CN114115097B - Intelligent Internet of things gateway - Google Patents
Intelligent Internet of things gateway Download PDFInfo
- Publication number
- CN114115097B CN114115097B CN202111283357.1A CN202111283357A CN114115097B CN 114115097 B CN114115097 B CN 114115097B CN 202111283357 A CN202111283357 A CN 202111283357A CN 114115097 B CN114115097 B CN 114115097B
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- Prior art keywords
- gateway
- plc
- function
- control cabinet
- communication interface
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 17
- 230000003993 interaction Effects 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- 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
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15028—Controller and device have several formats and protocols, select common one
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Computer And Data Communications (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention relates to an intelligent Internet of things gateway, which effectively solves the problem that only one server can access a PLC at the same time in the prior art; the technical scheme is that a gateway is connected with a plurality of servers, the gateway is also connected with a control cabinet, the gateway comprises a routing function and a gateway function, the routing function supports a plurality of protocols, the gateway function supports a modbus protocol, a mqtt protocol and a socket protocol, and the gateway function supports video transmission; the invention has simple structure, can effectively improve the efficiency of the server for accessing the PLC, can effectively ensure the stable control of the control cabinet, and has strong practicability.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to an intelligent Internet of things gateway.
Background
The control cabinet for secondary water supply is used for managing and controlling the cooperation operation between the water pumps by sending corresponding instructions through the PLC equipment, so that the aim of reasonably carrying out secondary water supply is fulfilled. In order to make the device become software-definable hardware, to realize remote monitoring of real-time data and optimal control, it is now necessary to develop an intelligent gateway to realize data transmission between the device and the platform.
At present, the internet of things is usually used as a transmission medium, a server actively accesses a PLC in a control cabinet through an intelligent gateway to acquire data, and the PLC exists in the form of a slave station in the control cabinet. As a slave station, only one server can access at the same time, and if two or more servers access at the same time, real-time data transmission cannot be realized.
Therefore, the present invention provides an intelligent internet of things gateway to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the intelligent Internet of things gateway, which effectively solves the problem that only one server can access the PLC at the same time in the prior art.
The gateway is connected with a plurality of servers, the gateway is also connected with a control cabinet, the gateway comprises a routing function and a gateway function, the routing function supports a plurality of protocols, the gateway function supports a modbus protocol, a mqtt protocol and a socket protocol, and the gateway function supports video transmission. Preferably, the system also comprises a PLC function, and the communication mode of the PLC and the gateway is half-duplex communication: 485 communication interface, the PLC function possess data storage and propelling movement function.
Preferably, the PLC function further has a backup function and a backup 485 communication interface, when the PLC fails, the fault code is uploaded, and at this time, after the gateway receives the data from the PLC, the gateway closes the 485 communication interface and opens the backup 485 communication interface.
The invention improves the problem that only one server can access the PLC at the same time in the prior art, and through double insurance of local PLC control and intelligent Internet of things gateway interconnection, when PLC equipment is damaged, the intelligent Internet of things gateway can temporarily take over the PLC to control the control cabinet, and on one hand, alarm information is sent to a formulated server, and on the other hand, the control cabinet can continuously run to achieve the effect of continuously supplying water;
The novel intelligent gateway is not used as a medium any more to enable the server to access the PLC, but directly access the PLC and push data to each server, so that a plurality of servers can access the control cabinet at the same time and obtain real-time data of the control cabinet;
The novel intelligent gateway equipment can push source data to a plurality of servers at the same time, and each server appointed to be pushed by the gateway can directly acquire the source data in the control cabinet, so that the acquisition and analysis of big data and the construction of a cloud platform are more convenient;
In conclusion, the invention has simple structure, can effectively improve the efficiency of the server for accessing the PLC, can effectively ensure the stable control of the control cabinet, and has strong practicability.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The foregoing and other features, aspects and advantages of the present invention will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying fig. 1. The following embodiments are described in detail with reference to the drawings.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
In the first embodiment, the invention is an intelligent internet of things gateway, the gateway is connected with a plurality of servers, and the gateway is also connected with a control cabinet and is mainly divided into an intelligent internet of things gateway A without a PLC function and an intelligent internet of things gateway B with the PLC function.
The intelligent internet of things gateway A has the following functions:
1. Routing function
(1) Supporting various internet surfing modes;
(2) Supporting simultaneous transmission of an intranet and an extranet;
(3) And information security in the transmission process is ensured.
2. Gateway function
(1) Supporting a modbus protocol;
(2) Data transmission of various protocols such as mqtt protocol or socket protocol is supported, and data can be read and written;
(3) Video transmission is supported.
The intelligent internet of things gateway B has the following functions:
1. Routing function
(1) Supporting various internet surfing modes;
(2) Supporting simultaneous transmission of an intranet and an extranet;
(3) And information security in the transmission process is ensured.
2. Gateway function
(1) Supporting a modbus protocol;
(2) Data transmission supporting multiple protocols (mqtt protocol or socket protocol) can perform read-write operation on the data;
(3) Video transmission is supported.
3. PLC function
(1) When the PLC cannot operate, the PLC can be replaced to operate, and meanwhile, a PLC fault signal is transmitted;
(2) Has the functions of data storage and pushing.
The intelligent internet of things gateway B also has an instruction storage function, and the communication mode between the control cabinet PLC and the gateway is half-duplex communication: 485 communication port, therefore, if two hosts issue inquiry or control instructions at the same time, the phenomenon of packet collision will be generated, and data loss will be caused, in order to avoid the risk, the invention adds instruction storage function in the gateway, when two hosts (such as host A and host B) issue instructions at the same time, the instruction of one host (host B) will be temporarily stored in the gateway, and after the instruction of the other host (host A) returns data, the instruction of the previous host (host B) is sent again.
