CN105035120A - Zone switching method - Google Patents
Zone switching method Download PDFInfo
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- CN105035120A CN105035120A CN201510368777.8A CN201510368777A CN105035120A CN 105035120 A CN105035120 A CN 105035120A CN 201510368777 A CN201510368777 A CN 201510368777A CN 105035120 A CN105035120 A CN 105035120A
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Abstract
The invention discloses a zone witching method, belongs to the technical field of train control and aims at solving the technical problem that under the condition that vehicle equipment is equipped with only one available wireless communication device, a train is low in running efficiency when passing a ZC (zone controller) border zone. The zone switching method comprises the following steps: receiving a switching command from a ground transponder, and then, determining wireless timeout time slices; in a wireless timeout time slice and within a range of current mobile authority, suspending communication with a handover ZC; in the next wireless timeout time slice, establishing communication with a takeover ZC, reporting the position of the train to the takeover ZC, and when the wireless timeout time slice is ended, suspending the communication with the takeover ZC, and saving the content of the communication with the takeover ZC; according to the content of the communication with the takeover ZC, determining next mobile authority; judging whether the current mobile authority is connected with the next mobile authority or not, and when that the current mobile authority is connected with the next mobile authority is judged, performing zone switching.
Description
Technical field
The present invention relates to Train Control Technology field, specifically, relate to a kind of region changing method.
Background technology
Along with developing rapidly of urban track traffic, obtain apply more and more widely based on radio CBTC system (CommunicationBasedTrainControl is called for short CBTC).Zone controller (ZoneController, be called for short ZC) be the kernel subsystems of CBTC system, the exact location that it is reported according to communication train takies/free time, track switch and signal state with the meter shaft of interlocking report, for the train of each communication calculates mobile authorization (MovementAuthority, be called for short MA), control safe train operation.
In longer circuit, generally can arrange multiple ZC, in train driving process, by train mutual between two zone controllers and trackside information, co-controlling train safe, at a high speed, seamlessly through the borderline region of two zone controllers, this process is called that region switches.In the present invention, the ZC that train will roll away from is called transfer ZC, and the ZC that train will sail into is called adapter ZC.
The mobile unit of existing CBTC train is generally all equipped with two available wireless communication devices, and two radio communication devices work simultaneously, mutually hot standby, is responsible for and transfers ZC and communicate that another responsiblely communicates with adapter ZC for one.Mobile unit integrates the MA that two ZC send, safety, efficiently, seamlessly by the borderline region of two ZC.
But the mobile unit of CBCT train is when only having a radio communication device available, and this radio communication device communicates with transfer ZC all the time.Stop when train enters ZC borderline region, transfer pilot steering pattern to, drive train by ZC borderline region by train operator, switch back CBTC pattern according to operating process more afterwards.In this case, train is low by the operating efficiency of ZC junctional area, increases the work capacity of train operator simultaneously, has influence on the operating efficiency of entire train or even whole piece circuit.
Summary of the invention
The object of the present invention is to provide a kind of region changing method, with solve mobile unit only have a radio communication device can when, train is by operating efficiency low technical matters during ZC borderline region.
The invention provides a kind of region changing method, the method comprises:
After receiving the switching command from ground transponder, determine wireless time-out time sheet;
In a wireless time-out time sheet and in the scope of current mobile authorization, suspend and the communication transferring ZC;
In the wireless time-out time sheet of the next one, set up the communication with adapter ZC, report train position to described adapter ZC, and at the end of this wireless time-out time sheet, suspend the communication with described adapter ZC, preserve the Content of Communication with described adapter ZC;
According to the Content of Communication with described adapter ZC, determine next mobile authorization;
Judge whether described current mobile authorization and next mobile authorization described connect, and when determining described current mobile authorization and next mobile authorization described connects, carry out region switching.
Wherein, in a wireless time-out time sheet and in the scope of current mobile authorization, when suspending the communication with transfer ZC, the method also comprises:
Preserve and described communications status and the Content of Communication transferring ZC.
Wherein, when preserving the Content of Communication with described adapter ZC, the method also comprises:
Preserve the communications status with described adapter ZC.
Wherein, judge whether described current mobile authorization and next mobile authorization described connect, and when determining described current mobile authorization and next mobile authorization described separates, the method also comprises:
S1, in a wireless time-out time sheet, according to preserved with described communications status and the Content of Communication of transferring ZC, recover and the described communication transferring ZC, train position is reported to described transfer ZC, and according to the current and described Content of Communication transferring ZC, upgrade current mobile authorization, at the end of this wireless time-out time sheet, suspend and the described communication transferring ZC, preserve and upgrade and described communications status and the Content of Communication transferring ZC;
S2, in the wireless time-out time sheet of the next one, according to communications status that is preserved and described adapter ZC and Content of Communication, recover the communication with described adapter ZC, train position is reported to described adapter ZC, and according to the Content of Communication of current and described adapter ZC, upgrade next mobile authorization, at the end of this wireless time-out time sheet, suspend the communication with described adapter ZC, preserve and upgrade and the communications status of described adapter ZC and Content of Communication;
S3, judge upgrade after current mobile authorization and upgrade after next mobile authorization whether connect, when determine the current mobile authorization after renewal and upgrade after next mobile authorization between connect time, carry out region switching; Otherwise re-execute S1 and S2.
Wherein, the method also comprises:
After entering region corresponding to described adapter ZC, stop and the described communication transferring ZC.
Wherein, described wireless time-out time sheet equal current mobile authorization lasting duration, with the smaller in the maximum communication duration of ground transponder radio communication.
Wherein, after receiving the switching command from ground transponder, before determining wireless time-out time sheet, the method also comprises:
Setting safety allowance duration.
Wherein, described wireless time-out time sheet equals the lasting duration of current mobile authorization, the difference with the smaller in the maximum communication duration of ground transponder radio communication and safety allowance duration.
Present invention offers following beneficial effect: embodiments provide a kind of region changing method, the method realizes based on the mobile unit only with an available radio communication device.This region changing method makes only radio communication device timesharing communicate with adapter ZC with transfer ZC, obtains respectively from current MA and next MA of two ZC, and when ensureing that current MA and next MA connects, carries out region switching.Train, when only there being a radio communication device, also omnidistancely can adopting CBTC pattern automatic Pilot, improve the operating efficiency of train by ZC junctional area, ensure that the operating efficiency of entire train or even whole piece circuit.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification sheets, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification sheets, claims and accompanying drawing and obtain.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, the accompanying drawing in describing is done simple introduction below to embodiment:
Fig. 1 is the schematic flow sheet one of the region changing method that the embodiment of the present invention provides;
Fig. 2 is the schematic flow sheet two of the region changing method that the embodiment of the present invention provides.
Detailed description of the invention
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application engineering means solve technical matters whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
Embodiments provide a kind of region changing method performed by the mobile unit of CBTC system, a radio communication device communicated with ZC is only had to use in this mobile unit, mean that this mobile unit only can communicate with a ZC, cannot communicate with two ZC simultaneously.Based on above-mentioned prerequisite, as shown in Figure 1, the method comprises:
Step S101, receive from ground transponder switching command after, determine wireless time-out time sheet.
Ground transponder is a kind of for the point type equipment of ground to train transmission information, is divided into fixing (passive) responser and variable (active) responser.When train is above ground transponder, after the electromagnetic energy that the mobile unit point information receiving wire that ground transponder receives train sends, electromagnetic energy is converted to working power by ground transponder, start electronic circuit work, prestoring or line side electronic machine (LinesideElectronicUnit, be called for short LEU) send message transmission circulation send, until electromagnetic energy disappear, namely train sails out of ground transponder.
In the embodiment of the present invention, the ZC being about to sail out of by train is called transfer ZC, and the ZC being about to sail into by train is called adapter ZC.The message transmission of ground transponder comprises and means that train is about to the switching command of the control area entering adapter ZC, and mobile unit can be recognized from this switching command needs which the adapter ZC of communication is.
The mobile unit of train, after receiving the switching command from ground transponder, determines that the wireless time-out time sheet that radio communication relates to, wireless time-out time sheet define mobile unit and keeping under the prerequisite communicated with ZC, can suspend the maximum duration of communication.As long as the communication of mobile unit and ZC suspends duration be less than or equal to wireless time-out time sheet, mobile unit just can connect at any time and suspend communicate front and ZC communications status, Content of Communication, continues the communication with ZC.
Step S102, in a wireless time-out time sheet and in the scope of current mobile authorization, suspend and transfer the communication of ZC.
When train travels in the region of transferring ZC, remaining with the communication transferring ZC, providing the relevant informations such as train position to transferring ZC, transferring ZC will be that train calculates MA according to the status information of train position and circuitry obstacle thing and interlocking situation, is called current MA in the embodiment of the present invention by transferring the MA that ZC calculates.MA is that train safe travels to a duly authorized needed for next stop position, and the personal distance realizing train controls.Train safe spacing distance calculates according to information such as the maximum permission speed of a motor vehicle, current waypoint location, circuits, and information is refreshed by dynamic circulation.
In order to ensure that train is after mobile unit suspends and transfers the communication of ZC, still can continuous running a period of time, in conjunction with above to the definition of wireless time-out time sheet, the wireless time-out time sheet in the embodiment of the present invention should be less than or equal to the lasting duration of current mobile authorization.Therefore, in embodiments of the present invention, wireless time-out time sheet equal current mobile authorization lasting duration, with the smaller of the maximum communication duration of the ground transponder radio communication maximum lasting duration of ground transponder radio communication (namely with) in both.Under this prerequisite, the mobile unit of train suspends and the communication transferring ZC, in order to can recover after communication suspends and continue and the communication transferring ZC, suspends while communicating with transfer ZC, needs to preserve and communications status and the Content of Communication of transferring ZC.Mobile unit can be set up and the tdm communication transferring ZC and adapter ZC based on wireless time-out time sheet, realization only have a radio communication device available time, also can ensure that train is efficient, seamless, carry out region switching safely.
Step S103, in the wireless time-out time sheet of the next one, to set up and the communication of adapter ZC, report train position to adapter ZC, and at the end of this wireless time-out time sheet, suspend the communication with adapter ZC, the Content of Communication of preservation and adapter ZC.
The mobile unit of train, after time-out with the communication of transfer ZC, starts to set up the communication with adapter ZC immediately, now starts the timing of next wireless time-out time sheet.
Train, when communicating with adapter ZC, submits the relevant informations such as train position to adapter ZC equally.Similar with transfer ZC, adapter ZC will be train calculating MA according to the status information of train position and circuitry obstacle thing and interlocking situation.In the embodiment of the present invention, the MA that adapter ZC calculates is called next MA.
At the end of this wireless time-out time sheet, mobile unit suspends the communication with adapter ZC, preserves the Content of Communication with adapter ZC.In order to can recover afterwards at time-out and continue and the communication of adapter ZC, mobile unit communicates with adapter ZC at time-out, preserve with the Content of Communication of adapter ZC while, also need the communications status of preservation and adapter ZC.
Step S104, basis and the Content of Communication of adapter ZC, determine next mobile authorization.
The mobile unit of train according to preserve with the Content of Communication of adapter ZC, and then determine next MA that adapter ZC is corresponding.
Step S105, judging whether current mobile authorization and next mobile authorization connect, when determining current mobile authorization and next mobile authorization connects, carrying out region switching.
Due to the corresponding stretch footpath of each MA, in order to ensure train can efficient, seamless, carry out region switching safely, mobile unit needs to ensure that correspondence is transferred the current MA of ZC and connects to next MA of adapter ZC, and namely the path of current MA and next MA has the overlapping or lucky seamless connection of part.If current MA connects with next MA, the mobile unit of train just can completely form one and cross over the MA transferring ZC, enter adapter ZC, guarantees that train can pass through to transfer ZC border according to this MA successfully safely, efficiently, enters the compass of competency of adapter ZC.
After determining that train has possessed efficient, seamless, to carry out region switching safely condition, train, according to transferring ZC and adapter ZC respectively to the MA that mobile unit sends, forms the MA that is crossed over ZC border, completes safe, efficient, seamless ZC and switches.After train enters the region that adapter ZC administers, mobile unit cuts off and transfers the radio communication of ZC, only keeps the radio communication with adapter ZC, simultaneously will adapter ZC as master control ZC.In the region of adapter ZC, train remains the communication with adapter ZC, until when needing to carry out region switching next time.
Otherwise if in step S105, when determining current mobile authorization and next mobile authorization and separating, the mobile unit of train needs successively to recover and transfer communicating of ZC and adapter ZC, upgrades next MA that current MA corresponding to transfer ZC is corresponding with adapter ZC.Concrete, as shown in Figure 2, this method also comprises:
Step S201, in a wireless time-out time sheet, according to preserved communications status and Content of Communication with transferring ZC, recover and the communication transferring ZC, train position is reported to transfer ZC, and according to the current Content of Communication with transferring ZC, upgrade current MA, at the end of this wireless time-out time sheet, suspend and the communication transferring ZC, preserve and upgrade and communications status and the Content of Communication of transferring ZC.
Step S202, in the wireless time-out time sheet of the next one, according to communications status that is preserved and adapter ZC and Content of Communication, recover the communication with adapter ZC, train position is reported to adapter ZC, and according to the current Content of Communication with adapter ZC, upgrade next MA, at the end of this wireless time-out time sheet, suspend the communication with adapter ZC, preserve and upgrade and the communications status of adapter ZC and Content of Communication.
Step S203, judge upgrade after current MA and upgrade after next MA whether connect, when determine the current MA after renewal and upgrade after next MA between connect time, carry out region switching; Otherwise re-execute S201 and S202.
The ZC of CBTC system can adopt the media such as radio communication, ground cross-inductive loop wire, waveguide to mobile unit transmission of information usually.In order to ensure that the communication of mobile unit and ZC is not subject to the restriction of external condition and involuntary interrupt, in embodiments of the present invention, before determining wireless time-out time sheet, also need setting safety allowance duration.Now, wireless time-out time sheet equals the lasting duration of current mobile authorization, the difference with the smaller in the maximum communication duration of ground transponder radio communication and safety allowance duration.Safety allowance duration determines according to the factor such as telecommunication media, signalling methods of ZC and mobile unit.
Above, embodiments provide a kind of region changing method, the method realizes based on the mobile unit only with an available radio communication device.This region changing method makes only radio communication device timesharing communicate with adapter ZC with transfer ZC, obtains respectively from current MA and next MA of two ZC, and when ensureing that current MA and next MA connects, carries out region switching.Train, when only there being a radio communication device, also omnidistancely can adopting CBTC pattern automatic Pilot, improve the operating efficiency of train by ZC junctional area, ensure that the operating efficiency of entire train or even whole piece circuit.
Although embodiment disclosed in this invention is as above, the embodiment that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technical personnel in any the technical field of the invention; under the prerequisite not departing from spirit and scope disclosed in this invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (8)
1. a region changing method, is characterized in that, comprising:
After receiving the switching command from ground transponder, determine wireless time-out time sheet;
In a wireless time-out time sheet and in the scope of current mobile authorization, suspend and the communication transferring ZC;
In the wireless time-out time sheet of the next one, set up the communication with adapter ZC, report train position to described adapter ZC, and at the end of this wireless time-out time sheet, suspend the communication with described adapter ZC, preserve the Content of Communication with described adapter ZC;
According to the Content of Communication with described adapter ZC, determine next mobile authorization;
Judge whether described current mobile authorization and next mobile authorization described connect, and when determining described current mobile authorization and next mobile authorization described connects, carry out region switching.
