Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The pre-stored mode of transponder message in prior art that the present invention is directed to is subject to row control central store to hold quantitative limitation, make in a transponder compass of competency, only to allow to arrange place's temporary speed limitation, and in practice, speed limit starting point can not be set arbitrarily according to demand, speed limit terminal, the information such as speed limit, thereby can not meet the demand of operation maintenance, the defects such as the efficiency of operation of train are affected, it is that transponder message generates and sending method in real time that a solution is provided, row control central apparatus and Train control system, by adopting transponder message to need the technology of real-time framing according to operation, solve the demand that a transponder compass of competency arranges many places speed limits, realize any setting of temporary speed limitation starting point, temporary speed limitation terminal and speed limit, for operation maintenance and raising efficiency of operation have played good technical support.
Fig. 1 is that transponder message of the present invention generates and sending method embodiment flow chart in real time, and as shown in Figure 1, the method comprises:
Step 100, the central processing unit at Lie Kong center receives route information, selects corresponding object message template according to described route information in pre-stored several message templates; Receive temporary speed limitation information, according to temporary speed limitation package informatin in object message template described in described temporary speed limitation information change;
The route information that the central processing unit at Lie Kong center is sent according to computer interlock system, the concrete route information that judgement receives is consistent with the information in which the message template in the several message templates that are stored in advance in central processing unit physical address, and the message template that selection information is consistent obtains the object message template corresponding with the concrete route information now receiving.The temporary speed limitation information that the central processing unit at Lie Kong center is sent according to dispatching concentration system or temporary speed limitation server is changed temporary speed limitation package informatin in the object message template of previously having selected according to the route information receiving;
Particularly, information in the message template of storage comprises flag of frame in advance, link bag, gradient bag, line speed bag, track section bag, bag and temporary speed limitation bag etc. definitely stop, wherein, flag of frame, link bag, gradient bag, line speed bag, the specifying information value of track section bag and the bag that definitely stops is be stored in advance field location corresponding in each message template and immobilize in each message template, and the corresponding occurrence setting of information of these field locations in different message templates is different, and temporary speed limitation bag in message template does not arrange specifying information content in advance, go to change the information of this temporary speed limitation bag according to the speed limit order of assigning in real time.
First, the route information that the central processing unit at Lie Kong center is sent according to receiving computer interlock system finds the message template corresponding with this route information as object message template from pre-stored several message templates.Then, temporary speed limitation package informatin in the object message template that the temporary speed limitation information change that central processing unit is sent according to reception CTC/TSRS is again selected according to the route information receiving, this temporary speed limitation package informatin specifically also comprises speed limit effective length, speed limit district starting point, speed limit section length, speed limit rank and speed limit number, wherein, speed limit effective length, speed limit district starting point, speed limit section length and speed limit rank are according to the speed limit length of speed limit order indication train, speed limit rank, speed limit starting point and terminal arrange occurrence, speed limit number should arrange several places speed limit according to a transponder compass of competency of speed limit order indication occurrence is set, therefore can remove to change the temporary speed limitation package informatin in selected object message template according to real-time speed limit order.
Step 101, described central processing unit generates first user data in real time according to the described object message template of process change, and sends to the encoder at described Lie Kong center;
Step 102, described encoder generates in real time corresponding transponder message according to described first user data and returns to described central processing unit, and described central processing unit sends described transponder message to trackside electronic unit.
The encoder at Lie Kong center receives the first user data that generate in real time according to object message template of central processing unit transmission and these first user data is carried out to chnnel coding, after encoding successfully, the transponder message of generation is returned to central processing unit again, central processing unit sends to LEU by this transponder message again, sends active balise to by LEU.
The transponder message that the present embodiment provides generates with sending method in real time by need to adopt the technology of the real-time framing of transponder message according to operation, solve the problem that Liao Liekong center message is subject to memory limitations, realize assigning arbitrarily of temporary speed limitation order, improve the efficiency of railway transportation, improve the fail safe of the wireless channel transmission between transponder and mobile unit, for operation maintenance and raising efficiency of operation have played good technical support.
Based on above-described embodiment, central processing unit also comprised before object message template corresponding to selection, the step of described object message template being verified by identifying code, before message uses by it being carried out to the check code in packet storage device and the packet storage structure of decoding and redundancy, only have in the time that check word subsidiary in checking message template is effective, just think legal message template, just can choice for use.
Further, for the isotype and anomalous mode of anti-locking system is hindered and damaged message template, central processing unit is stored respectively the different message template data of two piece of data on different physical addresss, and at the treatment cycle of each software, this two piece of data is carried out to deagnostic test, monitor when inconsistent, system just starts safe handling pattern.
For clearer understand below the present embodiment illustrate for example, actual conditions, according to being specifically used for concrete setting, are not limited to this.Be exemplified below: the data that central processing unit leaves message template 3 in physical address 1 are in advance " 1101 ", deposit the different message template of a piece of data 3 " 0010 " at physical address 2 so, when two message templates all meet the check code in packet storage device and packet storage structure by decoding, the data that these two message templates are described are legal, and then the different message template data of this two piece of data of comparison, if data are not different on corresponding position, become " 0100 " such as the message template data on physical address 2 because be subject to system interference, so with physical address 1 on message template data correspondence position data not different, system just starts safe handling pattern.
The transponder message that the present embodiment provides generates with sending method in real time by measures such as the checkings to its legitimacy before use message template, realize assigning arbitrarily of temporary speed limitation order, when having improved the efficiency of railway transportation, further improved the fail safe of system.
Fig. 2 is that transponder message of the present invention generates and another embodiment flow chart of sending method in real time, and as shown in Figure 2, based on above-described embodiment, the method comprising the steps of 100 and step 101, and step 102 comprises step 102a and step 102b further,
Step 100, the central processing unit at Lie Kong center receives route information, selects corresponding object message template according to described route information in pre-stored several message templates; Receive temporary speed limitation information, according to temporary speed limitation package informatin in object message template described in described temporary speed limitation information change;
Step 101, described central processing unit generates first user data in real time according to the described object message template of process change, and sends to the encoder at described Lie Kong center;
Step 102a, described encoder is encoded to described first user data, generates in real time corresponding transponder message; And described transponder message is carried out to decoding, generate the second user data;
The encoder at Lie Kong center receives the first user data that generate in real time according to object message template of central processing unit transmission and these first user data is carried out generating corresponding transponder message after chnnel coding; Encoder generates after corresponding transponder message, and again this transponder message is carried out to decoding, and reduction generates the second corresponding user data;
Step 102b, described transponder message and described the second user data are sent to described central processing unit by described encoder, described central processing unit contrasts described first user data and described the second user data, if consistent, sends described transponder message to LEU.
Encoder sends to central processing unit the second user data after transponder message and decoding simultaneously, central processing unit compares the first user data that send to encoder with the second user data according to reducing after the decoding of first user data encoding that receives this encoder passback, form the closed-loop control to the real-time framing of transponder message, if central processing unit is more consistent, send described transponder message to LEU, send active balise to by LEU.
Transponder message that the present embodiment provides generates in real time and carries out closed-loop control with sending method by adopting the real-time framing technology of transponder message when, realize assigning arbitrarily of temporary speed limitation order, when having improved the efficiency of railway transportation, further improved the fail safe of system.
Based on above-described embodiment, when described encoder is encoded to described first user data, start a timer and start timing; If when described timer timing exceeds the scheduled time, described encoder not yet generates described transponder message, described encoder sends overtime mark to described central processing unit, to indicate described central processing unit that described first user data are adjusted and resend.
Encoder carries out real-time framing according to FFFIS rule to the first user data that receive, according to Europe superscript Subset-036, exist in theory certain user's data can not be become by successful code conversion the possibility of message, (be less than 10 for random data although this possibility is very low
-100); In addition some data transaction becomes the long real-time that also can affect operation time of message.Row control central apparatus is a kind of real-time control system, in order to prevent above two kinds of situations, guarantee that row control central apparatus can generate effective response device message in real time, and send to LEU, in the real-time framing process of transponder message, introduce timer, this timer carries out time registration in the time that the major cycle of cataloged procedure starts, before new circulation starts to judging the running time of present encoding process, if exceed the predefine time limit, stop coded program and return to overtime mark to central processor CPU, to indicate described CPU in described first user data, some are just easily encoded successfully after the little data of systematic influence are adjusted, and the first user data after adjusting are resend to encoder.
