresponding to local communication event in the conllinear passage of correspondence in the conllinear passage of correspondence, described local communication event comprises: this node receives channel associated signalling, detect ringing-current, detect the phone set terminal off-hook of this node and detect the phone set terminal on-hook of this node;
A described N node sends the channel associated signalling that generates in real time in each conllinear passage.
6. method according to claim 5 is characterized in that, the method also comprises:
Master node in each conllinear passage is judged the link position of this node in the conllinear passage of correspondence according to loss of signal alarm signal LOS or loss of frame alarm signal LOF, and described link position is through node, end node or lonely node;
Slave node in each conllinear passage is judged the link position of this node in the conllinear passage of correspondence according to the channel associated signalling and loss of signal alarm signal LOS or the loss of frame alarm signal LOF that receive.
7. method according to claim 6 is characterized in that, the method also comprises:
Carry the phone interface modes of master node in the channel associated signalling that master node in each conllinear passage sends;
Slave node in each conllinear passage is according to the channel associated signalling of the master node that receives, the phone interface modes of this node of dynamic-configuration.
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| CN101014069A (en) * | 2006-09-14 | 2007-08-08 | 北京佳讯飞鸿电气有限责任公司 | Recording apparatus for dispatching communication system |
| CN102055573A (en) * | 2009-11-03 | 2011-05-11 | 大唐移动通信设备有限公司 | Method, equipment and system for processing HARQ (Hybrid Automatic Repeat reQuest) progress |
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