The intelligent internet of things gateway B also has a PLC backup function, and the PLC backup function is mainly aimed at a pressure supply water pump of a field modbus protocol and a control cabinet thereof, and the field control cabinet PLC and the water pump are interacted in real time; after the control cabinet PLC breaks down, the fault code can be uploaded, at the moment, after the gateway receives data from the control cabinet PLC, the 485 communication port is closed to prevent the fault PLC from uploading dirty data to affect data interaction, a standby 485 communication interface is opened, and the gateway and the pressure water supply pump directly conduct data interaction.
The invention improves the problem that only one server can access the PLC at the same time in the prior art, and through double insurance of local PLC control and intelligent Internet of things gateway interconnection, when PLC equipment is damaged, the intelligent Internet of things gateway can temporarily take over the PLC to control the control cabinet, and on one hand, alarm information is sent to a formulated server, and on the other hand, the control cabinet can continuously run to achieve the effect of continuously supplying water;
The novel intelligent gateway is not used as a medium any more to enable the server to access the PLC, but directly access the PLC and push data to each server, so that a plurality of servers can access the control cabinet at the same time and obtain real-time data of the control cabinet;
The novel intelligent gateway equipment can push source data to a plurality of servers at the same time, and each server appointed to be pushed by the gateway can directly acquire the source data in the control cabinet, so that the acquisition and analysis of big data and the construction of a cloud platform are more convenient;
In conclusion, the invention has simple structure, can effectively improve the efficiency of the server for accessing the PLC, can effectively ensure the stable control of the control cabinet, and has strong practicability.
Claims (1)
1. The intelligent internet of things gateway is characterized in that the gateway is connected with a plurality of servers, the gateway is also connected with a control cabinet, the gateway comprises a routing function and a gateway function, the routing function supports a plurality of protocols, the gateway function supports a modbus protocol, a mqtt protocol and a socket protocol, and the gateway function supports video transmission;
Still include the PLC function, the communication mode of PLC and gateway is half duplex communication: 485 communication interface, the said PLC function has data storage and pushing function; when two hosts are linked, the two hosts issue inquiry or control instructions simultaneously, and when the two hosts issue instructions simultaneously, the command of one host is temporarily stored in the gateway, and after the command of the other host returns data, the command of the previous host is sent again; directly carrying out data interaction with the pressure supply water pump through the gateway;
The PLC function also has a backup function and a standby 485 communication interface, when the PLC fails, a fault code is uploaded, and at the moment, after the gateway receives data from the PLC, the gateway closes the 485 communication interface and opens the standby 485 communication interface; and directly carrying out data interaction with the pressure supply water pump through the gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283357.1A CN114115097B (en) | 2021-11-01 | 2021-11-01 | Intelligent Internet of things gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283357.1A CN114115097B (en) | 2021-11-01 | 2021-11-01 | Intelligent Internet of things gateway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114115097A CN114115097A (en) | 2022-03-01 |
| CN114115097B true CN114115097B (en) | 2024-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111283357.1A Active CN114115097B (en) | 2021-11-01 | 2021-11-01 | Intelligent Internet of things gateway |
Country Status (1)
| Country | Link |
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| CN (1) | CN114115097B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957597A (en) * | 2011-08-26 | 2013-03-06 | 富士通株式会社 | Gateway device and method for controlling same |
| CN208209990U (en) * | 2018-06-19 | 2018-12-07 | 重庆中控欧玛仪表研究院有限公司 | A kind of things-internet gateway of multimode signal transmission |
| CN110290225A (en) * | 2019-07-30 | 2019-09-27 | 中电科华北网络信息安全有限公司 | A kind of industrialized agriculture things-internet gateway and working method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571639A (en) * | 2010-12-20 | 2012-07-11 | 中兴通讯股份有限公司 | Intelligent home gateway equipment |
| JP6225244B2 (en) * | 2013-03-12 | 2017-11-01 | サウジ アラビアン オイル カンパニー | Oilfield treatment control system |
| US9307344B2 (en) * | 2013-04-17 | 2016-04-05 | Systech Corporation | Gateway device for machine-to-machine communication with dual cellular interfaces |
| US10057382B2 (en) * | 2015-09-24 | 2018-08-21 | Amrita Vishwa Vidyapeetham | Intelligent “IoT gateway” |
| CN105897574B (en) * | 2016-05-27 | 2021-11-05 | 中国东方电气集团有限公司 | Modbus RTU/TCP gateway device supporting double-network double-master redundancy |
| CN108011924A (en) * | 2017-10-30 | 2018-05-08 | 新奥泛能网络科技股份有限公司 | Energy source station data information acquisition system |
| CN208316754U (en) * | 2018-06-28 | 2019-01-01 | 北京科技大学 | A kind of Centralized Monitoring intelligent gateway |
| CN113132417A (en) * | 2021-06-16 | 2021-07-16 | 国能信控互联技术有限公司 | Multi-protocol conversion encryption industrial intelligent gateway and operation method thereof |
-
2021
- 2021-11-01 CN CN202111283357.1A patent/CN114115097B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957597A (en) * | 2011-08-26 | 2013-03-06 | 富士通株式会社 | Gateway device and method for controlling same |
| CN208209990U (en) * | 2018-06-19 | 2018-12-07 | 重庆中控欧玛仪表研究院有限公司 | A kind of things-internet gateway of multimode signal transmission |
| CN110290225A (en) * | 2019-07-30 | 2019-09-27 | 中电科华北网络信息安全有限公司 | A kind of industrialized agriculture things-internet gateway and working method |
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| Publication number | Publication date |
|---|---|
| CN114115097A (en) | 2022-03-01 |
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