Fig. 3 be transponder message of the present invention generate in real time with sending method in first user data encoding is generated to transponder message flow chart in real time, specific coding flow process as shown in Figure 3,
In the present embodiment, what select is 830 message templates, and central processor CPU is issued described encoder by dual port RAM; Encoder is according to the computing of encoding of FFFIS coding rule, a coding circulation starts timing so that the scramble time is monitored while beginning, if when timer timing exceeds the scheduled time, encoder not yet generates corresponding transponder message, described encoder sends overtime mark to CPU, to indicate CPU that described first user data are adjusted and resend; If do not have overtime coding successfully to generate 1023 corresponding transponder messages, then decode according to FFFIS rule, be reduced into second user data of 830,, issue described central processing unit by dual port RAM.CPU by second user data of 830 after the reduction of receiving with send to the first user data of 830 of encoder to compare, more inconsistently think that message is illegal, re-start again coding at next cycle and calculate.
Transponder message that the present embodiment provides generates in real time with sending method and encoder is introduced to timer when adopting the real-time framing technology of transponder message, realize the duration monitoring to the real-time framing of transponder message, further improve the efficiency of system, real-time and the fail safe between transponder and mobile unit, transmitted are improved, for operation maintenance and raising efficiency of operation have played good technical support.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Fig. 4 is that the present invention is listed as control central apparatus example structure schematic diagram, as shown in Figure 4, this row control central apparatus comprises central processing unit 41 and encoder 42, wherein, central processing unit 41 comprises the first processing module 411, the second processing module 412, the 3rd processing module 413 and the 4th processing module 414.
Wherein, the first processing module 411, for receiving described route information, is selected corresponding object message template according to described route information in pre-stored several message templates; The second processing module 412 is for receiving temporary speed limitation information, according to temporary speed limitation package informatin in object message template described in described temporary speed limitation information change; The 3rd processing module 413 generates described first user data in real time for the described object message template of changing according to process, and sends to the encoder at described Lie Kong center; Encoder 42 returns to described central processing unit for generate in real time corresponding described transponder message according to described first user data; The 4th processing module 414 is for sending the transponder message that described encoder returns to trackside electronic unit.
Particularly, information in the message template of storage comprises flag of frame in advance, link bag, gradient bag, line speed bag, track section bag, bag and temporary speed limitation bag etc. definitely stop, wherein, flag of frame, link bag, gradient bag, line speed bag, the specifying information value of track section bag and the bag that definitely stops is be stored in advance field location corresponding in each message template and immobilize in each message template, and the corresponding occurrence setting of information of these field locations in different message templates is different, and temporary speed limitation bag in message template does not arrange specifying information content in advance.
Function and the handling process of the row control central apparatus that the present embodiment provides can, referring to said method embodiment, repeat no more herein.
The row control central apparatus that the present embodiment provides is by utilizing real-time framing technology to generate and transponder beacon message in real time, solve Liao Liekong center packet storage and hold quantitative limitation, realize assigning arbitrarily of temporary speed limitation, solve the bottleneck existing in scheduling operation management, improved the efficiency of railway transportation.
Fig. 5 is that the present invention is listed as another example structure schematic diagram of control central apparatus, as shown in Figure 5, based on above-described embodiment, this row control central apparatus comprises central processing unit 41 and encoder 42, wherein, central processing unit 41 comprises the first processing module 411, the second processing module 412, the 3rd processing module 413 and the 4th processing module 414, and further, encoder 42 also comprises the 5th processing module 421, the 6th processing module 422 and the 7th processing module 423.
Wherein, the 5th processing module 421 in encoder 42, for described first user data are encoded, generates corresponding transponder message in real time; The 6th processing module 422, for described transponder message is carried out to decoding, generates the second user data; The 7th processing module 423 is for sending to described central processing unit by described transponder message and described the second user data.
