CN101917248A - Method, device and system for processing train control message - Google Patents
Method, device and system for processing train control message Download PDFInfo
- Publication number
- CN101917248A CN101917248A CN2010102347193A CN201010234719A CN101917248A CN 101917248 A CN101917248 A CN 101917248A CN 2010102347193 A CN2010102347193 A CN 2010102347193A CN 201010234719 A CN201010234719 A CN 201010234719A CN 101917248 A CN101917248 A CN 101917248A
- Authority
- CN
- China
- Prior art keywords
- coding
- message
- user data
- bus
- tcc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The embodiment of the invention discloses a method, a device and a system for processing a train control message. The method comprises the following steps of: framing user data in real time and coding the framed user data; and verifying the correctness of the coding by using the inverse operation decoding of the coding, wherein if the decoding is reversible, the coding is correct; if the decoding is not reversible, the coding is wrong; and packaging the coded messages which are verified correct and transmitting the messages to ground electronic equipment. A message processing flow of framing in real time, coding, verifying and sending the user data transmitted by a bus is formed. On the basis of the European railway transportation management system coding standard UNISIG SUBSET-036, the embodiment of the invention improves the real-time of the message processing flow, greatly reduces the time consumption and overcomes the shortcomings that the efficiency of transmitting a plurality of commands such as temporary speed limit command at the same road section and the like is low and constraints such as the number limit of the transmitted commands and the like in the prior art by checking the conditions in advance, setting a caching mechanism for a BCH calculation process, performing parallel operation, constructing a reverse query character table and the like.
Description
Technical field
The present invention relates to the Train Control Technology field, more particularly, relate to a kind of row control message processing method, device and system.
Background technology
The responder system of Train Control (row control) center TCC system is point type ground-Che information transmission equipment, for train control system provides ground fix information and ground real time information.Along with train efficient improves constantly, the improvement of described responder system becomes the important ring that traffic safety is improved the aspect gradually.
Existing responder system has used transponder and LEU LEU in a large number, because the message memory space very limited (maximum 1000) of described LEU equipment, the message that therefore described transponder sends needs to be stored in the TCC main frame after the establishment in advance.
In actual applications, as carry out train speed limit and dispatch, according to train speed limit dispatching command content, need from described row control central apparatus, to extract the corresponding pre-stored messages of order, if this command context is by comparison and the described message of working out in advance when consistent, could be accepted and carry out this order by row control center, otherwise will resend and compare, because dispatching commands such as temporary speed limitation have the hard and fast rule restriction, efficiency value as temporary speed limitation must be 45,60,80,120,160km/h one of them, the limiting vehicle speed distance is 200,500,1000,1500,2000,3000,4000,6000m, and the temporary speed limitation scheduling can only allow to carry out once between two websites of same course, if temporary speed limitation need be carried out in many places on same circuit, then need to issue train limit dispatching command again according to the fixed efficiency value of temporary speed limitation and in conjunction with described limiting vehicle speed distance, and send again and compare, and this moment, command message quantity increased with the exponential type data mode, thereby had had a strong impact on the efficient that order issues and the execution of related command;
In addition, the described message audit of establishment in advance of the prior art can only be undertaken by desk checking and selective examination, the loss that exists will cause dispatching command to issue and the generation of execution error even train accident, simultaneously, because the message amount of TCC is huge, existing memory device is fixed (mostly being K5B specialized hardware platform) and is realized having difficulties from technology by expanding TCC message storage resources.
Summary of the invention
In view of this, the invention provides a kind of row control message processing method, device and system,, improve the purpose that issues and carry out efficient of transponder message to realize that the message that row control bus sends is carried out real-time coding; In addition, message availability and verification accuracy have been improved.
A kind of row control message processing method is characterized in that, comprising:
User data behind the real-time framing that bus is issued is encoded according to default coding regulation, obtains coding message;
By coding message is decoded, verify the correctness of the coding result of described user data;
After proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
Present embodiment carries out message promptly to encode behind the real-time framing, and decodes and verify the correctness of coding with the inverse operation of coding, and it is reversible to decode as described, and then the explanation coding is correct, otherwise it is wrong to encode.Be issued to ground-based electronic equipment with verifying that correct coding message is packed, thereby the message handling process of the real-time framing of user data that formation issues bus, coding, checking, transmission, overcome in the prior art message and issued shortcomings such as number of times is restricted, realized the message that row control bus sends is carried out real-time coding, improved the purpose that issues and carry out efficient of transponder message.
Preferably, described bus is specially any one tunnel in the redundant each other two-way row control center TCC system host bus.
Present embodiment adopts the mode of crossing redundancy, and single channel bus failure or single channel hardware fault do not influence use, have guaranteed the availability of system.
Preferably, user data behind the described real-time framing that bus is issued is encoded according to default coding regulation and is specially: a road real-time framing of train travel information that issues in will the two-way bus of described redundancy each other, user data behind the described real-time framing is specially 830 user data, and the user data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene.
Described train travel information comprises; Train route or information such as temporarily prescribe a time limit, described 830 users are according to European Train Control System (ETCS) and Chinese train control system (CTCS) form that definition is determined to user data.
User data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene, and verify the correctness of described coding message by decoding.
In the present embodiment, described message decode procedure is the inverse operation of user data coding, and described message decode procedure is according to guaranteeing that correct message decoding step carries out, and occurs when wrong at the user data coding, decode procedure is irreversible, thereby has verified the correctness of coding message.
Preferably, described user data behind the real-time framing is specially according to European railway transport administration system coding standard UNISIG SUBSET-036 coding in the programmable gate array FPGA at the scene:
A: 830 user data sd are divided into one group by per 10, totally 83 groups, with one all add up and function replace preceding 10;
B: select 12 scrambler sb, press the sb generator polynomial to 830 message scramblings;
C: with per 10 of the data after the scrambling is one group, and tables look-up according to the predetermined word matrix and to be transformed to 11 long words;
D: select 10 finishing sign indicating number esb;
E: produce 85 bit check sign indicating number check bits;
F: condition inspection; Wherein, first condition is specially the alphabet condition, and each word of 11 should be consistent with specific alphabet.
Preferably, described processing method also comprises: before step B described 83 groups of user data are carried out the first condition inspection.
Preferably, described processing method also comprises: buffer memory BCH is at the operation result of described sd, and with the BCH of described buffer memory at the operation result of described sd as at described cb, sb, esb, the initial value of checkbits computing.
Preferably, described processing method also comprises: described BCH is specially 11 parallel-by-bit computings at the computing of described sd; Described at described cb, sb, esb, check bits computing is specially 33 parallel-by-bit computings.
Preferably, construct counter looking into when ROM table (alphabet address and Data Position exchange) is checked for condition 1,2,4 and use, table look-up the cycle, play the effect of coding speed-raising with minimizing.
Above execution mode is on European railway transport administration system coding standard UNISIG SUBSET-036 basis, by condition inspection in advance, BCH computational process caching mechanism and concurrent operation are set, and structure oppositely the alphabetic(al) mode of inquiry make that this message handling process is real-time and consuming timely significantly reduce, and message decoding proof procedure accuracy height has overcome in the prior art a plurality of inefficiencies that issue of order such as same highway section temporary speed limitation and has had order to issue the shortcoming of constraints such as number restriction.
Preferably, described with described coding message according to preset protocol packing and be sent to ground-based electronic equipment and be specially: with described coding message according to the FSFB/2 protocol packing and be sent to ground-based electronic equipment.
Preferably, described processing method also comprises: the correctness of periodic survey frame check user data, and transmission synchronization frame verification communication sequential reaches the correctness of the sequential of electronic equipment transmission message earthward.
In the present embodiment mode, the correctness of user data is in first road check that the user data behind the real-time framing is encoded, and as finding that user data does not meet coding requirement, the user data behind the then real-time framing is codified not, turn back to bus, handle by bus.
Preferably, described processing method also comprises: verify that with the encoding state and the decoding of record the result is sent to the TCC system host synchronizing cycle that according to the cycle is the TCC main frame.
In the present embodiment, the user data treatment state is back to the accuracy that main frame has guaranteed that message is handled according to predetermined period.
Preferably, described processing method also comprises: encode overtime or user data can not compile the time when user data, the TCC main frame sends the indication of whether revising described 830 user data and recompile according to encoding state that returns and decoding checking result.
Preferably, described processing method also comprises: with the key variables backup of the coding of described user data, with the anti-storage of the key variables of backup and with described key variables comparison checking key variables correctness.
Preferably, described processing method also comprises: the key variables backup when described coding message is decoded, compare checking key variables correctness with the anti-storage of the key variables of backup and with described key variables.
This execution mode utilizes the backup variable and the former key variables of anti-storage to compare the backup of the key variables in the decode procedure of the cataloged procedure of user data and coding message, thereby further improves the coding accuracy of user data.
Preferably, described processing method also comprises: the described decode procedure that coding message is carried out is repeated, obtain the secondary decoded result, compare decoded result twice, when twice decoded result identical, determine that then proving correctness passes through, described coding message according to the preset protocol packing and be sent to ground-based electronic equipment LEU, otherwise is back to described TCC main frame.
A kind of row control message process device comprises:
The message receiving interface is used to receive the user data behind the real-time framing that bus issues;
Coding unit is used for the user data behind the described real-time framing is encoded according to default coding regulation, obtains coding message;
Decoding unit is used for coding message is decoded, and verifies the correctness of the coding result of described user data;
CPU is used to regulate and control the message processing procedure of described processing unit;
The message transmission interface is used for after proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
Preferably, described bus is specially any one tunnel in the redundant each other two-way row control center TCC system host bus.
Preferably, described coding unit is specially the on-site programmable gate array FPGA module.
A kind of row control message handling system comprises TCC main frame and bus structures, and described bus structures comprise multiple bus, comprising: be arranged at the row control message process device of the communications interface unit of described TCC main frame, described row control message process device comprises:
The message receiving interface is used to receive the user data behind the real-time framing that bus issues;
Coding unit is used for the user data behind the described real-time framing is encoded according to default coding regulation, obtains coding message;
Decoding unit is used for coding message is decoded, and verifies the correctness of the coding result of described user data;
CPU is used to regulate and control the message processing procedure of described processing unit;
The message transmission interface is used for after proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
Preferably, described row control message process device adopts crossing redundancy to be connected with described TCC main frame: the first row control message process device, first bus interface is connected with first bus of described TCC main frame, and second bus interface is connected with the 3rd bus of described TCC main frame;
Secondary series control message process device first bus interface is connected with second bus of described TCC main frame, and second bus interface is connected with the 3rd bus of described TCC main frame.
Preferably, described row control message process device is specially the message coding plate.
From above-mentioned technical scheme as can be seen, the embodiment of the invention is that user data is carried out promptly encoding behind the real-time framing, and decodes and verify the correctness of coding with the inverse operation of coding, and it is reversible to decode as described, and then the explanation coding is correct, otherwise it is wrong to encode.Be issued to ground-based electronic equipment with verifying that correct coding message is packed, thereby form the real-time framing of user data that bus is issued, coding, checking, the message handling process that sends, and, the embodiment of the invention is on European railway transport administration system coding standard UNISIG SUBSET-036 basis, by condition inspection in advance, BCH computational process is provided with caching mechanism and concurrent operation, and structure oppositely the alphabetic(al) mode of inquiry make that this message handling process is real-time and consuming timely significantly reduce, and message decoding proof procedure accuracy height, overcome in the prior art a plurality of inefficiencies that issue of order such as same highway section temporary speed limitation and had order to issue the shortcoming of constraints such as number restriction, realized the message that row control bus sends is carried out real-time coding, that improves the transponder message issues and carries out efficient, and breaks the purpose that the limitation of a temporary speed limitation order can only be carried out in same highway section;
In addition, the embodiment of the invention adopts communication verified users data to guarantee the original message accuracy; Employing verifies that with user data encoding state and decoding the result is sent to the TCC main frame, the anti-storage of coding computing variable compared the accuracy that mode verification multiple checks such as reaching repeatedly decoding has improved data, perfect verification scheme and message error mechanism is provided, guaranteed the message reliability.
Simultaneously, because the inventive method adopts the mode of real-time coding, need not a large amount of storages TCC messages of establishment in advance, it is limited and store the shortcoming of working out message in advance and being difficult to verify maintenance to have solved TCC host stores space.
