CN105871510A - Method and device for transmitting aeronautical data - Google Patents
Method and device for transmitting aeronautical data Download PDFInfo
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- CN105871510A CN105871510A CN201610181252.8A CN201610181252A CN105871510A CN 105871510 A CN105871510 A CN 105871510A CN 201610181252 A CN201610181252 A CN 201610181252A CN 105871510 A CN105871510 A CN 105871510A
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Communication Control (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a method and device for transmitting aeronautical data. The method comprises the following steps that a monitor terminal of a data acquisition unit sends the aeronautical data which conforms to a set format and has a fixed number of bytes to the data acquisition unit; the data acquisition unit verifies the aeronautical data; if passing verification, the data acquisition unit executes corresponding operations according to a start bit, otherwise the data acquisition unit returns a wrong reception instruction to the monitor terminal of the data acquisition unit and judges whether to return a band parameter instruction, if yes, the data acquisition unit returns data having the fixed number of bytes, wherein the start bit of the data is a first set value, otherwise the data acquisition unit returns a correct reception instruction whose start bit is a second set value; and the monitor terminal of the data acquisition unit verifies the received data, if passing verification, the monitor terminal of the data acquisition unit displays after data processing, otherwise the monitor terminal of the data acquisition unit prompts that data verification is failed. The method and the device for transmitting the aeronautical data of the invention have the following beneficial effects that the communication between the data acquisition unit and the monitor terminal of the data acquisition unit can be simplified, the data transmission efficiency is improved and the expenditure for control and verification is reduced.
Description
Technical field
The present invention relates to field of data transmission, particularly to transmission method and the device of a kind of aeronautical data.
Background technology
Data acquisition unit and data acquisition unit monitor terminal, when carrying out communication, are both-way communications, i.e. data
Collector can send data to data acquisition unit monitor terminal, and data acquisition unit monitor terminal can also be to number
Sending data according to collector, data acquisition unit and data acquisition unit monitor terminal are designed with UART serial ports, number
Communication is carried out by UART serial port communicating protocol according to collector and data acquisition unit monitor terminal.Existing
UART serial port communicating protocol data bits is not enough, and data bit at most can be configured to 8, it is impossible to well mates
The application of data acquisition unit.It addition, data acquisition unit is complex with the communication of data acquisition unit monitor terminal,
Data transmission efficiency is relatively low, controls bigger with the expense of verification.
Summary of the invention
The technical problem to be solved in the present invention is, for above-mentioned data acquisition unit and the data acquisition of prior art
The communication of storage monitor terminal is complex, data transmission efficiency is relatively low, it is bigger with the expense of verification to control
Defect, it is provided that a kind of can simplify the communication of data acquisition unit and data acquisition unit monitor terminal, improve data and pass
Defeated efficiency, the transmission method simplifying the aeronautical data controlling the expense with verification and device.
The technical solution adopted for the present invention to solve the technical problems is: construct the transmission side of a kind of aeronautical data
Method, comprises the steps:
A) data acquisition unit monitor terminal sends to meet and sets form, fixed word joint number aeronautical data to number
According to collector；Described setting form includes start bit, data bit and check bit；The length of described data bit is big
In 8 bytes；
B), after described data acquisition unit receives described aeronautical data, described aeronautical data is carried out data check；
C) judging whether described data check passes through, in this way, described data acquisition unit is according to described start bit
Command word performs corresponding operation, performs step D)；Otherwise, described data acquisition unit return reception mistake refers to
Order is to described data acquisition unit monitor terminal；
D) judging whether to need to return band parameter instruction, in this way, it is that described data acquisition unit returns start bit
The data of the fixed word joint number of one setting value, perform step E)；Otherwise, described data acquisition unit returns initial
Position is the data receiver right instructions of the second setting value；
E) described data acquisition unit monitor terminal receives the data that described data acquisition unit sends, and carries out data
Verification, and judge to verify and whether pass through, in this way, described data acquisition unit monitor terminal is the data received
Relevant position it is shown to after process；Otherwise, described data acquisition unit monitor terminal points out data check failure
Information.
In the transmission method of aeronautical data of the present invention, described fixed word joint number is 58 bytes, institute
State a length of 1 byte of start bit, a length of 56 bytes of described data bit, the length of described check bit
Degree is 1 byte.
In the transmission method of aeronautical data of the present invention, when described data acquisition unit monitor terminal is to institute
When stating data acquisition unit transmission data, described start bit is for reading channel parameters setting command word, arranging passage
Parameter command word or passage is arranged parameter read-in DATA FLASH；When described data acquisition unit is to described number
When sending data according to collector monitor terminal, described start bit is for receiving data check bad command word, reception
Data correct return instruction command word or band parameter return instruction command word.
In the transmission method of aeronautical data of the present invention, described first setting value is 0XEE, described
Two setting values are 0XDA.
The invention still further relates to the device of a kind of transmission method realizing above-mentioned aeronautical data, including:
Aeronautical data transmitting element: setting form, solid for making the transmission of data acquisition unit monitor terminal meet
Determine the aeronautical data of byte number to data acquisition unit；Described setting form includes start bit, data bit and verification
Position；The length of described data bit is more than 8 bytes；
Aeronautical data verification unit: after being used for making described data acquisition unit receive described aeronautical data, to described
Aeronautical data carries out data check；
First data check judging unit: be used for judging whether described data check passes through, in this way, described number
Corresponding operation is performed according to the command word of described start bit according to collector；Otherwise, described data acquisition unit returns
Tieback receives false command to described data acquisition unit monitor terminal；
Return band parameter instruction judging unit: be used for judging whether to need to return band parameter instruction, in this way, institute
State data acquisition unit and return the data of the fixed word joint number that start bit is the first setting value；Otherwise, described data
Collector returns the data receiver right instructions that start bit is the second setting value；
Second data check judging unit: be used for making described data acquisition unit monitor terminal receive described data
Whether the data that collector sends, carry out data check, and judge to verify and pass through, in this way, and described data acquisition
Storage monitor terminal is shown to relevant position after the data received are processed；Otherwise, described data acquisition unit
The information that monitor terminal prompting data check is failed.
In device of the present invention, described fixed word joint number is 58 bytes, the length of described start bit
It is 1 byte, a length of 56 bytes of described data bit, a length of 1 byte of described check bit.
In device of the present invention, when described data acquisition unit monitor terminal is sent out to described data acquisition unit
When sending data, described start bit is for reading channel parameters setting command word, arranging channel parameters command word or handle
Passage arranges parameter read-in DATA FLASH；When described data acquisition unit is whole to the monitoring of described data acquisition unit
When end sends data, described start bit is reception data check bad command word, reception data correctly return and refer to
Make command word or band parameter return instruction command word.
In device of the present invention, described first setting value is 0XEE, and described second setting value is
0XDA。
Implement transmission method and the device of the aeronautical data of the present invention, have the advantages that owing to counting
When carrying out data transmission according to collector and data acquisition unit monitor terminal, the length of the data bit transmitted is more than 8
Individual byte, namely many than traditional protocol data figure place, the data of transmission will increase the most every time
Add, so data acquisition unit and the communication of data acquisition unit monitor terminal thus can be simplified, improves data
Efficiency of transmission, simplification control and the expense of verification.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of method in aeronautical data transmission method of the present invention and one embodiment of device；
Fig. 2 is the structural representation of device in described embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
In aeronautical data transmission method of the present invention and device embodiment, the flow process of its aeronautical data transmission method
Figure is as shown in Figure 1.In Fig. 1, this aeronautical data transmission method comprises the steps:
Step S01 data acquisition unit monitor terminal sends and meets setting form, the aviation number of fixed word joint number
According to data acquisition unit: in this step, the transmission of data acquisition unit monitor terminal meets setting form, fixing
The aeronautical data of byte number is to data acquisition unit.Above-mentioned setting form includes start bit, data bit and check bit；
Wherein, the length of data bit is more than 8 bytes, more than tradition UART serial port communicating protocol data bits.
It is noted that in the present embodiment, fixed word joint number is 58 bytes, a length of 1 word of start bit
Joint, a length of 56 bytes of data bit, a length of 1 byte of check bit.Certainly, at the present embodiment
Certain situation under, the length of data bit can also be greater than other numerical value of 8 bytes.Above-mentioned setting lattice
Formula is the equal of a communications protocol, and this communications protocol is exactly in data acquisition unit and data acquisition monitoring terminal
The high efficiency communication agreement of UART serial ports, namely based on tradition UART serial port communicating protocol on the basis of
Communications protocol between data acquisition unit monitor terminal and data acquisition unit.Table 1 is order a length of 58
The communications protocol of individual byte.
Table 1
In table 1,00 is start bit, is also command word, 01 ..., 56 is data bit, and 57 is check bit.
In table 1, data bit has 56 byte datas, and the present embodiment can define the implication of each byte as required.
When data acquisition unit monitor terminal to data acquisition unit send data time, start bit desirable 0X55,0XAA or
0X5A, wherein, 0X55 represents that reading channel parameters is arranged, and 0XAA represents and arranges channel parameters, 0X5A
Represent and passage is arranged parameter read-in DATA FLASH.
The form of communications protocol when start bit takes 0X55 is as shown in table 2.
Table 2
| Byte number | Value | Implication |
| 0 | 0X55 | Command word, reads channel parameters and arranges |
| 1 | 0 | Useless byte |
| 2 | 1～15 | Port number, needs the data of which passage read |
| 03～56 | 0 | Useless byte |
| 57 | As required | Check byte, makes whole byte add up as 0xFF |
The form of communications protocol when start bit takes 0XAA is as shown in table 3.
Table 3
The form of communications protocol when start bit takes 0X5A is as shown in table 4.
Table 4
| Byte number | Value | Implication |
| 0 | 0X5A | Command word, arranges parameter read-in DATA FLASH passage |
| 01～56 | 0 | Useless byte |
| 57 | As required | Check word.58 byte datas are added equal to 0xFF |
When data acquisition unit sends data to data acquisition unit monitor terminal, start bit is for receiving data check
Bad command word, reception data correct return instruction command word or band parameter return instruction command word.Wherein,
Represent reception data check bad command word with 0XDD, represent the reception correct return instruction of data with 0XDA
Command word, represents band parameter return instruction command word with 0XEE.
The form of communications protocol when start bit takes 0XDD is as shown in table 5.
Table 5
The form of communications protocol when start bit takes 0XDA is as shown in table 6.
Table 6
The form of communications protocol when start bit takes 0XDA is as shown in table 7.
Table 7
In this step, in other words, data acquisition unit monitor terminal sends with 0X55,0XAA or 0X5A
The aeronautical data of 58 byte lengths started is to data acquisition unit end；Data acquisition unit end receives start byte
Aeronautical data for 0X55,0XAA or 0X5A.
Step S02 data acquisition unit receives after aeronautical data, and aeronautical data carries out data check: this step
In, in this step, after data acquisition unit receives aeronautical data, aeronautical data is carried out data check, and right
More correct than the data of check byte.
Step S03 judges whether data check passes through: in this step, it is judged that the institute that data acquisition unit is carried out
State verification whether pass through, if it is determined that result be yes, then execution step S05；Otherwise, step S04 is performed.
Step S04 data acquisition unit returns and receives false command to data acquisition unit monitor terminal: if above-mentioned
The judged result of step S03 is no, i.e. data check does not passes through, then perform this step.In this step, number
Return according to collector and receive false command to data acquisition unit monitor terminal.
Step S05 data acquisition unit performs to operate accordingly according to the command word of start bit: if above-mentioned steps
The judged result of S03 is yes, i.e. data check passes through, then perform this step.In this step, data acquisition unit
Command word according to start bit performs corresponding operation.Execution of step, performs step S06.
Step S06 judges whether to need to return band parameter instruction: in this step, it may be judged whether need to return band
Parameter instruction, if it is determined that result be yes, then perform step S08；Otherwise, step S07 is performed.
Step S07 data acquisition unit returns the data receiver right instructions that start bit is the second setting value: if
The judged result of above-mentioned steps S06 is no, i.e. needs to return without parameter instruction, then performs this step.This
In step, data acquisition unit returns the data receiver right instructions that start bit is the second setting value.This second sets
Definite value is 0XDA.
Step S08 data acquisition unit returns the data of the fixed word joint number that start bit is the first setting value: if
The judged result of above-mentioned steps S06 is yes, i.e. needs to return band parameter instruction, then performs this step.This step
In Zhou, data acquisition unit returns the data of the fixed word joint number that start bit is the first setting value, this first setting
Value is 0XEE.In this step, specifically, it is simply that it is the fixing of 0XEE that data acquisition unit returns start bit
The data of 58 bytes.Perform this step, perform step S09.
It is noted that in the present embodiment, a length of 58 bytes of band parameter instruction, refer to without parameter
A length of 1 byte of order.Start bit with parameter instruction is 0XEE, and 01～56 is data bit, and 57 is school
Test byte.For without parameter instruction, 0XDD represents reception false command；0XDA represents that data connect
Receive right instructions.
Step S09 data acquisition unit monitor terminal receives the data that data acquisition unit sends, and carries out data school
Test, and judge to verify and whether pass through: in this step, data acquisition unit monitor terminal receives data acquisition unit
Whether the data sent, first carry out data check, and judge to verify and pass through.In this step, if it is determined that
Result be yes, i.e. verification pass through, then perform step S11；If it is determined that result be no, i.e. verify obstructed
Cross, then perform step S10.
The information that step S10 data acquisition unit monitor terminal prompting data check is failed: if above-mentioned steps S09
Judged result be no, then perform this step.In this step, data acquisition unit monitor terminal prompting data school
Test the information of failure.
Step S11 data acquisition unit monitor terminal is shown to relevant position after the data received are processed: as
Really the judged result of above-mentioned steps S09 is yes, then perform this step.In this step, data acquisition unit monitors
Terminal is shown to relevant position after treatment the data received.The present invention can simplify data acquisition unit with
The communication of data acquisition unit monitor terminal, raising data transmission efficiency, simplification control and the expense of verification, make
Data-handling efficiency is higher.
Data acquisition unit monitor terminal realizes configuring the different passages of data acquisition unit by the present invention, passage sets
Put reading and write the operations such as data Flash.Wherein the configuration content of data acquisition unit monitor terminal includes each
The error amount of passage, sampled data type, the ratio of gains, 429 data lable (meet the number of 429 agreements
According to No. lable) and 429 data send interval (meet 429 agreements data transmission interval) etc..
The present embodiment further relates to a kind of device realizing above-mentioned aeronautical data transmission method, and its structural representation is such as
Shown in Fig. 2.In Fig. 2, this device include aeronautical data transmitting element 1, aeronautical data verification unit 2,
One data check judging unit 3, return band parameter instruction judging unit 4 and the second data check judging unit 5；
Wherein, aeronautical data transmitting element 1 for make data acquisition unit monitor terminal send to meet to set form,
The aeronautical data of fixed word joint number is to data acquisition unit；Above-mentioned setting form includes start bit, data bit and school
Test position；The length of above-mentioned data bit is more than 8 bytes.In the present embodiment, fixed word joint number is 58 bytes,
A length of 1 byte of start bit, a length of 56 bytes of data bit, a length of 1 word of check bit
Joint.Certainly, under the certain situation of the present embodiment, the length of data bit can also be that other are more than 8 words
The numerical value of joint.
After aeronautical data verification unit 2 is used for making data acquisition unit receive aeronautical data, aeronautical data is carried out
Data check；First data check judging unit 3 is used for judging whether data check passes through, in this way, and data
Collector performs corresponding operation according to the command word of start bit；Otherwise, data acquisition unit returns and receives mistake
Instruction is to data acquisition unit monitor terminal.In the present embodiment, when data acquisition unit monitor terminal is to data acquisition
When device sends data, start bit is for reading channel parameters setting command word, arranging channel parameters command word or handle
Passage arranges parameter read-in DATA FLASH；When data acquisition unit sends number to data acquisition unit monitor terminal
According to time, start bit is for receiving data check bad command word, receiving data correct return instruction command word or band
Parameter return instruction command word.
In the present embodiment, return band parameter instruction judging unit 4 and be used for judging whether that needing to return band parameter refers to
Order, in this way, data acquisition unit returns the data of the fixed word joint number that start bit is the first setting value；Otherwise,
Data acquisition unit returns the data receiver right instructions that start bit is the second setting value；First setting value is
0XEE, the second setting value is 0XDA.Second data check judging unit 5 is used for making data acquisition unit monitor
Whether terminal receives the data that data acquisition unit sends, and carries out data check, and judge to verify and pass through, as
It is that data acquisition unit monitor terminal is shown to relevant position after the data received are processed；Otherwise, data
The information that collector monitor terminal prompting data check is failed.The present invention can simplify data acquisition unit and data acquisition
The communication of storage monitor terminal, raising data transmission efficiency, simplification control and the expense of verification, make at data
Manage in hgher efficiency.
In a word, in the present embodiment, the communications protocol in the present embodiment is divided into two parts, respectively data acquisition
Storage monitor terminal sends data to data acquisition unit and data acquisition unit returns data to data acquisition unit monitoring
Terminal.Whole communications protocol uses fixed byte data, it is not necessary to uses and stops position identification, makes data process
Get up more convenient quickly.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (8)
1. an aeronautical data transmission method, it is characterised in that comprise the steps:
A) data acquisition unit monitor terminal sends to meet and sets form, fixed word joint number aeronautical data to number
According to collector；Described setting form includes start bit, data bit and check bit；The length of described data bit is big
In 8 bytes；
B), after described data acquisition unit receives described aeronautical data, described aeronautical data is carried out data check；
C) judging whether described data check passes through, in this way, described data acquisition unit is according to described start bit
Command word performs corresponding operation, performs step D)；Otherwise, described data acquisition unit return reception mistake refers to
Order is to described data acquisition unit monitor terminal；
D) judging whether to need to return band parameter instruction, in this way, it is that described data acquisition unit returns start bit
The data of the fixed word joint number of one setting value, perform step E)；Otherwise, described data acquisition unit returns initial
Position is the data receiver right instructions of the second setting value；
E) described data acquisition unit monitor terminal receives the data that described data acquisition unit sends, and carries out data
Verification, and judge to verify and whether pass through, in this way, described data acquisition unit monitor terminal is the data received
Relevant position it is shown to after process；Otherwise, described data acquisition unit monitor terminal points out data check failure
Information.
Aeronautical data transmission method the most according to claim 1, it is characterised in that described fixed byte
Number is 58 bytes, a length of 1 byte of described start bit, a length of 56 words of described data bit
Joint, a length of 1 byte of described check bit.
Aeronautical data transmission method the most according to claim 2, it is characterised in that when described data acquisition
Storage monitor terminal is when described data acquisition unit sends data, and described start bit is arranged for reading channel parameters
Command word, channel parameters command word is set or passage is arranged parameter read-in DATA FLASH；When described number
According to collector when described data acquisition unit monitor terminal sends data, described start bit is for receiving data check
Bad command word, reception data correct return instruction command word or band parameter return instruction command word.
Aeronautical data transmission method the most according to claim 1, it is characterised in that described first sets
Value is 0XEE, and described second setting value is 0XDA.
5. the device realizing aeronautical data transmission method as claimed in claim 1, it is characterised in that
Including:
Aeronautical data transmitting element: setting form, fixing for making the transmission of data acquisition unit monitor terminal meet
The aeronautical data of byte number is to data acquisition unit；Described setting form includes start bit, data bit and check bit；
The length of described data bit is more than 8 bytes；
Aeronautical data verification unit: after being used for making described data acquisition unit receive described aeronautical data, to described boat
Empty data carry out data check；
First data check judging unit: be used for judging whether described data check passes through, in this way, described data
Collector performs corresponding operation according to the command word of described start bit；Otherwise, described data acquisition unit returns
Receive false command to described data acquisition unit monitor terminal；
Return band parameter instruction judging unit: be used for judging whether to need to return band parameter instruction, in this way, described
Data acquisition unit returns the data of the fixed word joint number that start bit is the first setting value；Otherwise, described data acquisition
Storage returns the data receiver right instructions that start bit is the second setting value；
Second data check judging unit: be used for making described data acquisition unit monitor terminal receive described data acquisition
Whether the data that storage sends, carry out data check, and judge to verify and pass through, in this way, and described data acquisition
Device monitor terminal is shown to relevant position after the data received are processed；Otherwise, described data acquisition unit prison
The information that control terminal prompting data check is failed.
The dress of realization the most according to claim 5 aeronautical data as claimed in claim 1 transmission method
Put, it is characterised in that described fixed word joint number is 58 bytes, a length of 1 byte of described start bit,
A length of 56 bytes of described data bit, a length of 1 byte of described check bit.
The dress of realization the most according to claim 6 aeronautical data as claimed in claim 1 transmission method
Put, it is characterised in that when described data acquisition unit monitor terminal sends data to described data acquisition unit,
Described start bit is for reading channel parameters setting command word, arranging channel parameters command word or passage is arranged ginseng
Number write DATA FLASH；When described data acquisition unit sends data to described data acquisition unit monitor terminal
Time, described start bit for receive data check bad command word, receive data correct return instruction command word or
Band parameter return instruction command word.
The dress of realization the most according to claim 5 aeronautical data as claimed in claim 1 transmission method
Putting, it is characterised in that described first setting value is 0XEE, described second setting value is 0XDA.
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| CN110831010A (en) * | 2019-10-21 | 2020-02-21 | 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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