CN106027686A - Enhanced type MODBUS communication protocol based on MPEG-2 - Google Patents
Enhanced type MODBUS communication protocol based on MPEG-2 Download PDFInfo
- Publication number
- CN106027686A CN106027686A CN201610629589.0A CN201610629589A CN106027686A CN 106027686 A CN106027686 A CN 106027686A CN 201610629589 A CN201610629589 A CN 201610629589A CN 106027686 A CN106027686 A CN 106027686A
- Authority
- CN
- China
- Prior art keywords
- data
- field
- mpeg
- communication protocol
- modbus communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006854 communication Effects 0.000 title claims abstract description 43
- 238000004891 communication Methods 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000013461 design Methods 0.000 claims abstract description 10
- 238000012937 correction Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000004899 motility Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
Classifications
-
- 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
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
Abstract
The invention discloses an enhanced type MODBUS communication protocol based on MPEG-2. A transmission frame format comprises an ADU application data unit, the ADU application data unit orderly comprises an address domain, a PDU protocol data unit and an error check part; the PDU protocol data unit orderly comprises a functional code and a data domain, and the encoding format design is performed on the PDU protocol data unit; the encoding format design is a DSM-CC section format using the MPEG-2 standard to introduce into the data domain. The enhanced type MODBUS communication protocol provides the base for formulating the data communication process standard for the development of the internet of Things industry, the large data volume transmission problem is solved, the standard and the flexibility are coexistent, the error relevance ratio in the data transmission is improved, and the bit error rate is greatly reduced.
Description
Technical field
The present invention relates to communications protocol technical field, particularly relate to a kind of enhancement mode based on MPEG-2
MODBUS communication protocol.
Background technology
MODBUS agreement is the real bus protocol for industry spot in first, the whole world, in state since coming out
Inside and outside industrial control field is widely used.Along with computer information technology, network technology continuous
Development, MODBUS agreement has become as a kind of current industry standard language and agreement.By this agreement, different
The controller that manufacturer produces is each other, controller is via between network (such as Ethernet) and miscellaneous equipment
Can be in communication with each other, be linked to be industrial network and carry out Centralized Monitoring.
For preferably popularizing and promoting MODBUS based on the Distributed Application on Ethernet, current Schneider
The proprietary rights of MODBUS agreement has been transferred to IDA (Interface for Distributed by company
Automation, distributed automatization interface) tissue, and set up MODBUS-IDA tissue, for MODBUS
Development from now on is laid a good foundation.In China, MODBUS has become as standard GB/T/T19582-2008.
At present, in the communication process of distributed Internet of Things at home, MODBUS agreement is mainly used in data
In downlink communication transmission, it may be assumed that things-internet gateway (control node) and various sensor, controller are (controlled
Node) between communication.Seldom there is manufacturer that MODBUS agreement is applied to things-internet gateway and information
In data uplink communication process between platform service end.In other industry, the such as number of power industry application
It is DLT 634.5101-2009 according to uplink communication agreement, BACNET agreement of intelligent building industry etc., all
Having the general world or domestic standard, these standards are widely used at those industry fields, promote
Technology and the industry development of industry are entered.But, in Internet of Things+sector application field, data uplink communication
Agreement or a blank, do not have any GB, terrestrial reference or group's mark to connect to unify each manufacturer data
Mouthful, make them respective system become one by one " information island " with equipment, this is to Internet of Things+sector application
For derivative various industries, it it is a great development bottleneck.Meanwhile, in the data communication of other industry
Row agreement has the sector application feature of oneself, it is adaptable to the field at place, it is impossible to apply with copying mechanically and applying indiscriminately
To other industry.Meanwhile, those agreements, according to the development of industry, are also to upgrade constantly,
Industry characteristic is more and more obvious, and this is for other industry, is exactly maximum applied defect in fact.
Summary of the invention
The present invention provides a kind of enhancement mode MODBUS communication protocol based on MPEG-2, for Internet of Things industry
Development, it is provided that formulate the basis of data communication process standard, the problem solving big data quantity transmission, standard
Coexist with motility, improve the mistake recall rate of data transmission, be substantially reduced the bit error rate.