The embodiment of the invention discloses a kind of row control message process device and system simultaneously, and described device is corresponding with described row control message processing method, and described system adopts the crossing redundancy bus structures, has guaranteed the availability of the message that bus issues.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 a is the disclosed a kind of row control message processing method flow chart of the embodiment of the invention;
Fig. 1 b is the disclosed a kind of format of user data schematic diagram that is listed as behind the real-time framing that issues of control bus of the embodiment of the invention;
Fig. 1 c is the disclosed a kind of row control user data cataloged procedure schematic diagram of the embodiment of the invention;
Fig. 2 is the disclosed a kind of row control message processing method flow chart of further embodiment of this invention;
Fig. 3 is the disclosed a kind of row control message processing method flow chart of further embodiment of this invention;
Fig. 4 a is the disclosed a kind of row control message process device structural representation of further embodiment of this invention;
Fig. 4 b is the disclosed a kind of row control message process device coding implementation structure schematic diagram of further embodiment of this invention;
Fig. 5 is the disclosed a kind of row control message handling system structural representation of the embodiment of the invention.
Embodiment
For quote and know for the purpose of, hereinafter the technical term of Shi Yonging, write a Chinese character in simplified form or abridge and be summarized as follows:
LEU:Line Side Dlectric Unit, LEU, the important trackside signal facility of contemporary railway;
TCC:Train Control Center, row control center, station;
FPGA:Field-Programmable Gate Array, i.e. field programmable gate array;
FSFB/2:Fail Safe Field Bus second generation, be a communication protocol, it mainly is divided into two-layer: safe floor and application layer, wherein, described safe floor can be realized on a common data link layer, it is used at an open transmission system transfer of security data, and the service that described application layer utilizes safe floor to provide realizes data exchanging function;
UNISIG SUBSET-036: the European Train Control System transponder user data coding criterion of European ATP standard;
SRAM:Static RAM has the internal memory of static access facility, does not need refresh circuit can preserve the data of its storage inside;
RS422 driver: the driver that meets the electrical characteristic RS422 of balanced voltage digital interface circuit;
CRC16:16 position cyclic redundancy check (CRC);
LSR:Linear Shift Register, linear shift register.
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 the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
What needs were at first clear and definite is:
Row are controlled message: TELEGRAM, refer to that herein long code is 1023 by the message of the suitable of European railway transport administration system coding standard UNISIG SUBSET-036 code requirement generation with Train Control transmission use, and short code is 341.
User data: USER DATA, the initial data before not encoding, according to the regulation of UNISIG SUBSET-036, the long code initial data is 830, the short code initial data is 210.The package that the form of user data defines by Europe and Chinese application of principle closes and forms, and comprises information such as the gradient, speed, track section, link, temporary speed limitation.
Coding message: ENCODED TELEGRAM, coding back message refers in particular to the message after this device is according to UNISIG SUBSET-036 code requirement coding herein, is row control message (TELEGRAM) after empirical tests is errorless.
The invention provides a kind of row control message processing method, device and system,, improve the purpose that issues and carry out efficient of transponder message to realize that the message that row control bus sends is carried out real-time coding.
Fig. 1 a shows a kind of row control message processing method, comprising:
Step 101: the user data behind the real-time framing that bus is issued is encoded according to default coding regulation, obtains coding message;
Step 102:, verify the correctness of the coding result of described user data by coding message is decoded;
Step 103: after proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
In the present embodiment, user data behind the described real-time framing that bus is issued is encoded according to default coding regulation and is specially: a road real-time framing of train travel information that issues in will the two-way bus of described redundancy each other, user data behind the described real-time framing is specially 830 user data, wherein, described train travel information comprises; Information such as train route or temporary speed limitation, described 830 users are according to the definite subscriber data set number of European railway transport administration system.
It is described by coding message is decoded, the correctness of verifying the coding result of described user data is specially: the user data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene, and verify the correctness of described user data fgs encoder message by decoding.
Shown in Fig. 1 b, the format of user data behind the real-time framing that row control bus issues comprises:
Sd, user data;
Cb, control code;
Sb: scrambler, generator polynomial: h (x)=x32+x31+x30+x29+x27+x25+1;
Esb: finishing sign indicating number, additional correction data bit;
Check bits: check code, by the 85 bit check sign indicating numbers that calculate;
Fig. 1 c shows row control user data cataloged procedure, comprising:
Step 1021: 830 user data are divided into one group by per 10, with one all add up and function replace preceding 10;
Step 1022: described 83 groups of user data are carried out the first condition inspection;
Sd partly is 83 11 words (long code) or 21 11 words (short code), described sb and esb are being carried out next step has just carried out condition 1 in advance before adding processing inspection, and carry out giving tacit consent to and can passing through when condition 1 is checked at need, to reduce 83 (long code)/21 (short code) clock cycle, only need be to cb, sb, esb, check bits part executive condition 1 is checked, the condition 1 check clock of each coding reduces to 10 clock cycle, carries out this step original 10/93=11% (long code)/10/31=32% that shortens to consuming time;
Similarly, cb and sb form 11 words, sb and esb form 11 words, can be before adding scrambler in advance executive condition 1 check, the predetermined word matrix is 1024 and replaces word (11 words), therefore alphabetic(al) illegal alphabetical ratio is: 1024/2^11=50%, be cb and sb, and, sb and esb obtain being eliminated in advance and need not enter the ratio in scrambler stage and be in probability calculation: 50% * 50%=25%, statistically see, this step can reduce scrambler number of times 75%, and the time after this method is quickened of promptly adopting shortens to 25% again on the basis that preamble quickens.
Therefore the acceleration effect of this step totally is: 11%*25%=2.75% (long code)/32% * 25% (short code)=8%.
Step 1023: select 12 scrambler sb, press the sb generator polynomial to 830 bit data scramblings;
Step 1024: with per 10 of the data after the scrambling is one group, and tables look-up by the predetermined word matrix and to be transformed to 11 long words;
Step 1025: select 10 finishing sign indicating number esb;
Step 1026: produce 85 bit check sign indicating number check bits.
What this step embodied is BCH computational process, in the present invention, the calculation procedure of BCH is divided into BCH1 and BCH2, and with the operation result buffer memory of described BCH1, as the initial value that BCH2 calculates, wherein, described BCH1 is the computing of BCH at described sd; Described BCH2 is at described cb, sb, esb, check bits computing.
