CN105871510B - A kind of transmission method and device of aeronautical data - Google Patents
A kind of transmission method and device of aeronautical data Download PDFInfo
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- 238000012795 verification Methods 0.000 claims abstract description 17
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- 238000013524 data verification Methods 0.000 claims description 6
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- 241001269238 Data Species 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/03—Protocol definition or specification
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- Computer Security & Cryptography (AREA)
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Abstract
The invention discloses a kind of aeronautical data transmission method and device, method include the following steps: data collector monitor terminal send meet setting format, fixed word joint number aeronautical data to data collector；Aeronautical data is verified；If verification passes through, data collector executes corresponding operation according to start bit；Otherwise, it returns to reception false command and gives data collector monitor terminal；Judge whether to need to return band parameter instruction, if so, returning to the data for the fixed word joint number that start bit is the first setting value；Otherwise, the reception right instructions that start bit is the second setting value are returned；Received data are verified, if verification passes through, to being shown after data processing；Otherwise, data collector monitor terminal prompt data check failure.Implement aeronautical data transmission method and device of the invention, has the advantages that the communication that can simplify data collector and data collector monitor terminal, improve data transfer efficiency, the expense of simplified control and verification.
Description
Technical field
The present invention relates to field of data transmission, in particular to the transmission method and device of a kind of aeronautical data.
Background technique
Data collector and data collector monitor terminal are both-way communications when being communicated, i.e. data collector
Data can be sent to data collector monitor terminal, data collector monitor terminal can also send number to data collector
According to data collector and data collector monitor terminal are designed with UART serial ports, and data collector and data collector monitoring are eventually
End is communicated by UART serial port communicating protocol.Existing UART serial port communicating protocol data bits is insufficient, and data bit is most
Can be configured to 8, cannot matched data collector well application.In addition, data collector and data collector monitoring are eventually
The communication at end is complex, and data transmission efficiency is lower, controls larger with the expense of verification.
Summary of the invention
The technical problem to be solved in the present invention is that the above-mentioned data collector and data collector for the prior art are supervised
The communication of control terminal is complex, data transmission efficiency is lower, the biggish defect of expense of control and verification, provides a kind of energy letter
Change communication, the improve data transfer efficiency, the expense of simplified control and verification of data collector and data collector monitor terminal
Aeronautical data transmission method and device.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of transmission method of aeronautical data, wraps
Include following steps:
A) transmission of data collector monitor terminal meets setting format, fixed word joint number aeronautical data and acquires to data
Device；The setting format includes start bit, data bit and check bit；The length of the data bit is greater than 8 bytes；
B after) data collector receives the aeronautical data, data check is carried out to the aeronautical data；
C) judge whether the data check passes through, if so, command word of the data collector according to the start bit
Corresponding operation is executed, step D is executed)；Otherwise, the data collector, which returns, receives false command to the data collector
Monitor terminal；
D) judge whether to need to return band parameter instruction, if so, it is the first setting that the data collector, which returns to start bit,
The data of the fixed word joint number of value execute step E)；Otherwise, the data collector returns to the number that start bit is the second setting value
According to reception right instructions；
E) the data collector monitor terminal receives the data that the data collector is sent, and carries out data check,
And judge whether verification passes through, if so, the data collector monitor terminal is corresponding being shown to after the data processing received
Position；Otherwise, the information of the data collector monitor terminal prompt data check failure.
In the transmission method of aeronautical data of the present invention, the fixed word joint number is 58 bytes, the starting
The length of position is 1 byte, and the length of the data bit is 56 bytes, and the length of the check bit is 1 byte.
In the transmission method of aeronautical data of the present invention, when the data collector monitor terminal is to the data
When collector sends data, the start bit is to read channel parameters setting command word, setting channel parameters command word or logical
Road is arranged parameter and DATA FLASH is written；When the data collector sends data to the data collector monitor terminal,
The start bit is to receive data check bad command word, receive the correct return instruction command word of data or with parameter return instruction
Command word.
In the transmission method of aeronautical data of the present invention, first setting value is 0XEE, second setting
Value is 0XDA.
The invention further relates to a kind of devices of transmission method for realizing above-mentioned aeronautical data, comprising:
Aeronautical data transmission unit: for making the transmission of data collector monitor terminal meet setting format, fixed byte
Several aeronautical datas are to data collector；The setting format includes start bit, data bit and check bit；The length of the data bit
Degree is greater than 8 bytes；
Aeronautical data verification unit: after making the data collector receive the aeronautical data, to the aviation number
According to progress data check；
First data check judging unit: for judging whether the data check passes through, if so, the data collector
Corresponding operation is executed according to the command word of the start bit；Otherwise, the data collector, which returns, receives false command to institute
State data collector monitor terminal；
It returns to band parameter instruction judging unit: needing to return band parameter instruction for judging whether, if so, the data are adopted
Storage returns to the data for the fixed word joint number that start bit is the first setting value；Otherwise, the data collector return start bit is
The data receiver right instructions of second setting value；
Second data check judging unit: for making the data collector monitor terminal receive the data collector
The data of transmission carry out data check, and judge whether verification passes through, if so, the data collector monitor terminal is reception
To data processing after be shown to corresponding position；Otherwise, the letter of the data collector monitor terminal prompt data check failure
Breath.
In device of the present invention, the fixed word joint number is 58 bytes, and the length of the start bit is 1 word
Section, the length of the data bit are 56 bytes, and the length of the check bit is 1 byte.
In device of the present invention, when the data collector monitor terminal sends data to the data collector
When, the start bit is to read channel parameters setting command word, setting channel parameters command word or parameter is arranged in channel to be written
DATA FLASH；When the data collector sends data to the data collector monitor terminal, the start bit is to connect
It receives data check bad command word, receive the correct return instruction command word of data or with parameter return instruction command word.
In device of the present invention, first setting value is 0XEE, and second setting value is 0XDA.
The transmission method and device for implementing aeronautical data of the invention have the advantages that due to acquiring in data
When device and data collector monitor terminal carry out data transmission, the length for the data bit transmitted is greater than 8 bytes, that is, compares
Traditional protocol data digit is more, and the data transmitted every time so just will increase, so can thus simplify data
The communication of collector and data collector monitor terminal, improve data transfer efficiency, the expense of simplified control and verification.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the flow chart of method in aeronautical data transmission method of the present invention and device one embodiment；
Fig. 2 is the structural schematic diagram of device in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In aeronautical data transmission method of the present invention and Installation practice, the flow chart of aeronautical data transmission method is as schemed
Shown in 1.In Fig. 1, which includes the following steps:
Step S01 data collector monitor terminal, which is sent, meets setting format, fixed word joint number aeronautical data to number
According to collector: in this step, data collector monitor terminal send meet setting format, the aeronautical data of fixed word joint number to
Data collector.Above-mentioned setting format includes start bit, data bit and check bit；Wherein, the length of data bit is greater than 8 words
Section is greater than tradition UART serial port communicating protocol data bits.It is noted that fixed word joint number is 58 in the present embodiment
Byte, the length of start bit are 1 byte, and the length of data bit is 56 bytes, and the length of check bit is 1 byte.Certainly,
Under some cases of the present embodiment, the length of data bit is also possible to other numerical value greater than 8 bytes.Above-mentioned setting format
It is the equal of a communications protocol, which is exactly the UART serial ports on data collector and data acquisition monitor terminal
High efficiency communication agreement, that is, based on the basis of traditional UART serial port communicating protocol be used for data collector monitor terminal and number
According to the communications protocol between collector.Table 1 is the communications protocol that order length is 58 bytes.
Table 1
In table 1,00 is start bit and command word, 01 ..., 56 be data bit, 57 be check bit.In table 1, data
There are 56 byte datas in position, and the present embodiment can define the meaning of each byte as needed.When data collector monitor terminal to
When data collector sends data, start bit can use 0X55,0XAA or 0X5A, wherein and 0X55 indicates that reading channel parameters is arranged,
0XAA indicates that setting channel parameters, 0X5A indicate channel setting parameter that DATA FLASH is written.
The format of communications protocol when start bit takes 0X55 is as shown in table 2.
Table 2
| Byte number | Value | Meaning |
| 0 | 0X55 | Command word reads channel parameters setting |
| 1 | 0 | Useless byte |
| 2 | 1~15 | Port number, the data in which channel for needing to read |
| 03~56 | 0 | Useless byte |
| 57 | As needed | Check byte adds up whole bytes for 0xFF |
The format of communications protocol when start bit takes 0XAA is as shown in table 3.
Table 3
The format of communications protocol when start bit takes 0X5A is as shown in table 4.
Table 4
| Byte number | Value | Meaning |
| 0 | 0X5A | DATA FLASH is written in channel setting parameter by command word |
| 01 | 0 | Useless byte |
| 57 | As needed | Check word.58 byte datas, which are added, is equal to 0xFF |
When data collector sends data to data collector monitor terminal, start bit is to receive data check mistake life
It enables word, receive the correct return instruction command word of data or with parameter return instruction command word.Wherein, it is indicated to receive data with 0XDD
Check errors command word is indicated to receive the correct return instruction command word of data with 0XDA, be indicated with 0XEE with parameter return instruction
Command word.
The format of communications protocol when start bit takes 0XDD is as shown in table 5.
Table 5
The format of communications protocol when start bit takes 0XDA is as shown in table 6.
Table 6
The format of communications protocol when start bit takes 0XDA is as shown in table 7.
Table 7
In this step, in other words, data collector monitor terminal sends 58 started with 0X55,0XAA or 0X5A
The aeronautical data of byte length gives data collector end；It is 0X55,0XAA or 0X5A that data collector end, which receives start byte,
Aeronautical data.
After step S02 data collector receives aeronautical data, data check is carried out to aeronautical data: in this step, this step
In rapid, after data collector receives aeronautical data, data check is carried out to aeronautical data, and compare check byte data whether
Correctly.
Step S03 judges whether data check passes through: in this step, the verification for judging that data collector is carried out is
It is no to pass through, if it is determined that result be it is yes, then follow the steps S05；Otherwise, step S04 is executed.
Step S04 data collector returns to reception false command and gives data collector monitor terminal: if above-mentioned steps S03
Judging result be it is no, i.e., data check does not pass through, then executes this step.In this step, data collector, which returns, receives mistake
It instructs and gives data collector monitor terminal.
Step S05 data collector executes corresponding operation according to the command word of start bit: if above-mentioned steps S03's sentences
Disconnected result be it is yes, i.e., data check passes through, then executes this step.In this step, data collector is according to the command word of start bit
Execute corresponding operation.It executes the step, executes step S06.
Step S06 judges whether to need to return band parameter instruction: in this step, judging whether that needing to return band parameter refers to
Enable, if it is determined that result be it is yes, then follow the steps S08；Otherwise, step S07 is executed.
Step S07 data collector returns to the data receiver right instructions that start bit is the second setting value: if above-mentioned step
Suddenly the judging result of S06 is no, that is, needs to return then to execute this step without parameter instruction.In this step, data collector is returned
Return the data receiver right instructions that start bit is the second setting value.Second setting value is 0XDA.
Step S08 data collector returns to the data for the fixed word joint number that start bit is the first setting value: if above-mentioned step
Suddenly the judging result of S06 is yes, that is, needs to return band parameter instruction, then execute this step.In this step, data collector is returned
Start bit is the data of the fixed word joint number of the first setting value, which is 0XEE.In this step, specifically, just
It is the data for fixing 58 bytes that data collector returns to that start bit is 0XEE.This step has been executed, step S09 is executed.
It is noted that the length with parameter instruction is 58 bytes, without the length of parameter instruction in the present embodiment
For 1 byte.Start bit with parameter instruction is 0XEE, and 01~56 is data bit, and 57 be check byte.For referring to without parameter
For order, 0XDD indicates to receive false command；0XDA indicates data receiver right instructions.
Step S09 data collector monitor terminal receives the data of data collector transmission, carries out data check, and sentence
Whether disconnected verification passes through: in this step, data collector monitor terminal receives the data of data collector transmission, carries out first
Data check, and judge whether verification passes through.In this step, if it is determined that result be it is yes, i.e., verification pass through, then follow the steps
S11；If it is determined that result be it is no, that is, verify and do not pass through, then follow the steps S10.
Step S10 data collector monitor terminal prompts the information of data check failure: if the judgement of above-mentioned steps S09
As a result be it is no, then execute this step.In this step, data collector monitor terminal prompts the information of data check failure.
Step S11 data collector monitor terminal is being shown to corresponding position after the data processing received: if above-mentioned
The judging result of step S09 be it is yes, then execute this step.In this step, data collector monitor terminal is the data received
It is shown to corresponding position after treatment.The present invention can simplify the communication of data collector and data collector monitor terminal, mention
High data transmission efficiency, simplified control and the expense of verification, keep data-handling efficiency higher.
Data collector monitor terminal realizes that the different channels of configuration data collector, channel setting are read through the invention
And the operation such as write data Flash.Wherein the configuration content of data collector monitor terminal includes the error amount in each channel, adopts
Sample data type, the ratio of gains, 429 data lable (No. lable that meets the data of 429 agreements) and 429 data send interval
(the transmission interval for meeting the data of 429 agreements) etc..
The present embodiment further relates to a kind of device for realizing above-mentioned aeronautical data transmission method, structural schematic diagram such as Fig. 2 institute
Show.In Fig. 2, which includes aeronautical data transmission unit 101, aeronautical data verification unit 102, the first data check judgement list
Member 103 returns to band parameter instruction judging unit 104 and the second data check judging unit 105；Wherein, aeronautical data sends single
Member 101 is adopted for making the transmission of data collector monitor terminal meet setting format, fixed word joint number aeronautical data to data
Storage；Above-mentioned setting format includes start bit, data bit and check bit；The length of above-mentioned data bit is greater than 8 bytes.This implementation
In example, fixed word joint number is 58 bytes, and the length of start bit is 1 byte, and the length of data bit is 56 bytes, check bit
Length be 1 byte.Certainly, under some cases of the present embodiment, the length of data bit is also possible to other greater than 8 words
The numerical value of section.
After aeronautical data verification unit 102 is for making data collector receive aeronautical data, data are carried out to aeronautical data
Verification；First data check judging unit 103 is for judging whether data check passes through, if so, data collector is according to starting
The command word of position executes corresponding operation；Otherwise, data collector returns to reception false command and gives data collector monitor terminal.
In the present embodiment, when data collector monitor terminal sends data to data collector, start bit is to read channel parameters to set
It sets command word, setting channel parameters command word or DATA FLASH is written in channel setting parameter；When data collector is to data
When collector monitor terminal sends data, start bit is to receive data check bad command word, receive the correct return instruction of data
Command word or with parameter return instruction command word.
In the present embodiment, band parameter instruction judging unit 104 is returned for judging whether and needs to return band parameter instruction, such as
It is that data collector returns to the data for the fixed word joint number that start bit is the first setting value；Otherwise, data collector returns to starting
Position is the data receiver right instructions of the second setting value；First setting value is 0XEE, and the second setting value is 0XDA.Second data school
The data that judging unit 105 is used to that data collector monitor terminal to be made to receive data collector transmission are tested, data check is carried out,
And judge whether verification passes through, if so, data collector monitor terminal is being shown to corresponding position after the data processing received；
Otherwise, the information of data collector monitor terminal prompt data check failure.The present invention can simplify data collector and adopt with data
The communication of storage monitor terminal, improve data transfer efficiency, the expense of simplified control and verification, keep data-handling efficiency higher.
In short, in the present embodiment, the communications protocol in the present embodiment is divided into two parts, respectively data collector is monitored
Terminal sends data to data collector and data collector returns data to data collector monitor terminal.Entire communications protocol
Using fixed byte data, does not need to identify using stop position, data processing is made to get up to be more convenient quickly.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of aeronautical data transmission method, which comprises the steps of:
A) data collector monitor terminal, which is sent, meets setting format, fixed word joint number aeronautical data to data collector；
The setting format includes start bit, data bit and check bit；The length of the data bit is greater than 8 bytes；
B after) data collector receives the aeronautical data, data check is carried out to the aeronautical data；
C) judge whether the data check passes through, if so, the data collector is executed according to the command word of the start bit
Corresponding operation executes step D)；Otherwise, the data collector returns to reception false command and monitors to the data collector
Terminal；
D) judge whether to need to return band parameter instruction, if so, it is the first setting value that the data collector, which returns to start bit,
The data of fixed word joint number execute step E)；Otherwise, the data that the data collector returns to that start bit is the second setting value connect
Receive right instructions；
E) the data collector monitor terminal receives the data that the data collector is sent, and carries out data check, and sentence
Whether disconnected verification passes through, if so, the data collector monitor terminal is being shown to corresponding position after the data processing received；
Otherwise, the information of the data collector monitor terminal prompt data check failure.
2. aeronautical data transmission method according to claim 1, which is characterized in that the fixed word joint number is 58 words
Section, the length of the start bit are 1 byte, and the length of the data bit is 56 bytes, and the length of the check bit is 1
Byte.
3. aeronautical data transmission method according to claim 2, which is characterized in that when the data collector monitor terminal
When sending data to the data collector, the start bit is to read channel parameters setting command word, setting channel parameters life
It enables word or DATA FLASH is written in channel setting parameter；When the data collector is sent out to the data collector monitor terminal
When sending data, the start bit is to receive data check bad command word, receive the correct return instruction command word of data or with ginseng
Number return instruction command word.
4. aeronautical data transmission method according to claim 1, which is characterized in that first setting value is 0XEE, institute
Stating the second setting value is 0XDA.
5. a kind of device for realizing aeronautical data transmission method as described in claim 1 characterized by comprising
Aeronautical data transmission unit: setting format, fixed word joint number for meeting the transmission of data collector monitor terminal
Aeronautical data is to data collector；The setting format includes start bit, data bit and check bit；The length of the data bit is big
In 8 bytes；
Aeronautical data verification unit: after making the data collector receive the aeronautical data, to the aeronautical data into
Row data check；
First data check judging unit: for judging whether the data check passes through, if so, the data collector according to
The command word of the start bit executes corresponding operation；Otherwise, the data collector, which returns, receives false command to the number
According to collector monitor terminal；
It returns to band parameter instruction judging unit: needing to return band parameter instruction for judging whether, if so, the data collector
Return to the data for the fixed word joint number that start bit is the first setting value；Otherwise, it is second that the data collector, which returns to start bit,
The data receiver right instructions of setting value；
Second data check judging unit: it is sent for making the data collector monitor terminal receive the data collector
Data, data check is carried out, and judge whether verification passes through, if so, the data collector monitor terminal is receiving
Corresponding position is shown to after data processing；Otherwise, the information of the data collector monitor terminal prompt data check failure.
6. the device according to claim 5 for realizing aeronautical data transmission method as described in claim 1, feature exist
In the fixed word joint number is 58 bytes, and the length of the start bit is 1 byte, and the length of the data bit is 56
Byte, the length of the check bit are 1 byte.
7. the device according to claim 6 for realizing aeronautical data transmission method as described in claim 1, feature exist
In when the data collector monitor terminal sends data to the data collector, the start bit is to read channel ginseng
DATA FLASH is written in channel setting parameter by number setting command word, setting channel parameters command word；When the data acquire
When device sends data to the data collector monitor terminal, the start bit is to receive data check bad command word, receive
The correct return instruction command word of data or with parameter return instruction command word.
8. the device according to claim 5 for realizing aeronautical data transmission method as described in claim 1, feature exist
In first setting value is 0XEE, and second setting value is 0XDA.
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| CN110831010B (en) * | 2019-10-21 | 2024-04-16 | 上海鹄恩信息科技有限公司 | Multichannel data sending and receiving method and device and data transmission system |
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