For solving above-mentioned technical problem, the technical scheme is that a kind of enhancement mode based on MPEG-2
MODBUS communication protocol, transmission frame format includes ADU application data, and ADU application data is successively
Including address field, PDU protocol Data Unit and error checking and correction part, PDU protocol Data Unit includes successively
Function code and data field, carry out coded format design to PDU protocol Data Unit, and described coded format designs
For using the DSM-CC paragraph format of Moving Picture Experts Group-2, it is incorporated into described data field.
As preferred technical scheme, described data field include successively data identification field, data length field,
Module id field, version number field, segment number field, maximum segment number field and data field.
As preferred technical scheme, described data identification field is 1Byte, and data type includes remote measurement number
According to, remote signalling data, distant empty data and remote regulating data.
As the improvement to technique scheme, described data length field includes that the section of 1Bit is semantic successively
The valid data length position of indicating bit, the privately owned indicating bit of 1Bit, the reserved place of 2Bit and 12Bit；Institute
The data stating the storage of valid data length position are module id field, version number field, segment number field, maximum
Valid data length L of segment number field and data field.
As the improvement to technique scheme, the total length of described ADU application data is valid data
Length L+7Byte, L≤1024Byte.
As the further improvement to technique scheme, described module id field is 2Byte.
As the further improvement to technique scheme, described version number field is 1Byte, includes successively
Current/follow-up indicating bit of the reserved place of 2Bit, the version number position of 5Bit and 1Bit.
As the further improvement to technique scheme, described segment number field is 1Byte.
As the further improvement to technique scheme, described maximum segment number field is 1Byte.
As improving the most further technique scheme, described error checking and correction part uses CRC32 poor
Wrong verification mode.
Owing to have employed technique scheme, the present invention follows strictly standard GB/T/T19582-2008
MODBUS agreement, and use DSM-CC paragraph format, make more specifically to encode to the application layer of MODBUS
Design.The present invention is the development of Internet of Things industry, it is provided that formulate the basis of data communication process standard, solves
The problem of big data quantity of having determined transmission, standard and motility coexist, and improve the mistake recall rate of data transmission,
It is substantially reduced the bit error rate.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not limit the model of the present invention
Enclose.Wherein:
Fig. 1 is the stack layer time graph of a relation of the embodiment of the present invention；
Fig. 2 is the transmission frame format figure of the embodiment of the present invention；
Fig. 3 is the data form of the PDU protocol Data Unit of the embodiment of the present invention；
Fig. 4 is the structure chart of the data length field of the embodiment of the present invention；
Fig. 5 is the structure chart of the version number field of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is expanded on further.In the following detailed description, the most logical
The mode crossing explanation describes some one exemplary embodiment of the present invention.Undoubtedly, the common skill of this area
Art personnel will be consequently realised that, in the case of without departing from the spirit and scope of the present invention, can use various difference
Mode described embodiment is modified.Therefore, accompanying drawing and description are the most illustrative,
Rather than be used for limiting scope of the claims.
As shown in Figures 2 and 3, a kind of enhancement mode MODBUS communication protocol based on MPEG-2, transmission frame
Form includes that ADU application data, ADU application data include address field, PDU agreement number successively
According to unit and error checking and correction part, PDU protocol Data Unit includes function code and data field successively, to PDU
Protocol Data Unit carries out coded format design, and coded format is designed as using the DSM-CC of Moving Picture Experts Group-2
Paragraph format, is incorporated into data field.
Function code field English is Function Code Field, and its general utility functions is not changed, and user is certainly
Defined function, according to the different application of Internet of Things+industry, can define corresponding interactive function code.
The range of application of the present embodiment is mainly the data uplink communication process of Internet of Things+sector application, such as:
The things-internet gateway of agricultural Internet of Things (Internet of Things+agricultural) automated system (SCADA) takes to information platform
The uplink communication of business end.
The present invention follows strictly standard GB/T/T19582-2008MODBUS agreement, and creatively uses
DSM-CC paragraph format, has made more specifically code Design to the application layer of MODBUS.
The present embodiment is the application layer Message Protocol on osi model the 7th layer, and enhancement mode MODBUS is led to
Letter agreement is shown in Table 1 with the relativity of osi model protocol hierarchy.
As it is shown in figure 1, figure shows the hierarchical relationship of the present embodiment enhancement mode MODBUS communication protocol stack.
As it is shown on figure 3, data field, in other communication protocol, commonly referred to as valid data, load, clean
Lotus (Payload) etc., in order to more efficiently organize this data field, the data lattice of the present embodiment design
Formula is as follows, and data field includes data identification field, data length field, module id field, version successively
Number field, segment number field, maximum segment number field and data field.
Data identification field English is data id, 1Byte, is used for representing the data type mark of transmission, number
Include according to type:
0x3B, the long-range measurement data of identification transmission, i.e. telemetry；
0x3C, identification transmission remote signal data, i.e. remote signalling data, such as: pre-alarm information, switch shape
State etc.；
0x3D, identification transmission remote command data, i.e. remote-control data；
0x3E, identification transmission remote adjustment data, i.e. remote regulating data.
As shown in Figure 3 and Figure 4, data length field English is data length, includes 1Bit successively
The valid data of section semanteme indicating bit, the privately owned indicating bit of 1Bit, the reserved place of 2Bit and 12Bit long
Degree position；Valid data length position storage data be module id field, version number field, segment number field,
Maximum segment number field and valid data length L of data field.
Duan Yuyi indicating bit English is section syntax indicator, the knot of tissue of mark valid data
Structure meets DSM-CC segment structure grammer, 1Bit.1: meet；0: do not meet, it is traditionally arranged to be " 1 ".
Privately owned indicating bit English is private indicator, with section semanteme indicating bit with the use of, 1Bit,
It is traditionally arranged to be " 0 ".
Reserved place English is reserved, reserved use, 2Bit later, is traditionally arranged to be " 11 ".
Valid data length position, the length of record valid data, 12Bit.Valid data length L concrete
Computational methods are: save from the first character of module id field and start to count, until data field terminates, also
It it is exactly the last character section end at data field.
The total length of ADU application data is valid data length L+7Byte, L≤1024Byte.Because
This agreement is applicable to network transmission, and the length limitation of the valid data of IP bag is 1460 Byte, therefore,
In this agreement, the length of valid data is less than 1024 bytes, i.e. 1K Byte.
Module id field English is Module id, 2Byte, when data collection station or things-internet gateway
When the data volume of collection of a certain moment is the biggest, or the data accumulation amount produced due to communication failure is the biggest
Time, what we just can utilize data disassembles packet technology to solve this difficult problem.Module id field is marked exactly
Knowing some bigger data module, we are in transmitting procedure, and this module is split, dismounted into
Some sections are transmitted, and carry out unpacking, organizing the inverse process of bag at receiving terminal.
As it is shown in figure 5, version number field English is version number, 1Byte, include 2Bit successively
Current/follow-up indicating bit of reserved place, the version number position of 5Bit and 1Bit.
Version number field is used for the version change identifying in data transmission procedure.Reserved place English is
Reserved, reserved use, 2Bit later, it is traditionally arranged to be " 11 "；Version number's position English is version
Number, 5Bit, after transferring content changes, it is desirable to this version number adds one；Currently/follow-up finger
Showing that position English is current next indicator, 1Bit, mark current version is the most effective, and 1: have
Effect；0: invalid.
Segment number field English is section number, 1Byte, is used for identifying these data of current transmission
Section position in the middle of whole data module.
Maximum segment number field English is last section number, 1Byte, is used for identifying whole data
The segment number of last data segment of module.
Data field English is data, according to different industry characteristics, all kinds of numbers to telemechanical SCADA system
Effectively organize according to information.
Error checking and correction part use CRC32 error checking and correction mode, the verification used relative to other agreement and,
The error checks such as CRC8 and CRC16, CRC32 is a kind of efficient error control method, is widely used in surveying
Control and data communication field, have coding simultaneously and coding/decoding method is simple, and error detecing capability is strong, and probability of miscarriage of justice is very
Low and there is the advantages such as error correcting capability.
The present embodiment follows strictly standard GB/T/T19582-2008MODBUS agreement, and creatively adopts
Use DSM-CC paragraph format, the application layer of MODBUS has been made more specifically code Design.The present embodiment has
Have the advantage that
First, for the development of Internet of Things industry, it is provided that formulate the basis of data communication process standard, standard
Change is the key foundation of an industry development, sees that an industry is the most promising, if keep vigorous
Vitality, a key factor, it is simply that the standardization level of this industry.The present embodiment is devoted to solve thing
The data-interface reunification of Networking industries communication process, has had unified data communication interface, it is possible to for
The development of whole industry brings great motive force, reduces research and development, the cost produced, for manufacturer simultaneously
The biggest interests are all brought with user.
Secondly, the problem solving big data quantity transmission, other host-host protocol or stipulations, pass in data
During sending, a communication process, the data volume of transmission is fewer, when a reason is agreement formulation
Physical basis condition, another is exactly the defect that agreement itself has, and does not tear unpacking method open.The present invention
Providing and perfect tear unpacking method open, the data module size that can disposably transmit is 64MByte.System is led to
News occur abnormal, and after long period communication recovers, system still can recruit rapidly the data surveying accumulation.
It addition, standard and motility coexist, the present embodiment follows strictly the phase of domestic and international MODBUS agreement
Pass standard, by means of the application foundation of MODBUS agreement industrial control field at home, the present embodiment is permissible
Communication process in Internet of Things industry is applied rapidly.Manufacturer can be according to oneself place industry
Feature, simple, effectively tissue data encode.
Finally, improve the mistake recall rate of data transmission, be substantially reduced the bit error rate.
Table 1: enhancement mode MODBUS communication protocol and the relativity of osi model protocol hierarchy
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The industry
Skilled person will appreciate that, the present invention is not restricted to the described embodiments, in above-described embodiment and description
The principle that the present invention is simply described described, without departing from the spirit and scope of the present invention, the present invention
Also having various changes and modifications, these changes and improvements both fall within scope of the claimed invention.This
The claimed scope of invention is defined by appending claims and equivalent thereof.
Claims (10)
1. an enhancement mode MODBUS communication protocol based on MPEG-2, transmission frame format includes that ADU applies
Data cell, ADU application data includes address field, PDU protocol Data Unit and error checking and correction portion successively
Point, PDU protocol Data Unit includes function code and data field successively, it is characterised in that: to PDU protocol data
Unit carries out coded format design, and described coded format is designed as using the DSM-CC section lattice of Moving Picture Experts Group-2
Formula, is incorporated into described data field.
2. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 1, its feature exists
In: described data field includes data identification field, data length field, module id field, version successively
Number field, segment number field, maximum segment number field and data field.
3. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described data identification field is 1Byte, and data type includes telemetry, remote signalling data, distant empty data
With remote regulating data.
4. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described data length field include successively the section semanteme indicating bit of 1Bit, the privately owned indicating bit of 1Bit,
The reserved place of 2Bit and the valid data length position of 12Bit；The data of described valid data length position storage are
Module id field, version number field, segment number field, maximum segment number field and the valid data of data field
Length L.
5. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 3, its feature exists
In: the total length of described ADU application data is valid data length L+7Byte, L≤1024Byte.
6. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described module id field is 2Byte.
7. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described version number field is 1Byte, includes the reserved place of 2Bit, the version number position of 5Bit and 1Bit successively
Current/follow-up indicating bit.
8. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described segment number field is 1Byte.
9. enhancement mode MODBUS communication protocol based on MPEG-2 as claimed in claim 2, its feature exists
In: described maximum segment number field is 1Byte.
10. the enhancement mode MODBUS communication protocols based on MPEG-2 as described in any one of claim 1 to 9
View, it is characterised in that: described error checking and correction part uses CRC32 error checking and correction mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629589.0A CN106027686B (en) | 2016-08-02 | 2016-08-02 | Enhanced MODBUS communication method based on MPEG-2 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629589.0A CN106027686B (en) | 2016-08-02 | 2016-08-02 | Enhanced MODBUS communication method based on MPEG-2 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106027686A true CN106027686A (en) | 2016-10-12 |
| CN106027686B CN106027686B (en) | 2020-02-18 |
Family
ID=57133792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629589.0A Active CN106027686B (en) | 2016-08-02 | 2016-08-02 | Enhanced MODBUS communication method based on MPEG-2 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106027686B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896245A (en) * | 2017-11-07 | 2018-04-10 | 山东网智物联网科技有限公司 | The realization device of Internet of Things communication means, device and Internet of Things Network Communication |
| CN108494650A (en) * | 2018-02-07 | 2018-09-04 | 丽水博远科技有限公司 | A kind of binary signaling protocol data link layer transmission frame format |
| WO2022027480A1 (en) * | 2020-08-06 | 2022-02-10 | 华为数字能源技术有限公司 | Data collection method and apparatus, modbus system, and storage medium |
| CN114567649A (en) * | 2021-12-24 | 2022-05-31 | 浙江中控技术股份有限公司 | Communication protocol suitable for transmission of Internet of things |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792095A (en) * | 2001-07-23 | 2006-06-21 | 皇家菲利浦电子有限公司 | Direct rtp delivery method and system over mpeg network |
| EP1763246A1 (en) * | 2005-09-08 | 2007-03-14 | Osmosys S.A. | Method of access to applications transmitted within data streams of different television channels and device giving access to broadcasted applications |
| CN102143458A (en) * | 2011-03-30 | 2011-08-03 | 上海师范大学 | Multi-protocol converter based on GSM (Global System for Mobile Communications) short message transmission in wireless communication network |
-
2016
- 2016-08-02 CN CN201610629589.0A patent/CN106027686B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792095A (en) * | 2001-07-23 | 2006-06-21 | 皇家菲利浦电子有限公司 | Direct rtp delivery method and system over mpeg network |
| EP1763246A1 (en) * | 2005-09-08 | 2007-03-14 | Osmosys S.A. | Method of access to applications transmitted within data streams of different television channels and device giving access to broadcasted applications |
| CN102143458A (en) * | 2011-03-30 | 2011-08-03 | 上海师范大学 | Multi-protocol converter based on GSM (Global System for Mobile Communications) short message transmission in wireless communication network |
Non-Patent Citations (2)
| Title |
|---|
| 傅骞等: "基于物联网架构的增强型Modbus协议栈研究", 《信息技术与信息化》 * |
| 电子发烧友: "一种MODBUS协议实现方法", 《百度文库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896245A (en) * | 2017-11-07 | 2018-04-10 | 山东网智物联网科技有限公司 | The realization device of Internet of Things communication means, device and Internet of Things Network Communication |
| CN108494650A (en) * | 2018-02-07 | 2018-09-04 | 丽水博远科技有限公司 | A kind of binary signaling protocol data link layer transmission frame format |
| WO2022027480A1 (en) * | 2020-08-06 | 2022-02-10 | 华为数字能源技术有限公司 | Data collection method and apparatus, modbus system, and storage medium |
| CN114567649A (en) * | 2021-12-24 | 2022-05-31 | 浙江中控技术股份有限公司 | Communication protocol suitable for transmission of Internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106027686B (en) | 2020-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106027686A (en) | Enhanced type MODBUS communication protocol based on MPEG-2 | |
| CN102480462B (en) | Universal protocol adapting method and device | |
| TWI530138B (en) | Grouping small burst transmissions for downlink machine-to-machine communications | |
| CN102017580B (en) | Method and apparatus for processing messages | |
| CN112822276B (en) | Substation control layer communication method and system, electronic equipment and storage medium | |
| CN110300120B (en) | Hierarchical synchronization method and system for reverse data under physical isolation condition | |
| CN102891796B (en) | Mining intelligent transmission gateway | |
| CN101552785B (en) | CAN bus communication method based on message mechanism used for massive data transmission | |
| CN101465791B (en) | Document transmission method based on unidirection link | |
| CN104539712A (en) | Intelligent household appliance data transmission method | |
| CN102724170A (en) | IPv6lowpan-based internet of things gateway supporting UGCCNet | |
| CN103647706A (en) | Self-adaptation protocol communication gateway and communication platform | |
| CN110247967A (en) | Intelligent networking gateway and its data intelligence processing method | |
| CN106033641A (en) | A multifunctional intelligent control system achieved by a power line carrier and a controlling method thereof | |
| CN102255800B (en) | Method for converting data format between IP (Internet Protocol) data packages on CAN (Control Area Network) bus and CAN messages | |
| CN101626367B (en) | 1-wire bus device ID-based communication protocol | |
| CN108429729B (en) | Data communication isolation system and isolation method in industrial big data acquisition environment | |
| US20230283668A1 (en) | Sensor data interpreter/converter methods and apparatus for use in low power wide area networks (lpwans) | |
| CN107425998B (en) | Communication link guarantee method based on industrial WIFI | |
| CN103618656A (en) | Master-slave nodes of networked logging downhole instrument and data processing method thereof | |
| CN111131213B (en) | Method for realizing R-GOOSE electric power message | |
| CN108040041A (en) | A kind of image difference transport protocol design system and method based on business-driven | |
| CN104702585B (en) | Carry out the method and gateway device of protocol conversion | |
| CN104506461A (en) | Industrial communication network gateway equipment | |
| CN111862571B (en) | Method for reading a flow meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |