CN103560949B - Method for avoiding calling ring formation in dispatching command system - Google Patents

Abstract

The invention discloses a method for avoiding calling ring formation in a dispatching command system. The method comprises the following steps that whether calling ring formation detecting is carried out or not is judged after a calling request is received; if not, the calling is finished normally; if yes, calling identification is generated according to the calling request, and whether the calling identification exists in a calling record chart or not is judged, wherein if the calling identification count value is larger than the calling threshold, calling ring formation is decided and then is released, and if the calling identification count value is smaller than or equal to the calling threshold, the normal calling processing is carried out. Whether the calling ring formation is carried out or not is judged by detecting the repeated calling times, the ring formation calling is released, the problem of calling ring formation is solved, a transit route is effectively prevented from being blocked, and the whole dispatching communication command system can work normally.

Description

A kind of method avoiding calling cyclization in dispatching and command system

Technical field

The present invention relates to a kind of method avoiding calling cyclization in dispatching and command system, belong to dispatching communication technology neck Domain.

Background technology

With the development of communication technology, it is widely applied in dispatching and command system in rail traffic and transportation system.Adjust Degree command system, as the important infrastructure of transportation command, is that punctual, the safe operation of train provides effective guarantee Means, play vital effect to transportation command and safety in production.In order to improve the reliability of whole dispatching and command system, Two bi-directional relaying routes: direct junction route and alternative routing route can be set between control centre and each station.Work as scheduling When Single Point of Faliure in transistroute between center and each station, the dispatcher of control centre can call the on duty of each station Member, issues traffic order.

Fig. 1 is the ring communications network of Railway Area Scheduling Communication System.The dispatcher of control centre calls the person on duty at station 1 When, can the direct junction between selection scheduling center and station 1 route first；If direct junction route breaks down, reselection Alternative routing route, roundabout through station n, arrives station 1 again finally by station 2.Person on duty's call scheduling center when station 1 During dispatcher, system can select the direct junction between station 1 and control centre to route first；If direct junction route occurs Fault, reselection alternative routing route, roundabout through station 2, arrives control centre again finally by station n.Although above-mentioned networking side Formula improves the call successful rate of whole dispatching communications subsystem, but if there is a problem in that control centre calling station 1 Person on duty, the direct junction route between control centre and station 1 breaks down, and calling gets to the station 2 through alternative routing route； Because the direct junction route between station 2 and station 1 also breaks down, calling returns to control centre through alternate path again； Control centre can initiate the calling at station 1 automatically again, arises that calling cyclization.Calling cyclization not only increases communication network On telephone traffic, its direct result can lead to that Route Blocking, percent of call completed be low, service quality of communication network declines.In extreme case Under, whole dispatching and command system paralysis can be made.Therefore, solve calling cyclization, avoid transistroute obstruction to be that existing scheduling refers to System of waving major issue urgently to be resolved hurrily.

Content of the invention

For the deficiencies in the prior art, the technical problem to be solved is to provide one kind in dispatching and command system In avoid call cyclization method.

For realizing above-mentioned goal of the invention, the present invention is using following technical schemes:

A kind of method avoiding calling cyclization in dispatching and command system, comprises the steps:

Step 1, receives call request, and reads configuration parameter and judge whether to call cyclization detection；If not checking, Normal call；Otherwise, execution step 2；

Whether step 2, generate call identification according to call request, and judge described call identification in calling record list: If existing, call meter adds 1, and judges the size of count value and calling cyclization threshold value: if count value is less than or equal to exhaling It is cyclization threshold value, preserve calling to the call queue of this call identification；Otherwise call release, initialisation calls log tie Bundle；

If not existing, call identification is preserved to calling record list, and call meter is set to 1, preserve calling Call queue to this call identification；

Step 3, initialisation calls log terminating after access success；Call failure then directly terminates.

Wherein more preferably, described configuration parameter includes calling cyclization detected value and described calling cyclization threshold value.

Wherein more preferably, described call identification includes calling number and called number.

Wherein more preferably, described calling record list includes described call identification, described call meter and described calling team Row.

Wherein more preferably, described initialisation calls log comprises the following steps:

Discharge the all-calls in the call queue of described call identification；

Initialize the call meter of described call identification；

Described call identification is deleted from calling record list.

The present invention passes through detection and repeats the number of calls, judges active calls whether cyclization.For the calling of cyclization, by once Release.Can solve the problems, such as to call cyclization by this method, be prevented effectively from transistroute and occur blocking it is ensured that whole scheduling is logical The normal operation of letter command system.

Brief description

Fig. 1 is the ring communications network figure of Railway Area Scheduling Communication System；

Fig. 2 is the flow chart avoiding and calling cyclization method provided by the present invention.

Specific embodiment

The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

The present invention provides a kind of method avoiding in dispatching and command system and calling cyclization, repeats calling time by detection Number, when repeating the number of calls more than the calling cyclization thresholding setting, this calling will be released, thus solving to call cyclization Problem.Below by specific embodiment, the concrete steps of the method are described in detail, referring to Fig. 2.

Step 1, dispatcher initiates call request to Platform attendant.

Step 2, control centre receives call request and gives call processing module to process.