According to UNISIG SUBSET-036 coding rule, because cb, the variation of sb will cause carrying out again of BCH1; The variation of esb only can cause BCH2 to carry out again, and the result of BCH1 is constant, is BCH1 and BCH2 by BCH is taken apart, when changing esb, does not need to carry out once more BCH1, directly takes out the initial value of the buffering result of BCH1 as BCH2 calculating.
Further, BCH computational process is divided into BCH1 and two steps of BCH2, and from length data computing formula, when using FPGA hardware to realize, conventional method is to use the be shifted mode of XOR of LSR to carry out, and each clock cycle is calculated 1.Calculate a BCH and need 1023-85=938 (length)/individual clock cycle of 341-85=256 (weak point).Because each esb that revises, sb all needs to calculate BCH, the accumulative total clock cycle of BCH is: 938 * 2^22 (length)/256 * 2^^22 (weak point), clock periodicity is very big, though can reduce certain clock periodicity by said method, then can reach the technique effect of speech coding process in conjunction with following mode:
Because BCH1 is far smaller than BCH2 by calculation times in efficient coding process, BCH1 has partly adopted 11 parallel-by-bit computings; It is higher that BCH2 is used frequency, and expression formula lacks (input has only 99), adopted parallel 33 larger parallel-by-bit circuit.In the present embodiment, adopt 11 parallel-by-bit computings (because the total bit 924 (long code)/242 (short code) of sd and cb all can be divided exactly by 11) among the BCH1, adopting 3 11 (promptly 33) concurrent operation circuit (this part is 99 long code and short code, can be divided exactly by 33) to quicken multiple in BCH2 is respectively: the acceleration multiple of 11 BCH1 is: the 11-1=10 times of acceleration multiple with 33 BCH2 is: 33-1=32 doubly.
To sum up, carry out BCH1 and needed for 83 individual clock cycle of (long code)/21 (short code), carry out BCH2 and need 3 clock cycle, all carry out whole BCH computing if revised esb at every turn, then needed for 86 individual clock cycle of (long code)/24 (short code), only need 3 clock cycle after adopting the method, speed-up ratio is respectively and is 3/86=10% (long code)/3/24=12.5% (short code).
Step 1027: condition inspection.
Condition in the condition inspection of above-mentioned steps 1027 need satisfy:
Condition 1: the alphabet condition, each word of 11 should be consistent with specific alphabet;
Condition 2: depart from analysis condition synchronously, when departing from one, the code word of matching word matrix condition can not surpass 2 at most continuously, and under other situation, long message at most can not be above 10;
Condition 3: Hamming distance inspection;
Condition 4: leak and take a sample to check.
Need to prove: in execution in step 1024 conversion and condition 1,2, all need to use predetermined word matrix (UNISIG SUBSET-036 alphabet) in the 4 inspection steps, in the present invention, construct a use when just looking into ROM table for execution in step 1024, construct again when the anti-ROM of a looking into table (alphabet address and Data Position exchange) is checked for condition 1,2,4 and use.
This kind just looked into alphabet and instead looked into alphabetic(al) execution mode and can greatly reduce the cycle of tabling look-up: just table look-up if all use, the cycle of tabling look-up is (table look-up with common dichotomy and be example): 2^n=1204, n=10, promptly on average looking into once the clock periodicity of table on the statistics is 10, after adopting counter tabling look-up, periodicity is fixed as 1 (selecting table address promptly to go out data), and the acceleration multiple in this step is: 10-1=9 doubly.
The embodiment of the invention is that user data is carried out promptly encoding behind the real-time framing, and decodes and verify the correctness of coding with the inverse operation of coding, and it is reversible to decode as described, and then the explanation coding is correct, otherwise it is wrong to encode.Be issued to ground-based electronic equipment with verifying that correct coding message is packed, thereby form the real-time framing of user data that bus is issued, coding, checking, the message handling process that sends, in the present embodiment, what is more important: the embodiment of the invention is on European railway transport administration system coding standard UNISIG SUBSET-036 basis, by condition inspection in advance, BCH computational process is provided with caching mechanism and concurrent operation, and structure oppositely the alphabetic(al) mode of inquiry make that this message handling process is real-time and consuming timely significantly reduce, and message decoding proof procedure accuracy height has overcome in the prior art a plurality of inefficiencies that issue of order such as same highway section temporary speed limitation and has had order to issue the shortcoming of constraints such as number restriction.
Fig. 2 shows another row control message processing method, comprising:
Step 201: with a road real-time framing of train travel information that issues in the two-way bus of described redundancy each other;
User data behind the described real-time framing is specially 830 user data;
Step 202: the correctness of periodic survey frame check user data, and transmission synchronization frame verification communication sequential reaches the correctness of the sequential of electronic equipment transmission message earthward; If correct, then carry out step 203; Otherwise return to the TCC main frame;
In the present embodiment mode, the correctness of user data is first road check that the user data behind the real-time framing is being encoded, as find that user data does not meet coding requirement, the user data behind the then real-time framing can not be utilized and be encoded, and is back to bus.
Step 203: the user data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene;
Step 204:, verify the correctness of the coding result of described user data by coding message is decoded;
In the present embodiment, described message decode procedure is the inverse operation of user data coding, and described message decode procedure is according to guaranteeing that correct message decoding step carries out, and occurs when wrong at the user data coding, decode procedure is irreversible, thereby has verified the correctness of user data cataloged procedure.
Step 205: with described coding message according to the FSFB/2 protocol packing and be sent to ground-based electronic equipment;
Step 206: be sent to TCC system host with the encoding state and the decoding checking result of record the synchronizing cycle that according to the cycle is the TCC main frame.
In the present embodiment, the message treatment state is back to the accuracy that main frame has guaranteed that message is handled according to predetermined period.
Need to prove that in the present embodiment, described bus is specially any one tunnel in the redundant each other two-way row control center TCC system host bus; Present embodiment adopts the mode of crossing redundancy, and single channel bus failure or single channel encoding board hardware fault do not influence use, have guaranteed the availability of system.
In the present embodiment, the message handling process that bus issues is real-time and consuming time few, message decoding proof procedure accuracy height, not only overcome in the prior art a plurality of inefficiencies that issue of order such as same highway section temporary speed limitation and had order to issue the shortcoming of constraints such as number restriction, and realized the message that row control bus sends is carried out real-time coding, that improves the transponder message issues and carries out efficient, and breaks the purpose that the limitation of a temporary speed limitation order can only be carried out in same highway section; The embodiment of the invention adopts communication verified users data to guarantee the original message accuracy in addition; Employing is sent to the reliability that the TCC main frame has been guaranteed user data with user data encoding state and decoding checking result.