2. method according to claim 1, is characterized in that, in a wireless time-out time sheet and in the scope of current mobile authorization, when suspending the communication with transfer ZC, also comprises:
Preserve and described communications status and the Content of Communication transferring ZC.
3. method according to claim 2, is characterized in that, when preserving the Content of Communication with described adapter ZC, also comprises:
Preserve the communications status with described adapter ZC.
4. method according to claim 3, is characterized in that, judges whether described current mobile authorization and next mobile authorization described connect, and when determining described current mobile authorization and next mobile authorization described separates, also comprise:
S1, in a wireless time-out time sheet, according to preserved with described communications status and the Content of Communication of transferring ZC, recover and the described communication transferring ZC, train position is reported to described transfer ZC, and according to the current and described Content of Communication transferring ZC, upgrade current mobile authorization, at the end of this wireless time-out time sheet, suspend and the described communication transferring ZC, preserve and upgrade and described communications status and the Content of Communication transferring ZC;
S2, in the wireless time-out time sheet of the next one, according to communications status that is preserved and described adapter ZC and Content of Communication, recover the communication with described adapter ZC, train position is reported to described adapter ZC, and according to the Content of Communication of current and described adapter ZC, upgrade next mobile authorization, at the end of this wireless time-out time sheet, suspend the communication with described adapter ZC, preserve and upgrade and the communications status of described adapter ZC and Content of Communication;
S3, judge upgrade after current mobile authorization and upgrade after next mobile authorization whether connect, when determine the current mobile authorization after renewal and upgrade after next mobile authorization connect time, carry out region switching; Otherwise re-execute S1 and S2.
5. method according to claim 4, is characterized in that, also comprises:
After entering region corresponding to described adapter ZC, stop and the described communication transferring ZC.
6. method according to claim 5, is characterized in that,
Wireless time-out time sheet equal current mobile authorization lasting duration, with the smaller in the maximum communication duration of ground transponder radio communication.
7. method according to claim 5, is characterized in that, after receiving the switching command from ground transponder, before determining wireless time-out time sheet, also comprises:
Setting safety allowance duration.
8. method according to claim 7, is characterized in that,
Wireless time-out time sheet equals the lasting duration of current mobile authorization, the difference with the smaller in the maximum communication duration of ground transponder radio communication and safety allowance duration.
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| CN109153394A (en) * | 2016-05-12 | 2019-01-04 | 株式会社京三制作所 | Ground installation |
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| CN109153394A (en) * | 2016-05-12 | 2019-01-04 | 株式会社京三制作所 | Ground installation |
| CN109153394B (en) * | 2016-05-12 | 2021-03-12 | 株式会社京三制作所 | Floor device |
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| CN107738667A (en) * | 2017-10-16 | 2018-02-27 | 交控科技股份有限公司 | The computational methods and device of CBTC system mid-spans overlay region train position |
| CN111169511A (en) * | 2018-11-21 | 2020-05-19 | 通号城市轨道交通技术有限公司 | Switching method and device for train control right under CBTC (communication based train control) system |
| CN112874577A (en) * | 2019-11-29 | 2021-06-01 | 比亚迪股份有限公司 | Train management method and system |
| CN111874044A (en) * | 2020-06-28 | 2020-11-03 | 通号城市轨道交通技术有限公司 | Method for transferring cross-region overlapping area of vehicle |
| CN111874044B (en) * | 2020-06-28 | 2022-04-19 | 通号城市轨道交通技术有限公司 | Method for transferring cross-region overlapping area of vehicle |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |