CN105897513B - A kind of data transmission method containing time-parameters - Google Patents
A kind of data transmission method containing time-parameters Download PDFInfo
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- CN105897513B CN105897513B CN201610329154.4A CN201610329154A CN105897513B CN 105897513 B CN105897513 B CN 105897513B CN 201610329154 A CN201610329154 A CN 201610329154A CN 105897513 B CN105897513 B CN 105897513B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3009—Header conversion, routing tables or routing tags
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- Computer Networks & Wireless Communication (AREA)
- Data Mining & Analysis (AREA)
- Communication Control (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention discloses a kind of data transmission methods containing time-parameters, belong to field of data transmission, this method includes using real time data frame, the real time data frame includes the frame head as the real time data frame lead-in, with the postamble as real time data frame end word, the real time data frame further includes the time variable code for recording time-parameters variable quantity, for judging the whether changed mask off code of every kind of time-parameters, and the device data code for recording equipment acquisition data, the time variable code, between the byte that the byte that the mask off code and the device data code are included is located at the frame head byte for being included and the postamble is included, pass through the time variable code, temporal information is produced with the mask off code.Above-mentioned data transmission method provided by the invention transmits temporal information using the transmission thought of increment, and the number that temporal information occupies word is greatly decreased, improves the efficiency of transmission of real time data frame.
Description
Technical field
The present invention relates to field of data transmission more particularly to a kind of data transmission methods containing time-parameters.
Background technique
Under the application of hard real-time and high reliability, in order to monitor the operating status for using equipment and processing in time
Using equipment fault, need to be transmitted in monitoring device in real time using the operation data of equipment by high-speed figure bus.
In order to guarantee to transmit the real-time and accuracy of data, it usually needs transmission data meet following require: 1, the mistake of data transmission
The temporal information 3 ' namely usual data that must be instantaneously captured comprising equipment operating data and when acquiring equipment operating data in journey
Real time data frame in transport protocol is by frame head 1 ', alphanumeric code 2 ', 5 ' group of temporal information 3 ', device data code 4 ' and postamble
At；2, higher data transmission frequencies are needed, usual data transfer cycle is the Millisecond period, and should also ensure that bus bandwidth
It is sufficiently wide.
The word occupied in existing data transmission frames is more, and transmission efficiency is low for data, for example, as shown in figure 3, life is auxiliary
The temporal information 3 ' for helping the data transmission frames in pumping system includes the information such as year, month, day, hour, min, second and millisecond, Mei Gexin
Breath, which occupies, includes at least 7 words in a word namely temporal information 3 ', device data code 4 ' include voltage, electric current, revolving speed with
And 4 words are included at least in the information such as flow namely device data code 4 ', in addition frame head 1 ', postamble 5 ' and alphanumeric code 2 ' are each
Account for a word namely existing life auxiliary pumping system in real time data frame include at least 14 words, and wherein 7 be used for word
Indicate temporal information 3 ', only 4 words are used for device data, and this occupancy of data transmission method temporal information 3 ' word is too many, transmission
Efficiency is lower.
Summary of the invention
In order to overcome the drawbacks of the prior art, a kind of containing time-parameters technical problem to be solved by the present invention lies in proposing
Data transmission method, using the transmission thought of increment temporal information is transmitted, temporal information is greatly decreased and occupies word
Number improves the efficiency of transmission of real time data frame.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of data transmission method containing time-parameters provided by the invention carries out bus data biography using real time data frame
Defeated step, the real time data frame include the frame head as the real time data frame lead-in, and as the real time data frame
The postamble of last word, the real time data frame further include for recording the time variable code of time-parameters variable quantity, for judging often
The whether changed mask off code of the kind time-parameters and the device data code that data are acquired for recording equipment, it is described
The byte that time variable code, the mask off code and the device data code are included be located at byte that the frame head is included with
Between the byte that the postamble is included, temporal information is produced by the time variable code and the mask off code.
Further technical solution of the present invention: the time variable code and the mask off code are each configured to by a word group
At.
Further technical solution of the present invention: the mask off code is configured to the word being made of 16bit, wherein and bit8~
The state value of bit16 be always 0, bit7~bit0 state value be respectively used to indicate in the time-parameters corresponding year, the moon,
Day, when, whether minute, second and millisecond change.
When one or more state value in bit7~bit0 is 1, one in the corresponding time parameter is indicated
It is a or multiple change；
When one or more state value in bit7~bit0 is 0, one in the corresponding time parameter is indicated
It is a or multiple do not change.
Further technical solution of the present invention: the real time data frame further includes alphanumeric code, and the alphanumeric code is for recording
The sum for the word for including in the real time data frame.
Further technical solution of the present invention: the byte that the alphanumeric code is included is located at the byte that the frame head is included
Between the byte for being included with the mask off code.
Further technical solution of the present invention: the real time data frame is used for pump control system, the device data code packet
Include voltage data, current data, rotary speed data and data on flows.