Fig. 3 shows another row control message processing method, comprising:
Step 301: with a road real-time framing of train travel information that issues in the two-way bus of described redundancy each other;
User data behind the described real-time framing is specially 830 user data;
Step 302: the correctness of periodic survey frame check user data, and transmission synchronization frame verification communication sequential reaches the correctness of the sequential of electronic equipment transmission message earthward; If correct, then carry out step 303; Otherwise return to the TCC main frame;
Step 303: judge that whether described user data can encode, and as compiling, then carry out step 304; When user data is encoded overtime or user data can not compile the time, described message is back to the TCC main frame, and the TCC main frame sends the message of whether revising described 830 user's data users and the indication of recompile according to the encoding state that returns and decoding checking result.
Step 304: the user data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene.
In the present embodiment, in the described cataloged procedure, need the key variables of described coding are backed up, verify the key variables correctness with the anti-storage of the key variables of backup and with described key variables comparison.
Step 305:, verify the correctness of the coding result of described user data by coding message is decoded;
In the present embodiment, need the key variables of described decoding are backed up, verify the key variables correctness with the anti-storage of the key variables of backup and with described key variables comparison, further, the described decode procedure that coding message is carried out is repeated, obtain the secondary decoded result; Compare decoded result twice, when twice decoded result is consistent, determine that then proving correctness passes through; Otherwise be back to described TCC main frame.
Step 306: with described coding message according to the FSFB/2 protocol packing and be sent to ground-based electronic equipment;
Step 307: be sent to TCC system host with the encoding state and the decoding checking result of record the synchronizing cycle that according to the cycle is the TCC main frame.
Step 307 need to prove, in the present embodiment, described bus is specially any a tunnel in the each other redundant two-way row control center TCC system host bus, and present embodiment adopts the mode of crossing redundancy, monobus fault or single channel encoding board fault do not influence use, guarantee the availability of system.
In the present embodiment, the anti-storage of coding computing variable compared the accuracy that mode verification multiple checks such as reaching repeatedly decoding has improved data, and perfect verification scheme and message error mechanism is provided, and guaranteed the message reliability.
Fig. 4 a shows a kind of row control message process device structure, comprising:
Decoding unit 403 is used for coding message is decoded, and verifies the correctness of the coding result of described user data;
Need to prove: described bus is specially any a tunnel in the each other redundant two-way row control center TCC system host bus, and described coding unit is specially the on-site programmable gate array FPGA module;
Undoubtedly, also be connected with the SRAM of save routine with described CPU; The critical data district of this SRAM all uses CRC16 to protect.
Fig. 4 b is a kind of row control message process device coding implementation structure, and in conjunction with Fig. 1 b and the described coding process description of Fig. 1 c, this coding realizes that hardware configuration comprises:
Lead-in is replaced: first 10 words of user data are added up and replace.
Condition 1 is in advance checked: described 83 groups of user data are carried out first condition (condition 1) inspection;
INC_SB/ESB: sb and esb are carried out from increasing and test condition 1.
Scrambling: to of the LSR compilation scrambling of user bit stream by 32.
10-11 replaces: use substitution table to carry out the replacement of 10 word to 11 words the user bit after the scrambling.
BCH: 85 bit check sign indicating numbers of calculated data stream are placed on the last of data flow, and the calculation procedure with BCH in this step is divided into BCH1 and BCH2, and with the operation result buffer memory of described BCH1, the initial value that calculates as BCH2; And described BCH is specially 11 parallel-by-bit computings at the computing of described sd; Described at described cb, sb, esb, check bits computing is specially 33 parallel-by-bit computings.
Condition filter 1～4: the data flow that above step forms is carried out the condition inspection, check that underproof message passes through the INC_SB/ESB module and replaces scramble bits and expansion scramble bits, repeat coding, up to passing through 4 all condition inspections.
Need to prove: the condition in the condition inspection need satisfy:
Condition 1: alphabet condition: each word of 11 should be consistent with specific alphabet;
Condition 2: depart from analysis condition synchronously, when departing from one, the code word of matching word matrix condition at most can not be above 2 continuously; Under other situation, long message at most can not be above 10;
Condition 3: Hamming distance inspection;
Condition 4: leak and take a sample to check.
Fig. 5 shows a kind of row control message handling system, comprise: TCC main frame 501 and bus structures, described bus structures comprise: first bus 5021, second bus 5022, the 3rd bus 5023, be arranged at the row control message process device 503 of the communications interface unit of described TCC main frame 501, described row control message process device 503 comprises:
The message receiving interface comprises the user data after first bus interface 50311 and second bus interface 50312 are used to receive the real-time framing that bus issues;
Coding unit is used for the user data behind the described real-time framing is encoded according to default coding regulation, obtains coding message; Decoding unit is used for coding message is decoded, and verifies the correctness of the coding result of described user data, and in the present embodiment, coding unit and decoding unit are coupled as FPGA module 5032;
It needs to be noted: there is shown two identical row control message process devices, and one of them is indicated in detail and illustrate, another repeats no more, it is clear to reach for convenience, indicating the first row control message process device is 503, secondary series control message process device is 504, wherein:
As shown in the figure, described first row control message process device 503 and described secondary series control message process device 504 adopt crossing redundancy to be connected with described TCC main frame 501: the first row control message process device, first bus interface 50311 is connected 5021, the second bus interface 50312 and is connected with the 3rd bus 5023 of described TCC main frame 501 with first bus of described TCC main frame;
Secondary series control message process device 504 first bus interface 50411 are connected 5022, the second bus interface 50412 and are connected with the 3rd bus 5024 of described TCC main frame 501 with second bus of described TCC main frame 501.
Described row control message process device is specially the message coding plate, can realize that certainly the hardware unit that the present invention invents intention all is the claimed scopes of present specification.
Need to prove: in the native system, in order to guarantee the correctness of user data Code And Decode, the synchronization frame that uses described TCC main frame to provide carries out periodicity local data district to be checked, and the data that preserve this locality are carried out local update;
Also show the ground-based electronic equipment LEU1 and the LEU2 that are connected with described first row control message process device and secondary series control message process device respectively among the figure.