Further, the 4th processing module 414 in central processing unit 41 also comprises first module 414a and second unit 414b,
Wherein, first module 414a contrasts for described first user data and described the second user data that described encoder is sent; If second unit 414b is for knowing that by described first module judgement described first user data are consistent with described the second user data, send described transponder message to trackside electronic unit.
The row control central apparatus that the present embodiment provides carries out closed-loop control by utilizing the real-time framing technology of transponder message when, solve Liao Liekong center packet storage and hold quantitative limitation, realize assigning arbitrarily of temporary speed limitation, solve the bottleneck existing in scheduling operation management, the fail safe that has further improved system when having improved the efficiency of railway transportation.
Based on above-described embodiment, in described encoder, be provided with a timer, for when described encoder is encoded to described first user data, start timing; If when described timer timing exceeds the scheduled time, described encoder not yet generates described transponder message, described encoder sends overtime mark to described central processing unit, to indicate described central processing unit that described first user data are adjusted and resend.
The row control central apparatus that the present embodiment provides by introducing timer to encoder in the real-time framing technology of transponder message, realize the duration monitoring to the real-time framing of transponder message, further improve the efficiency of system, real-time and the fail safe between transponder and mobile unit, transmitted are improved, for operation maintenance and raising efficiency of operation have played good technical support.
Fig. 6 is Train control system example structure schematic diagram of the present invention, as shown in Figure 6, this Train control system comprises row control central apparatus 1, trackside electronic unit 2 and active balise 3, row control central apparatus 1 is connected by trackside electronic unit 2 with active balise 3, wherein, trackside electronic unit 2 is for forwarding the transponder message that row control central apparatus 1 sends to active balise 3.
Particularly, this Train control system also comprises computer interlock system and dispatching concentration system or temporary speed limitation server, and wherein, computer interlock system is used to described row control central apparatus that described route information is provided; Dispatching concentration system or temporary speed limitation server, be used to described row control central apparatus that described temporary speed limitation information is provided.
The row control central apparatus that wherein row control central apparatus 1 can adopt above-described embodiment to provide, described trackside electronic unit 2 and active balise 3 are trackside electronic unit and active balise related in the various embodiments described above.Concrete structure and function and the handling process of each device in the Train control system that the present embodiment provides can, referring to the embodiment of said method and row control central apparatus, repeat no more herein.
The Train control system that the present embodiment provides generates and transponder beacon message by the technology of utilizing real-time framing, solve Liao Liekong center packet storage and hold quantitative limitation, realize assigning arbitrarily of temporary speed limitation, solve the bottleneck existing in scheduling operation management, improved the efficiency of railway transportation.
Further, Fig. 7 is row control central apparatus structural representation in another embodiment of Train control system of the present invention, as shown in Figure 7, this row control central apparatus adopts two to take advantage of two to get two Safe Redundant Architecture, comprise I, II two series control central apparatus, next owner's control of normal condition, another is for subsequent use, monosystem arranges two and overlaps independently central processing unit and encoder, in I system, comprises encoder 1 and CPU1 and encoder 2 and CPU2; In II system, comprise encoder 3 and CPU3 and encoder 4 and CPU4; In monosystem, every cover central processing unit and encoder carry out respectively separately independently the real-time framing handling process of transponder message and keep synchronous, the transponder message generating after every cover central processing unit and coder processes in monosystem is compared, if comparative result is consistent, according to the secure communication protocols of standard Lie Kong center and LEU, transponder message is sent to corresponding LEU again, guaranteed the correct of transponder message, comparative result is inconsistent carries out safe handling.
The Train control system that the present embodiment provides is listed as the redundancy structure of control central apparatus and is utilized the technology of real-time framing to generate and transponder beacon message by employing, solve Liao Liekong center packet storage and hold quantitative limitation, realize assigning arbitrarily of temporary speed limitation, solve the bottleneck existing in scheduling operation management, improve the efficiency of railway transportation, also ensured the safety and stability of train control system simultaneously.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.