CN109861791A - A kind of preiodic type data message transmission method, system, device and storage medium - Google Patents
A kind of preiodic type data message transmission method, system, device and storage medium Download PDFInfo
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Abstract
The invention discloses a kind of preiodic type data message transmission method, system, device and storage mediums.In the method, each data message is assigned identifier, and each data message is transmitted according to the transmission sequence that priority corresponding to respective identifier value size determines；Each identifier is through the following steps that distribute to each data message: according to the corresponding ID range to be allocated of each data message of the cycle set of each data message；Serial number in the group of each data message is calculated according to the permission maximum delay and transmission time of each data message；When the data message monopolizes serial number in a group, the data message is distributed to using to be allocated ID corresponding with serial number in the group in corresponding ID range to be allocated as identifier.The present invention overcomes the disadvantages for only considering that this excessively coarse index of load factor causes efficiency of transmission not high in the prior art.The present invention is widely used in technical field of data transmission.
Description
Technical field
The present invention relates to technical field of data transmission, especially a kind of preiodic type data message transmission method, system, device
And storage medium.
Background technique
In the application field of the bus-types data transmission system such as CAN and CANFD, often data are passed according to load factor
Defeated system is configured.Load factor is the actual data transfer rate and theoretical maximum message transmission rate of data transmission system
Ratio, it can reflect the service condition of Current bus resource, but cannot fully assess the validity and scalability of bus.
In the prior art, load factor is relied on generally to control data transmission system, such as will control target setting
For " load factor is no more than 30% ", load factor is as to a parameter in data transmission system negative feedback control at this time.But
Load factor itself is a very coarse index, and there is no consider bus-type data transmission system especially transmission cycle type
Concrete technical problems when data message, one of them most significant problem are the delay issues of data transmission.In preiodic type number
According in the transmission process of message, the transmission sequence of data message is determined by the identifier in data message, in general, mark
The numerical value for knowing symbol is smaller, and the priority of the data message is higher, more first to be transmitted.In the prior art, identifier is set
Count it is unreasonable, frequent occurrence the priority of macrocyclic data message be higher than short-period data message the case where, in this way, total
In linear system system, the transmission of short-period data message is subject to the competition of macrocyclic data message, so that short-period number
Very big according to the transmission delay of message, the overall delay of entire data transmission system can also become very big, seriously reduce data biography
Defeated efficiency, if important information is stored in short-period data message, the transmission that will result in important information is slow.But
The load factor that the prior art is relied on can not transmission delay the problem of, therefore around load factor design Data Transmission Controlling side
Method cannot also solve the problems, such as transmission delay.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the invention is that providing a kind of preiodic type data message transmission method, being
System, device and storage medium.
On the one hand, the embodiment of the present invention includes a kind of preiodic type data message transmission method, each data message quilts
Allocation identification symbol, each data message according to priority corresponding to respective identifier value size determine transmission sequence into
Row transmission；Each identifier is through the following steps that distribute to each data message:
According to the corresponding ID range to be allocated of each data message of the cycle set of each data message；
Serial number in the group of each data message is calculated according to the permission maximum delay and transmission time of each data message；Described group
Interior serial number is described same for indicating data message putting in order in the data message set that multiple homogeneous data messages form
Class data message is the data message for corresponding to identical ID range to be allocated；
It, will be corresponding with serial number in the group in corresponding ID range to be allocated when the data message monopolizes serial number in a group
ID to be allocated distribute to the data message as identifier.
Further, when serial number in having the same group of multiple homogeneous data messages, following steps are executed:
Search the transmission source of the multiple homogeneous data message；
The message total issued to the transmission source found counts；
The message total issued by corresponding transmission source by as little as more sequences, to the multiple homogeneous data message into
Row sequence；
It is distributed to using to be allocated ID corresponding with serial number in the group in corresponding ID range to be allocated as identifier described more
The data message of sequence first in a homogeneous data message；
By other ID to be allocated after ID to be allocated corresponding with serial number in the group in corresponding ID range to be allocated by suitable
Sequence is individually assigned to other data messages in the multiple homogeneous data message.
Further, the permission maximum delay of each data message is according to the corresponding transmission source of data message and to connect
Receive terminal parameter setting.
Further, the permission maximum delay of each data message is the period according to data message and following corresponding pass
System's setting:
Period 10ms: allow maximum delay 20%；
Period 20ms: allow maximum delay 18%；
Period 40ms or 50ms: allow maximum delay 15%；
Period 100ms, 200ms, 500ms or 100ms allow maximum delay 10%.
Further, the numerical values recited of the corresponding ID range to be allocated of each data message and the period of data message are big
It is small that there is positive correlation.
Further, the corresponding ID range to be allocated of each data message be according to period of data message with it is right below
It should be related to setting:
Period 10ms: ID stated range minimum 0x100 to be allocated, ID range maximum value 0x17F to be allocated；
Period 20ms: ID stated range minimum 0x180 to be allocated, ID range maximum value 0x1FF to be allocated；
Period 40ms: ID stated range minimum 0x200 to be allocated, ID range maximum value 0x24F to be allocated；
Period 50ms: ID stated range minimum 0x250 to be allocated, ID range maximum value 0x28F to be allocated；
Period 100ms: ID stated range minimum 0x290 to be allocated, ID range maximum value 0x34F to be allocated；
Period 200ms: ID stated range minimum 0x350 to be allocated, ID range maximum value 0x37F to be allocated；
Period 500ms or 100ms: ID stated range minimum 0x380 to be allocated, ID range maximum value 0x3FF to be allocated.
Further, the group that each data message is calculated according to the permission maximum delay and transmission time of each data message
The step for interior serial number, calculation formula used wasIn formula, N is serial number in the group of data message, TdelayFor data
The permission maximum delay of message, TCANFor the transmission time of data message.
On the other hand, the embodiment of the invention also includes a kind of preiodic type data-message transmission system, each data messages
It is assigned identifier, each data message is suitable according to the transmission that priority corresponding to respective identifier value size determines
Sequence is transmitted；The system comprises:
ID range determination module to be allocated, it is corresponding wait divide for each data message of cycle set according to each data message
With ID range；
Serial number computing module in group, for calculating each data according to the permission maximum delay and transmission time of each data message
Serial number in the group of message；Serial number is for indicating the datagram collected works that data message is formed in multiple homogeneous data messages in described group
Putting in order in conjunction, the homogeneous data message are the data message for corresponding to identical ID range to be allocated；
Identifier distribution module, for when the data message monopolizes serial number in described group, inciting somebody to action corresponding ID model to be allocated
To be allocated ID corresponding with serial number in the group, which is enclosed, as identifier distributes to the data message.
On the other hand, the embodiment of the invention also includes a kind of preiodic type data-message transmission devices, including memory and place
Device is managed, the memory is for storing at least one program, and the processor is for loading at least one described program to execute
Data message transmission method of the present invention.
On the other hand, the embodiment of the invention also includes a kind of storage mediums, wherein it is stored with the executable instruction of processor,
The executable instruction of the processor is used to execute data message transmission method of the present invention when executed by the processor.
The beneficial effects of the present invention are: the present invention determines the mark that data message can be assigned to by the period of data message
The range where numerical value is accorded with, is equivalent to and the priority of data message has substantially been determined, then most further according to the permission of data message
Big delay and transmission time further confirm that the identifier of data message, that is, determine the priority of data message.The method of the present invention
From the transmission priority for confirming data message according to the feature of data message itself, it is contemplated that entire bus-type data transmission system
The bulk delay of all data messages transmitted in system so that the bulk delay of entire data transmission system be it is optimal, overcome
Only consider that load factor this excessively coarse index causes transmission delay is excessive, efficiency of transmission is not high to lack in the prior art
Point.
Detailed description of the invention
Fig. 1 and Fig. 2 is the flow chart of data message transmission method embodiment of the present invention.
Specific embodiment
In the present embodiment, " transmission " includes the processes such as " transmission " and " reception ", and sending node sends out a data
Message, receiving node receive the data message, then complete the transmission process of a data message.Due to " transmission " and " reception "
Step be it is corresponding, those skilled in the art are to be appreciated that the reception of data message according to the transmission process of data message
Journey, therefore the present embodiment is only illustrated the transmission process of data message, and not general to " transmission ", " transmission " and " reception " etc.
Thought distinguishes.
Data message described in the present embodiment refers to preiodic type data message.Preiodic type data message is and event mode number
A kind of data message distinguished according to message, preiodic type data message are corresponding with certain transmission cycle, whenever by a biography
Just a transmission process is carried out when the defeated period.Transmission cycle is generally 10ms, 20ms and 50ms etc., that is, it is every by 10ms into
Transmission process of row.
Transmission in the present embodiment is carried out in the bus-types data transmission system such as CAN or CANFD.In these buses
In type data transmission system, the priority of every data message is related with the numerical values recited for the identifier that it is assigned to, identifier
Numerical value it is smaller, the priority of data message is higher, and the higher data message of priority is more first to be transmitted.
Since the transmission of data message itself belongs to the prior art, the present embodiment mainly distribution to data message identifier
Method is illustrated.In the present embodiment, referring to Fig.1, accorded with by following steps to each data message allocation identification:
S1. according to the corresponding ID range to be allocated of each data message of cycle set of each data message；
S2. serial number in the group of each data message is calculated according to the permission maximum delay and transmission time of each data message；Institute
Serial number in group is stated to be used to indicate data message putting in order in the data message set that multiple homogeneous data messages form, institute
Stating homogeneous data message is the data message for corresponding to identical ID range to be allocated；
S3. when the data message monopolizes serial number in a group, will in corresponding ID range to be allocated with serial number in the group
Corresponding ID to be allocated distributes to the data message as identifier.
Step S1 is that pieces of data message determines that ID range to be allocated, ID range to be allocated define that pieces of data message exists
The numberical range for the identifier being assigned in step S3.In step S1, ID to be allocated that every data message can be assigned to
Range is related with the period of data message, and in the present embodiment, the different data message with same period all will be corresponding identical
ID range to be allocated, and data message and identifier should be one-to-one, therefore ID range to be allocated should be arranged
It is sufficiently large, so that distributing to the number with the period with enough ID to be allocated within the scope of ID to be allocated as identifier
According to message.For example, the corresponding first ID range to be allocated of data message that the period is 10ms, the data message that the period is 20ms are corresponding
Second ID range to be allocated.
In step S1, every data message corresponds to its sending node and receiving node.Data can be set in sending node
The most fast processing time of data message can be set in the most fast refresh time of message, receiving node, and the period of data message is by most
Fast refresh time and most fast processing time determine jointly.
In step S2, by the data message of the identical ID range to be allocated of correspondence, it may also be said to, by the number with same period
It is classified as a data message set according to message, and they are referred to as homogeneous data message, i.e. whole in a data message set
Data message is homogeneous data message.Serial number is for indicating that a data message is counted accordingly in the group that step S2 is calculated
According to the order inside message set.In step S2, serial number is to allow maximum delay and transmission by it in the group of every data message
What the time calculated, the meaning for organizing interior serial number at this time is number of the data message set internal priority greater than the data message
According to message item number.
The permission maximum delay of data message used in step S2, there is different algorithms in CAN and CANFD.In CAN
In,In formulaFor the permission maximum delay of data message m, a is the transmission time of data message in CAN,
X be from the corresponding different controllers of data message m, the sum of the data message with higher priority, y for and m pairs of data message
Answer the sum of same controller, data message with higher priority.In CANFD,In formulaFor the permission maximum delay of data message m, TniFor from the corresponding different controllers of data message m, with higher priority
Total transmission time of data message, TkiFor same controller corresponding with data message m, with the data message of higher priority
Total transmission time, i be controller serial number.
In step S2, the permission maximum delay and transmission time of different data messages will not generally correspond to identical.But
In same data message set, in the group of different data messages serial number be all by the permission maximum delay of data message and
What transmission time was calculated, it is possible to data message different in same data message set occur and correspond to sequence in same group
Number the case where.
The case where step S3 is for handling serial number in the exclusive group of data message, in this case, a data message set
In, serial number only corresponds to a data message in a group, the case where serial number corresponds to a plurality of data message in a group does not occur.
In this case, it is directly distributed to using to be allocated ID corresponding with serial number in the group in corresponding ID range to be allocated as identifier
The data message.In step S3, if serial number N in the group of a data message is calculated, can will accordingly to point
The data message is distributed to as identifier with n-th ID to be allocated in ID range.
It is further used as preferred embodiment, referring to Fig. 2, there is phase when occurring multiple homogeneous data messages in step S3
When in same group the case where serial number, following steps are executed:
S4. the transmission source of the multiple homogeneous data message is searched；
S5. the message total issued to the transmission source found counts；
S6. the message total issued by corresponding transmission source is by as little as more sequences, to the multiple homogeneous data report
Text is ranked up；
S7. it is distributed to using to be allocated ID corresponding with serial number in the group in corresponding ID range to be allocated as identifier described
The data message of sequence first in multiple homogeneous data messages；
S8. other ID to be allocated after ID to be allocated corresponding with serial number in the group in corresponding ID range to be allocated are pressed
Sequence is individually assigned to other data messages in the multiple homogeneous data message.
Step S4-S8 is for the case where handling serial number in having the same group of multiple homogeneous data messages, in this case,
In one data message set, serial number corresponds to a plurality of data message in a group.Since an ID to be allocated can only distribute to one
Data message, therefore in this case cannot directly will be corresponding to be allocated with serial number in the group in corresponding ID range to be allocated
ID distributes to these data messages as identifier.
In step S4, if m is calculated1、m2And m3This three periods are sequence in the group of the homogeneous data message of 10ms
It number is N, then looking up m1、m2And m3The transmission source of this three homogeneous data messages or sending node.In CAN or CANFD
In, m1、m2And m3From different controllers, it is assumed that m1From EPS, m2From ESP, m3From VCU.
In step S5, EPS, ESP and VCU message total issued are counted.In the present embodiment, the message that is counted
Period and m1、m2And m3Period is identical, and statistics obtains EPS and sends the message that 2 periods are 10ms altogether, and ESP sends 4 altogether
Period is the message of 10ms, and VCU sends the message that 6 periods are 10ms altogether.According to the rule of step S6, issued due to EPS
Message total is minimum, therefore the data message m that EPS is issued1It should ranked first, similarly m2It ranked second, m3It ranked third.
In step S7, n-th ID to be allocated in corresponding ID range to be allocated is distributed into the number that ranked first as identifier
According to message m1。
In step S8, N+1 ID to be allocated in corresponding ID range to be allocated are distributed to as identifier be ranked second
Data message m2, N+2 ID to be allocated in corresponding ID range to be allocated are distributed into the datagram that ranked third as identifier
Literary m3。
If in step S5, the message total for counting on the sending of at least two transmission sources is identical, then corresponding in step S6
The two sequences for sending the homogeneous data message in source can be with random arrangement.For example, statistics obtains EPS and sends 2 periods altogether
For the message of 10ms, ESP sends the message that 2 periods are 10ms altogether, and VCU sends the message that 6 periods are 10ms altogether, EPS and
The period that ESP is sent is that the sum of the message of 10ms is 2, then m1And m2Sequence between the two can with random arrangement,
Either m1It ranked first, m2It ranked second, m3It ranked third, be also possible to m2It ranked first, m1It ranked second, m3It ranked third.
It is further used as preferred embodiment, the permission maximum delay of each data message is according to data message pair
That answers sends source and reception terminal parameter setting.In the present embodiment, the permission maximum delay of data message can be by sending
Source or the hardware parameter for receiving terminal determine.It can also be set according to the demand of practical service environment.Preferably, logarithm
There should be certain corresponding relationship with the period of the data message according to the permission maximum delay of message setting, each item number could be made
According to total delay minimization caused by when message transmissions.In the present embodiment, the permission maximum delay of each data message and its
Period has following corresponding relationship:
Period 10ms: allow maximum delay 20%；
Period 20ms: allow maximum delay 18%；
Period 40ms or 50ms: allow maximum delay 15%；
Period 100ms, 200ms, 500ms or 100ms allow maximum delay 10%.
In above-mentioned corresponding relationship, allows maximum delay to be indicated with percentage, permission can be calculated by the corresponding period
The occurrence of maximum delay.For example, allowing maximum delay is 20% when the period of data message is 10ms, maximum is allowed to prolong
Slow occurrence is 10ms*20%=2ms；When the period of data message is 20ms, allowing maximum delay is 18%, is allowed most
The occurrence postponed greatly is 20ms*18%=3.6ms.
Be further used as preferred embodiment, the numerical values recited of the corresponding ID range to be allocated of each data message with
The period size of data message has positive correlation.That is the period of data message is bigger, in corresponding ID range to be allocated,
The numerical value of every ID to be allocated is bigger.The setting of the present embodiment, so that the priority of period bigger data message is lower, the period
Lesser data message is first transmitted due to its priority, therefore the delayed impact that period lesser data message is subject to is smaller.
And period biggish data message may due to priority is lower by biggish delayed impact, but due to their period compared with
Greatly, therefore specific gravity shared by identical delay duration is lower, and it is totally bad to entire Transmission system bring can to weaken delay
It influences.
It is further used as preferred embodiment, the corresponding ID range to be allocated of each data message is according to datagram
What the period of text and following corresponding relationship were set:
Period 10ms: ID stated range minimum 0x100 to be allocated, ID range maximum value 0x17F to be allocated；
Period 20ms: ID stated range minimum 0x180 to be allocated, ID range maximum value 0x1FF to be allocated；
Period 40ms: ID stated range minimum 0x200 to be allocated, ID range maximum value 0x24F to be allocated；
Period 50ms: ID stated range minimum 0x250 to be allocated, ID range maximum value 0x28F to be allocated；
Period 100ms: ID stated range minimum 0x290 to be allocated, ID range maximum value 0x34F to be allocated；
Period 200ms: ID stated range minimum 0x350 to be allocated, ID range maximum value 0x37F to be allocated；
Period 500ms or 100ms: ID stated range minimum 0x380 to be allocated, ID range maximum value 0x3FF to be allocated.
In the present embodiment, each ID range to be allocated is by corresponding ID stated range minimum to be allocated and ID model to be allocated
It encloses what maximum value determined, there is multiple ID to be allocated between ID stated range minimum to be allocated and ID range maximum value to be allocated.Example
Such as, it in the corresponding ID range to be allocated of period 10ms, is ranked up, ranked first according to the ascending sequence of ID numerical value to be allocated
ID to be allocated be 0x100, the ID to be allocated that ranked second be 0x101, the ID to be allocated that ranked third be 0x102；Period is 10ms
Any value of the ID to be allocated that may be assigned to of data message between 0x100-0x17F.
It is further used as preferred embodiment, the permission maximum delay and transmission time meter according to each data message
The step for calculating serial number in the group of each data message calculation formula used isIn formula, N is in the group of data message
Serial number, TdelayFor the permission maximum delay of data message, TCANFor the transmission time of data message.
The advantages of the method for the present invention, which essentially consists in, improves the identifier allocation method of data message, first by counting
The range where the identifier value that data message can be assigned to is determined according to the period of message, is equivalent to and datagram has substantially been determined
The priority of text further confirms that the mark of data message then further according to the permission maximum delay and transmission time of data message
Know symbol, that is, determines the priority of data message.The method of the present invention confirms data message from according to the feature of data message itself
Transmission priority, it is contemplated that the bulk delay of all data messages transmitted in entire bus-type data transmission system overcomes
The disadvantage that load factor this excessively coarse index causes efficiency of transmission not high is only considered in the prior art.Further, originally
Inventive method gives the optimal range of identifiers of the data message for CAN the and CANFD system various periods.
The present embodiment further includes a kind of preiodic type data-message transmission system, comprising:
ID range determination module to be allocated, it is corresponding wait divide for each data message of cycle set according to each data message
With ID range；
Serial number computing module in group, for calculating each data according to the permission maximum delay and transmission time of each data message
Serial number in the group of message；Serial number is for indicating the datagram collected works that data message is formed in multiple homogeneous data messages in described group
Putting in order in conjunction, the homogeneous data message are the data message for corresponding to identical ID range to be allocated；
Identifier distribution module, for when the data message monopolizes serial number in described group, inciting somebody to action corresponding ID model to be allocated
To be allocated ID corresponding with serial number in the group, which is enclosed, as identifier distributes to the data message.
Serial number computing module and identifier distribution module can be transmitting terminal in the ID range determination module to be allocated, group
With the hardware module of receiving end, it is also possible to be mounted on the software module on transmitting terminal and receiving end.
The present embodiment further includes a kind of preiodic type data-message transmission device, including memory and processor, the storage
Device is for storing at least one program, and the processor is for loading at least one described program to execute data message of the present invention
Transmission method.The memory and processor may be mounted on transmitting terminal and receiving end.
The present embodiment further includes a kind of storage medium, wherein being stored with the executable instruction of processor, the processor can
The instruction of execution is used to execute data message transmission method of the present invention when executed by the processor.The storage medium can be installed
On transmitting terminal and receiving end.
Data-message transmission system, device and storage medium in the present embodiment, can execute data message of the invention
Transmission method, any combination implementation steps of executing method embodiment have the corresponding function of this method and beneficial effect.
It is to be illustrated to preferable implementation of the invention, but the implementation is not limited to the invention above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of preiodic type data message transmission method, which is characterized in that each data message is assigned identifier, each institute
Data message is stated to be transmitted according to the transmission sequence that priority corresponding to respective identifier value size determines；Each mark
Symbol is known through the following steps that distributing to each data message:
According to the corresponding ID range to be allocated of each data message of the cycle set of each data message；
Serial number in the group of each data message is calculated according to the permission maximum delay and transmission time of each data message；Sequence in described group
Number for indicating data message putting in order in the data message set that multiple homogeneous data messages form, the like numbers
It is the data message for corresponding to identical ID range to be allocated according to message；
When the data message monopolizes serial number in a group, will in corresponding ID range to be allocated it is corresponding with serial number in the group to
ID is distributed as identifier and distributes to the data message.
2. a kind of preiodic type data message transmission method according to claim 1, which is characterized in that when multiple homogeneous datas
In having the same group of message when serial number, following steps are executed:
Search the transmission source of the multiple homogeneous data message；
The message total issued to the transmission source found counts；
The message total issued by corresponding transmission source arranges the multiple homogeneous data message by as little as more sequences
Sequence；
It is distributed to using to be allocated ID corresponding with serial number in the group in corresponding ID range to be allocated as identifier the multiple same
The data message of sequence first in class data message；
By other ID to be allocated after ID to be allocated corresponding with serial number in the group in corresponding ID range to be allocated in order by
One distributes to other data messages in the multiple homogeneous data message.
3. a kind of preiodic type data message transmission method according to claim 1, which is characterized in that each data message
Permission maximum delay be according to the corresponding transmission source of data message and receive terminal parameter set.
4. a kind of preiodic type data message transmission method according to claim 1, which is characterized in that each data message
Permission maximum delay be to be set according to the period and following corresponding relationship of data message:
Period 10ms: allow maximum delay 20%；
Period 20ms: allow maximum delay 18%；
Period 40ms or 50ms: allow maximum delay 15%；
Period 100ms, 200ms, 500ms or 100ms allow maximum delay 10%.
5. a kind of preiodic type data message transmission method according to claim 1, which is characterized in that each data message
The numerical values recited of corresponding ID range to be allocated and the period size of data message have positive correlation.
6. a kind of preiodic type data message transmission method according to claim 5, which is characterized in that each data message
Corresponding ID range to be allocated was set according to the period and following corresponding relationship of data message:
Period 10ms: ID stated range minimum 0x100 to be allocated, ID range maximum value 0x17F to be allocated；
Period 20ms: ID stated range minimum 0x180 to be allocated, ID range maximum value 0x1FF to be allocated；
Period 40ms: ID stated range minimum 0x200 to be allocated, ID range maximum value 0x24F to be allocated；
Period 50ms: ID stated range minimum 0x250 to be allocated, ID range maximum value 0x28F to be allocated；
Period 100ms: ID stated range minimum 0x290 to be allocated, ID range maximum value 0x34F to be allocated；
Period 200ms: ID stated range minimum 0x350 to be allocated, ID range maximum value 0x37F to be allocated；
Period 500ms or 100ms: ID stated range minimum 0x380 to be allocated, ID range maximum value 0x3FF to be allocated.
7. a kind of preiodic type data message transmission method according to claim 1, which is characterized in that described according to each data
The step for permission maximum delay and transmission time of message calculate serial number in the group of each data message calculation formula used isIn formula, N is serial number in the group of data message, TdelayFor the permission maximum delay of data message, TCANFor datagram
The transmission time of text.
8. a kind of preiodic type data-message transmission system, which is characterized in that each data message is assigned identifier, each institute
Data message is stated to be transmitted according to the transmission sequence that priority corresponding to respective identifier value size determines；The system
Include:
ID range determination module to be allocated, for the corresponding ID to be allocated of each data message of cycle set according to each data message
Range；
Serial number computing module in group, for calculating each data message according to the permission maximum delay and transmission time of each data message
Group in serial number；Serial number is for indicating data message in the data message set that multiple homogeneous data messages form in described group
Put in order, the homogeneous data message is the data message for corresponding to identical ID range to be allocated；
Identifier distribution module, for when the data message monopolizes serial number in described group, inciting somebody to action in corresponding ID range to be allocated
To be allocated ID corresponding with serial number in the group distributes to the data message as identifier.
9. a kind of preiodic type data-message transmission device, which is characterized in that including memory and processor, the memory is used for
At least one program is stored, the processor requires any one of 1-7 institute for loading at least one described program with perform claim
State method.
10. a kind of storage medium, wherein being stored with the executable instruction of processor, which is characterized in that the processor is executable
Instruction be used to execute such as any one of claim 1-7 the method when executed by the processor.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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