In sum:
Embodiments of the invention:
Message is carried out promptly encoding behind the real-time framing, and decode and verify the correctness of coding with the inverse operation of coding, it is reversible to decode as described, and then the explanation coding is correct, otherwise it is wrong to encode.Be issued to ground-based electronic equipment with verifying that correct coding message is packed, thereby form the real-time framing of user data that bus is issued, coding, checking, the message handling process that sends, and, the embodiment of the invention is on European railway transport administration system coding standard UNISIG SUBSET-036 basis, by condition inspection in advance, BCH computational process is provided with caching mechanism and concurrent operation, and structure oppositely the alphabetic(al) mode of inquiry make that this message handling process is real-time and consuming timely significantly reduce, and message decoding proof procedure accuracy height, overcome in the prior art a plurality of inefficiencies that issue of order such as same highway section temporary speed limitation and had order to issue the shortcoming of constraints such as number restriction, realized the message that row control bus sends is carried out real-time coding, improved the purpose that issues and carry out efficient of transponder message;
The embodiment of the invention adopts communication verified users data to guarantee the original message accuracy in addition; Employing verifies that with user data encoding state and decoding the result is sent to the TCC main frame, the anti-storage of coding computing variable compared the accuracy that mode verification multiple checks such as reaching repeatedly decoding has improved data, perfect verification scheme and message error mechanism is provided, guaranteed the message reliability.
Simultaneously, because the inventive method adopts the mode of real-time coding, need not a large amount of storages TCC messages of establishment in advance, it is limited and store the shortcoming of working out message in advance and being difficult to verify maintenance to have solved TCC host stores space.
The embodiment of the invention discloses a kind of row control message process device and system simultaneously, and described device is corresponding with described row control message processing method, and described system adopts the crossing redundancy bus structures, has guaranteed the availability of the message that bus issues.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
The professional can also further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (20)
1. a row control message processing method is characterized in that, comprising:
User data behind the real-time framing that bus is issued is encoded according to default coding regulation, obtains coding message;
By described coding message is decoded, verify the correctness of the coding result of described user data;
After proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
2. processing method according to claim 1 is characterized in that, described bus is specially any one tunnel in the redundant each other two-way row control center TCC system host bus.
3. processing method according to claim 2, it is characterized in that, user data behind the described real-time framing that bus is issued is encoded according to default coding regulation and is specially: a road real-time framing of train travel information that issues in will the two-way bus of described redundancy each other, user data behind the described real-time framing is specially 830 user data, and the user data behind the real-time framing is encoded according to European railway transport administration system coding standard UNISIG SUBSET-036 in the programmable gate array FPGA at the scene.
4. processing method according to claim 3 is characterized in that, described user data behind the real-time framing is specially according to European railway transport administration system coding standard UNISIG SUBSET-036 coding in the programmable gate array FPGA at the scene:
A: 830 user data sd are divided into one group by per 10, totally 83 groups, with one all add up and function replace preceding 10;
B: select 12 scrambler sb, press the sb generator polynomial to 830 message scramblings;
C: with per 10 of the data after the scrambling is one group, and tables look-up according to the predetermined word matrix and to be transformed to 11 long words;
D: select 10 finishing sign indicating number esb; E: produce 85 bit check sign indicating number check bits;
F: condition inspection; Wherein, first condition is specially the alphabet condition, and each word of 11 should be consistent with specific alphabet.
5. processing method according to claim 4 is characterized in that, also comprises: before step B described 83 groups of user data are carried out the first condition inspection.
6. processing method according to claim 4 is characterized in that, also comprises: buffer memory BCH is at the operation result of described sd, and with the BCH of described buffer memory at the operation result of described sd as at described cb, sb, esb, the initial value of check bits computing.
7. processing method according to claim 6 is characterized in that, also comprises: described BCH is specially 11 parallel-by-bit computings at the computing of described sd; Described at described cb, sb, esb, the checkbits computing is specially 33 parallel-by-bit computings.
8. processing method according to claim 2 is characterized in that, described with described coding message according to preset protocol packing and be sent to ground-based electronic equipment and be specially: with described coding message according to the FSFB/2 protocol packing and be sent to ground-based electronic equipment.
9. processing method according to claim 3 is characterized in that, also comprises: the correctness of periodic survey frame check user data, and transmission synchronization frame verification communication sequential reaches the correctness of the sequential of electronic equipment transmission message earthward.
10. processing method according to claim 3 is characterized in that, also comprises: verify that with the encoding state and the decoding of record the result is sent to the TCC system host synchronizing cycle that according to the cycle is the TCC main frame.
11. processing method according to claim 3, it is characterized in that, also comprise: encode overtime or message can not compile the time when described data, the TCC main frame sends the indication of whether revising described 830 user data and recompile according to digital coding state that returns and message decoding checking result.
12. processing method according to claim 3 is characterized in that, also comprises: the key variables backup when described user data is encoded, compare checking key variables correctness with the anti-storage of the key variables of backup and with described key variables.
13. processing method according to claim 2 is characterized in that; Also comprise: the key variables backup when described coding message is decoded, compare checking key variables correctness with the anti-storage of the key variables of backup and with described key variables.
14. processing method according to claim 2 is characterized in that, also comprises:
The described decode procedure that coding message is carried out is repeated, obtain the secondary decoded result;
Compare decoded result twice, when twice decoded result is consistent, determines that then proving correctness passes through, otherwise be back to described TCC main frame.
15. a row control message process device is characterized in that, comprising:
The message receiving interface is used to receive the user data behind the real-time framing that bus issues;
Coding unit is used for the user data behind the described real-time framing is encoded according to default coding regulation, obtains coding message;
Decoding unit is used for coding message is decoded, and verifies the correctness of the coding result of described user data;
CPU is used to regulate and control the message processing procedure of described processing unit;
The message transmission interface is used for after proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
16. processing unit according to claim 15 is characterized in that, described bus is specially any one tunnel in the redundant each other two-way row control center TCC system host bus.
17. processing unit according to claim 15 is characterized in that, described coding unit is specially the on-site programmable gate array FPGA module.