Step 3, call processing module reads configuration parameter and judges whether to call cyclization detection；If detection, execution Step 4, otherwise, execution step 10.

Calling cyclization detection	0 for not detecting, 1 is detection
		Calling cyclization thresholding	3

The system configuration parameter of table 1 control centre

Table 1 is the system configuration parameter of control centre, and it includes calling cyclization detection, the configuration of calling cyclization thresholding.Its In, calling cyclization detects to be divided into and does not detect and detect both of which, its parameter value is respectively 0 and 1, parameter value in the case of acquiescence For 1.If calling cyclization detection parameter configuration is 0, normal call Platform attendant；If parameter configuration is 1, by following Step carry out calling cyclization detection after, then process this calling by normal call.And call cyclization thresholding for whether calling into The judgement of ring, its threshold value is defaulted as 3.

Step 4, generates call identification according to call request, and judges whether this call identification has had calling record list In.Control centre using the calling number in current call request and called number as this call identification, this call identification Count the number of times as repeating to call.After call identification generates, search for whether this call identification exists in calling record list. If active calls mark existed with calling record list in, execution step 5；If it does not exist, then execution step 6.

Call identification	Calling number, called number
		Call meter	It is initialized as 0
Call queue	Preserve the calling of same call mark

Table 2 calling record list

Table 2 is calling record list in the present invention, and it includes call identification, the count value of call meter and calling team Row.Wherein, call meter is used for the calling with same call mark is counted, and this count value is used for and calling cyclization Whether thresholding compares, judge active calls cyclization；Call queue is then used for preserving the calling with same call mark, Wait and send calling to Platform attendant.

Step 5, call meter plus 1, and judges the size of count value and calling cyclization threshold value: metering of call value is little In or be equal to calling cyclization thresholding, then execution step 7；Metering of call value is more than calling cyclization thresholding, and call release simultaneously executes step Rapid 9.By contrasting to the calling cyclization threshold value repeating the number of times and setting calling, exhale when the number of times repeating to call is more than When being cyclization threshold value, then judge active calls cyclization being released, thus effectively prevent the problem of calling cyclization.

Step 6, call identification is preserved to calling record list and call meter is set to 1, then directly execute Step 7.When call identification preserves first, call meter is set to 1 by initial value 0.

Step 7, preserves calling in the call queue of this call identification.After calling call queue, Waiting for Call station Person on duty.

Step 8, judges whether calling Platform attendant is successful: if it is successful, execution step 9；If it fails, then executing step Rapid 10.If call processing module is set as calling cyclization detection, then after calling is saved in call queue, by judging Whether this calling current is successful, to determine whether current call treatment continues.And call processing module is set as not examining Survey the situation of calling cyclization, then need not judge whether successful call Platform attendant.To be called called to station by call queue After person on duty, terminate.

Step 9, initialisation calls log..Wherein initialized step includes: removes the calling of this call identification first All-calls in queue；Secondly initialize the call meter of this call identification；Finally delete this calling from calling record list Mark.When being judged to active calls cyclization, calling record list is initialized, and stops for the process calling next time. And access success is exhaled to Platform attendant, calling record list equally carries out initialized process, to ensure that user plucks next time During machine calling, calling record list is in initial state.

Step 10, terminates.

In sum, the present invention by calling record list to caller and called between calling be identified, and will have The calling of same call mark is counted.When the calling number of repetition with same call mark is more than the calling cyclization setting During threshold value, active calls be judged as call cyclization, be released, otherwise by this calling add call queue, wait exhale to Called subscriber.Compared with prior art, the present invention can be prevented effectively from due to calling Route Blocking, the percent of call completed that cyclization causes The problems such as low, communication network service quality declines.

Above the method avoiding calling cyclization in dispatching and command system provided by the present invention is carried out specifically Bright.To those skilled in the art, on the premise of without departing substantially from true spirit to it done any aobvious and easy The change seen, all will constitute to infringement of patent right of the present invention, will undertake corresponding legal responsibility.

Claims (2)

1. a kind of method avoiding calling cyclization in dispatching and command system is it is characterised in that comprise the steps:

Step 1, control centre receives the call request that dispatcher initiates, and reads configuration parameter and judges whether to call cyclization Detection；If not checking, normal call；Otherwise, execution step 2；Wherein, described configuration parameter includes calling cyclization detected value and institute State calling cyclization threshold value；

Whether step 2, generate call identification according to call request, and judge described call identification in calling record list:

If existing, call meter adds 1, and judges the size of count value and calling cyclization threshold value: if count value is less than or waits In calling cyclization threshold value, preserve calling to the call queue of this call identification；Otherwise call release, initialisation calls log And terminate；

If not existing, call identification is preserved to calling record list, and call meter is set to 1, preserve to call to and be somebody's turn to do The call queue of call identification；Wherein,

Described call identification includes calling number and called number, and described calling record list includes described call identification, described exhales It is enumerator and described call queue；

Step 3, initialisation calls log terminating after access success；Call failure then directly terminates.

2. avoid the method calling cyclization as claimed in claim 1 it is characterised in that described initialisation calls log includes Following steps:

Discharge the all-calls in the call queue of described call identification；

Initialize the call meter of described call identification；

Described call identification is deleted from calling record list.