Further technical solution of the present invention: the voltage data, the current data, the rotary speed data and described
Between the byte that the byte that data on flows is included is located at the time variable code byte for being included and the postamble is included.
Further technical solution of the present invention: the voltage data, the current data, the rotary speed data and described
Data on flows is each configured to be made of a word.
Further technical solution of the present invention: when the temporal information changes, the time variable code, the screen
The a part for covering code as the real time data frame is transmitted by data/address bus；When the temporal information does not change
When, the time variable code, the mask off code are not transmitted.
The invention has the benefit that
Data transmission method provided by the invention containing time-parameters, the time variable code provided with producible temporal information
And mask off code, the number of words that time variable code and mask off code occupy is far less than times such as year, month, day, hour, min, second and milliseconds
The number of words that information occupies improves efficiency of transmission so that total number of word shared by real time data frame substantially reduces.Further,
Time variable code and mask off code are each configured to be made of a word, for assisting pumping system at this point for life, entire number in real time
It reduces according to number of words to 9 words and forms, wherein 4 words are used for device data, life auxiliary pumping system compared to the prior art is adopted
For mode with 14 words, using the data transmission method in the application, efficiency of transmission will be greatly improved.
Detailed description of the invention
Fig. 1 is the signal of the transport protocol for the data transmission method containing time-parameters that the specific embodiment of the invention provides
Figure；
Fig. 2 is the schematic diagram for the mask off code that the specific embodiment of the invention provides；
Fig. 3 is the signal of the transport protocol of the data transmission method containing time-parameters provided in background of invention
Figure.
In figure:
1, frame head；2, alphanumeric code；3, mask off code；4, time variable code；5, device data code；51, voltage data；52, electric
Flow data；53, rotary speed data；54, data on flows；6, postamble；1 ', frame head；2 ', alphanumeric code；3 ', temporal information；4 ', number of devices
According to code；5 ', postamble.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
As shown in Figure 1, a kind of data transmission method containing time-parameters provided in the present embodiment one, including real time data
Frame, real time data frame are transmitted in the bus, and real time data frame includes frame head 1, alphanumeric code 2, mask off code 3, time variable code
4, device data code 5 and postamble 6.Lead-in of the frame head 1 as real time data frame can use hexadecimal number for fixed frame head
0xAA55 is indicated；Last word of the postamble 6 as real time data frame is also fixed frame head, can be indicated with hexadecimal number 0x55AA.Word
The sum of word of the number 2 for including in recording real-time data frame, i.e. real time data frame includes how many a words in total.Mask off code 3
For judging whether every kind of time-parameters change, if certain changes, the state value of corresponding positions is 1；If generation
Variation, the state value of corresponding positions are 0.Time variable code 4 is used to record the increasing of time-parameters variable quantity namely time parameter
Amount can be one or more sixteen bit word, such as: every 10s carries out a data transmission, then the millisecond number of time variable code 4
It just updates once, and updates for the every transmission of second data 100 times primary according to every transmission 1 time.Device data code 5 is acquired for recording equipment
Data, such as: the data such as voltage or electric current.Alphanumeric code 2, time variable code 4, mask off code 3 and device data code 5 are included
Between the byte that byte is located at the byte for being included of frame head 1 and postamble 6 is included, and become according to alphanumeric code 2, mask off code 3, time
The sequence of amount code 4 and device data code 5 is arranged successively.Temporal information is produced by time variable code 4 and mask off code 3, and
The number for the word that time variable code 4 and mask off code 3 occupy is far less than temporal informations such as year, month, day, hour, min, second and milliseconds
The number of words of occupancy improves the efficiency of transmission of real time data frame so that total number of word shared by real time data frame greatly reduces,
Data-signal real-time delivery is also achieved the effect that simultaneously.
Further technical solution, time variable code 4 and mask off code 3 are each configured to be made of a word, at this point for life
For life auxiliary pumping system, entire real time data number of words is reduced to 9 words and is formed, life auxiliary pump system compared to the prior art
For system is by the way of 14 words, efficiency of transmission is greatly improved.
Further technical solution, as shown in Fig. 2, be the hexadecimal bitmap of mask off code 3, mask off code 3 be configured to by
The word of 16bit composition, when wherein the state value of bit8~bit16 is always that 0, bit7~bit0 state value is respectively used to indicate
Between in parameter corresponding year, month, day, hour, min, second and millisecond whether change, certainly, in the quantity variation of time-parameters,
It can also increase or reduce the digit that state value is always 0 to be adjusted.When one or more shape in bit7~bit0
When state value is 1, one or more for indicating in corresponding time parameter changes；When one in bit7~bit0 or
When multiple state values are 0, one or more for indicating in corresponding time parameter does not change.Such as: every 10s carries out one
Secondary data transmission, then the millisecond of mask off code 3 is always 1 in place, and is updated for the every transmission in place of second institute 100 times primary.
Further technical solution, real time data frame assist pump control system for life, and device data code 5 includes voltage
Data 51, current data 52, rotary speed data 53 and data on flows 54, voltage data 51, current data 52, rotary speed data 53 with
And data on flows 54 respectively represents life auxiliary pump control system voltage value, current value, tachometer value and flow value.Voltage data
51, the byte that current data 52, rotary speed data 53 and data on flows 54 are included is respectively positioned on the word that time variable code 4 is included
Between the byte that section and postamble 6 are included.It is further preferred that voltage data 51, current data 52, rotary speed data 53 and stream
Amount data 54 are each configured to be made of a word, to reduce the total number of word of real time data frame.
Further technical solution, when temporal information changes, time variable code 4, mask off code 3 are used as real time data
A part of frame is transmitted by data/address bus, and when temporal information does not change, time variable code 4, mask off code 3 are not passed
It is defeated, i.e., do not include time variable code 4,3 information of mask off code in real time data frame, only includes other information.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (9)
1. a kind of data transmission method containing time-parameters includes the steps that carrying out bus data transfer using real time data frame,
The real time data frame includes the frame head (1) as the real time data frame lead-in, and as real time data frame end word
Postamble (6), it is characterised in that:
The real time data frame further includes for recording the time variable code (4) of time-parameters variable quantity, for judging every kind of institute
State the whether changed mask off code (3) of time-parameters and the device data code (5) for recording equipment acquisition data, institute
It states the byte that time variable code (4), the mask off code (3) and the device data code (5) are included and is located at the frame head (1)
Between the byte that the byte for being included and the postamble (6) are included；
Temporal information is produced by the time variable code (4) and the mask off code (3).
2. the data transmission method according to claim 1 containing time-parameters, it is characterised in that:
The time variable code (4) and the mask off code (3) are each configured to be made of a word.
3. the data transmission method according to claim 2 containing time-parameters, it is characterised in that:
The mask off code (3) is configured to the word being made of 16bit；
Wherein the state value of bit8~bit16 is always that 0, bit7~bit0 state value is respectively used to indicate the time-parameters
In corresponding year, month, day, hour, min, second and millisecond whether change；
When one or more state value in bit7~bit0 is 1, indicate one in the corresponding time-parameters or
Person is multiple to change；
When one or more state value in bit7~bit0 is 0, indicate one in the corresponding time-parameters or
Person is multiple not to change.
4. the data transmission method according to claim 1 or 2 or 3 containing time-parameters, it is characterised in that:
The real time data frame further includes alphanumeric code (2)；
The alphanumeric code (2) is used to record the sum for the word for including in the real time data frame.
5. the data transmission method according to claim 4 containing time-parameters, it is characterised in that:
The byte that the alphanumeric code (2) is included is located at the byte that the frame head (1) is included
Byte between.
6. the data transmission method according to claim 1 or 2 or 3 containing time-parameters, it is characterised in that:
The real time data frame is used for pump control system；
The device data code (5) includes voltage data (51), current data (52), rotary speed data (53) and data on flows
(54)。
7. the data transmission method according to claim 6 containing time-parameters, it is characterised in that:
The voltage data (51), the current data (52), the rotary speed data (53) and the data on flows (54) institute
Between the byte that the byte for including is respectively positioned on time variable code (4) byte for being included and the postamble (6) is included.
8. the data transmission method according to claim 6 containing time-parameters, it is characterised in that:
The voltage data (51), the current data (52), the rotary speed data (53) and the data on flows (54) are equal
It is configured to be made of a word.
9. the data transmission method according to claim 1 containing time-parameters, it is characterised in that:
When the temporal information changes, the time variable code (4), the mask off code (3) are used as the real time data
A part of frame is transmitted by data/address bus；
When the temporal information does not change, the time variable code (4), the mask off code (3) are not transmitted.
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| CN201610329154.4A CN105897513B (en) | 2016-05-18 | 2016-05-18 | A kind of data transmission method containing time-parameters |
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| CN105897513B true CN105897513B (en) | 2019-01-15 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158721A2 (en) * | 2000-05-25 | 2001-11-28 | Sony Corporation | Method of controlling transmission and apparatus for controlling transmission |
| CN104935527A (en) * | 2015-06-12 | 2015-09-23 | 福建新大陆电脑股份有限公司 | Data packing method of audio communication |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158721A2 (en) * | 2000-05-25 | 2001-11-28 | Sony Corporation | Method of controlling transmission and apparatus for controlling transmission |
| CN104935527A (en) * | 2015-06-12 | 2015-09-23 | 福建新大陆电脑股份有限公司 | Data packing method of audio communication |
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Effective date of registration: 20200103 Address after: 300457 workshop b3-04, b3-05 and b3-06, No. 17, No. 80, Haiyun street, Binhai New Area, Tianjin Patentee after: Aerospace Tai Xin Technology Co., Ltd. Address before: 100076 Beijing City, Fengtai District Dahongmen South East Highland Road No. 1 Patentee before: Beijing Research Institute of Precise Mechatronic Controls |