18. row control message handling system, comprise TCC main frame and bus structures, described bus structures comprise multiple bus, it is characterized in that, comprise: be arranged at the row control message process device of the communications interface unit of described TCC main frame, described row control message process device comprises:
The message receiving interface is used to receive the user data behind the real-time framing that bus issues;
Coding unit is used for the user data behind the described real-time framing is encoded according to default coding regulation, obtains coding message;
Decoding unit by coding message is decoded, is verified the correctness of the coding result of described user data;
CPU is used to regulate and control the message processing procedure of described processing unit;
The message transmission interface is used for after proving correctness passes through, with described coding message according to preset protocol packing and be sent to ground-based electronic equipment LEU.
19. treatment system according to claim 18, it is characterized in that, described row control message process device adopts crossing redundancy to be connected with described TCC main frame: the first row control message process device, first bus interface is connected with first bus of described TCC main frame, and second bus interface is connected with the 3rd bus of described TCC main frame;
Secondary series control message process device first bus interface is connected with second bus of described TCC main frame, and second bus interface is connected with the 3rd bus of described TCC main frame.
20. treatment system according to claim 18 is characterized in that, described row control message process device is specially the message coding plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102347193A CN101917248A (en) | 2010-07-20 | 2010-07-20 | Method, device and system for processing train control message |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102347193A CN101917248A (en) | 2010-07-20 | 2010-07-20 | Method, device and system for processing train control message |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101917248A true CN101917248A (en) | 2010-12-15 |
Family
ID=43324653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102347193A Pending CN101917248A (en) | 2010-07-20 | 2010-07-20 | Method, device and system for processing train control message |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101917248A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267477A (en) * | 2011-05-16 | 2011-12-07 | 北京全路通信信号研究设计院有限公司 | Temporary speed-restricting command sending method and device of C3 system |
| CN102307148A (en) * | 2011-09-22 | 2012-01-04 | 北京铁路信号有限公司 | Method for determining bit error rate of transponder message |
| CN102358336A (en) * | 2011-09-07 | 2012-02-22 | 广东工业大学 | Chain breakage treatment method for temporary train speed limitation |
| CN102420675A (en) * | 2011-11-24 | 2012-04-18 | 迈普通信技术股份有限公司 | Methods and devices for transmitting and receiving using state information of buffer of data message |
| CN102437898A (en) * | 2011-12-15 | 2012-05-02 | 北京和利时系统工程有限公司 | System and method for highspeed rail to generate transponder massage in real time |
| CN102795246A (en) * | 2012-07-27 | 2012-11-28 | 北京交大思诺科技有限公司 | High-safety ground electronic unit and method for improving safety of high-safety ground electronic unit |
| CN103092922A (en) * | 2012-12-28 | 2013-05-08 | 国家计算机网络与信息安全管理中心 | Post-coding automatic decoding method aiming at uniform resource locator (URL) comprising special characters |
| CN103200130A (en) * | 2013-04-19 | 2013-07-10 | 北京交大思诺科技有限公司 | Safe storage and selection method and device for messages in LEU (Line-side Electronic Unit) |
| CN104050193A (en) * | 2013-03-15 | 2014-09-17 | 中国银联股份有限公司 | Message generating method and data processing system for realizing method |
| CN105426693A (en) * | 2015-12-15 | 2016-03-23 | 中国电子信息产业集团有限公司第六研究所 | Train speed limiting curve calculating method and device based on C language |
| CN106793113A (en) * | 2016-12-05 | 2017-05-31 | 河南辉煌科技股份有限公司 | A kind of bit stream implementation method of CTCS row control message scrambler |
| CN107659660A (en) * | 2017-10-20 | 2018-02-02 | 河南辉煌科技股份有限公司 | The implementation method of binary profile file encapsulation CTCS row control transponder messages |
| CN108241359A (en) * | 2017-12-15 | 2018-07-03 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of failure safe output method based on SAFEBus buses |
| CN108881022A (en) * | 2018-05-30 | 2018-11-23 | 中国人民解放军战略支援部队信息工程大学 | A kind of datagram scrambles the network node device and method for forwarding of tabling look-up |
| CN109167992A (en) * | 2018-08-08 | 2019-01-08 | 珠海格力电器股份有限公司 | A kind of image processing method and device |
| CN109361317A (en) * | 2018-10-26 | 2019-02-19 | 国网江苏省电力有限公司 | A kind of Centralized Controller of three port electric power electric transformer |
| CN111355634A (en) * | 2020-02-20 | 2020-06-30 | 北京华力创通科技股份有限公司 | Network interface testing method |
| WO2022134880A1 (en) * | 2020-12-23 | 2022-06-30 | 卡斯柯信号有限公司 | Reliability protection method for real-time scrambled packet transmission of train control center system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003098861A1 (en) * | 2002-05-15 | 2003-11-27 | General Electric Company | Intelligent communications, command, and control system for a land-based vehicle |
| CN101069356A (en) * | 2004-12-02 | 2007-11-07 | 三菱电机株式会社 | Decoding device and communication device |
| CN101127579A (en) * | 2007-08-30 | 2008-02-20 | 株洲南车时代电气股份有限公司 | Decoding device applicable to railway point information |
| CN101174921A (en) * | 2007-10-29 | 2008-05-07 | 北京佳讯飞鸿电气股份有限公司 | Dynamic message encoding method of train control system |
-
2010
- 2010-07-20 CN CN2010102347193A patent/CN101917248A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003098861A1 (en) * | 2002-05-15 | 2003-11-27 | General Electric Company | Intelligent communications, command, and control system for a land-based vehicle |
| CN101069356A (en) * | 2004-12-02 | 2007-11-07 | 三菱电机株式会社 | Decoding device and communication device |
| CN101127579A (en) * | 2007-08-30 | 2008-02-20 | 株洲南车时代电气股份有限公司 | Decoding device applicable to railway point information |
| CN101174921A (en) * | 2007-10-29 | 2008-05-07 | 北京佳讯飞鸿电气股份有限公司 | Dynamic message encoding method of train control system |
Non-Patent Citations (1)
| Title |
|---|
| ALCATEL,ETC: "《FFFIS for Eurobalise》", 27 September 2007 * |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267477A (en) * | 2011-05-16 | 2011-12-07 | 北京全路通信信号研究设计院有限公司 | Temporary speed-restricting command sending method and device of C3 system |
| CN102358336A (en) * | 2011-09-07 | 2012-02-22 | 广东工业大学 | Chain breakage treatment method for temporary train speed limitation |
| CN102307148A (en) * | 2011-09-22 | 2012-01-04 | 北京铁路信号有限公司 | Method for determining bit error rate of transponder message |
| CN102307148B (en) * | 2011-09-22 | 2014-04-02 | 北京铁路信号有限公司 | Method for determining bit error rate of transponder message |
| CN102420675A (en) * | 2011-11-24 | 2012-04-18 | 迈普通信技术股份有限公司 | Methods and devices for transmitting and receiving using state information of buffer of data message |
| CN102420675B (en) * | 2011-11-24 | 2014-03-26 | 迈普通信技术股份有限公司 | Methods and devices for transmitting and receiving using state information of buffer of data message |
| CN102437898A (en) * | 2011-12-15 | 2012-05-02 | 北京和利时系统工程有限公司 | System and method for highspeed rail to generate transponder massage in real time |
| CN102795246A (en) * | 2012-07-27 | 2012-11-28 | 北京交大思诺科技有限公司 | High-safety ground electronic unit and method for improving safety of high-safety ground electronic unit |
| CN103092922A (en) * | 2012-12-28 | 2013-05-08 | 国家计算机网络与信息安全管理中心 | Post-coding automatic decoding method aiming at uniform resource locator (URL) comprising special characters |
| CN103092922B (en) * | 2012-12-28 | 2018-04-10 | 国家计算机网络与信息安全管理中心 | A kind of automatic decoding method for after the URL codings containing spcial character |
| CN104050193A (en) * | 2013-03-15 | 2014-09-17 | 中国银联股份有限公司 | Message generating method and data processing system for realizing method |
| CN104050193B (en) * | 2013-03-15 | 2017-11-03 | 中国银联股份有限公司 | Generate the method for message and realize the data handling system of this method |
| CN103200130B (en) * | 2013-04-19 | 2016-08-17 | 北京交大思诺科技股份有限公司 | The method and device that in a kind of LEU, the safety of message stores and selects |
| CN103200130A (en) * | 2013-04-19 | 2013-07-10 | 北京交大思诺科技有限公司 | Safe storage and selection method and device for messages in LEU (Line-side Electronic Unit) |
| CN105426693A (en) * | 2015-12-15 | 2016-03-23 | 中国电子信息产业集团有限公司第六研究所 | Train speed limiting curve calculating method and device based on C language |
| CN106793113A (en) * | 2016-12-05 | 2017-05-31 | 河南辉煌科技股份有限公司 | A kind of bit stream implementation method of CTCS row control message scrambler |
| CN107659660A (en) * | 2017-10-20 | 2018-02-02 | 河南辉煌科技股份有限公司 | The implementation method of binary profile file encapsulation CTCS row control transponder messages |
| CN108241359A (en) * | 2017-12-15 | 2018-07-03 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of failure safe output method based on SAFEBus buses |
| CN108241359B (en) * | 2017-12-15 | 2021-06-01 | 中国航空工业集团公司西安飞行自动控制研究所 | Safety fault output method based on safebus bus |
| CN108881022B (en) * | 2018-05-30 | 2020-11-10 | 中国人民解放军战略支援部队信息工程大学 | Network node device and method for scrambling and look-up table forwarding of datagram |
| CN108881022A (en) * | 2018-05-30 | 2018-11-23 | 中国人民解放军战略支援部队信息工程大学 | A kind of datagram scrambles the network node device and method for forwarding of tabling look-up |
| CN109167992A (en) * | 2018-08-08 | 2019-01-08 | 珠海格力电器股份有限公司 | A kind of image processing method and device |
| CN109361317A (en) * | 2018-10-26 | 2019-02-19 | 国网江苏省电力有限公司 | A kind of Centralized Controller of three port electric power electric transformer |
| CN111355634A (en) * | 2020-02-20 | 2020-06-30 | 北京华力创通科技股份有限公司 | Network interface testing method |
| CN111355634B (en) * | 2020-02-20 | 2021-12-14 | 北京华力创通科技股份有限公司 | Network interface testing method |
| WO2022134880A1 (en) * | 2020-12-23 | 2022-06-30 | 卡斯柯信号有限公司 | Reliability protection method for real-time scrambled packet transmission of train control center system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917248A (en) | Method, device and system for processing train control message | |
| CN101174921B (en) | Dynamic message encoding method of train control system | |
| US10599511B2 (en) | Method and architecture for critical systems utilizing multi-centric orthogonal topology and pervasive rules-driven data and control encoding | |
| CN103106124B (en) | Intersection reconstruction method based on erasure code cluster memory system | |
| CN1596199A (en) | Signal error detection in railroad communication system | |
| CN103533045A (en) | Method for high-performance fault tolerance of PCIE (Peripheral Component Interface Express) data link layer | |
| CN102799495B (en) | For generating the device of School Affairs | |
| CN103200130B (en) | The method and device that in a kind of LEU, the safety of message stores and selects | |
| CN102385936A (en) | Hamming code based method for carrying out fault tolerance on static RAM multiple bit upset | |
| CN103220100B (en) | A kind of output means of voting based on coding | |
| CN103885850B (en) | Memorizer On line inspection system and method | |
| CN109358980A (en) | A kind of pair of data update and single disk error repairs friendly RAID6 coding method | |
| CN106788878A (en) | A kind of Parallel CRC error correction method with monobit errro correction function | |
| CN102298973A (en) | Anti-radiation fault-secure type memory device and anti-radiation fault-secure method thereof | |
| CN102795246B (en) | A kind of high safe LEU and improve the method for its fail safe | |
| US9713992B2 (en) | Transmission system for avionics application data | |
| CN106170774A (en) | For detecting the cache memory error detect circuit of the bit flipping in the significance indicator in cache memory after expiration operation, and associated method and system based on processor | |
| Maheswari et al. | Enhanced low complex double error correction coding with crosstalk avoidance for reliable on-chip interconnection link | |
| US20230188536A1 (en) | Communication method based on dual channels and rssp-i, apparatus, electronic device and storage medium | |
| CN102684841B (en) | A kind of coding computing unit and decoded data method of calibration | |
| Lewko et al. | Balancing communication for multi-party interactive coding | |
| CN102832962A (en) | High-safety transponder ground electronic unit and method for improving safety of high-safety transponder ground electronic unit | |
| CN110231999B (en) | Method and device for improving reliability of storage system based on local repair coding | |
| CN106383669A (en) | Distributed storage method and system based on (n,k,m) coding | |
| CN103514062A (en) | Dynamic coding method applied to computer interlocking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101215 |