CN115426344A - Instrument remote communication control method - Google Patents
Instrument remote communication control method Download PDFInfo
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- CN115426344A CN115426344A CN202211064683.8A CN202211064683A CN115426344A CN 115426344 A CN115426344 A CN 115426344A CN 202211064683 A CN202211064683 A CN 202211064683A CN 115426344 A CN115426344 A CN 115426344A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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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
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention provides a remote communication control method for an instrument. The technical scheme abandons the conventional one-way and single-factor control strategy, adopts communication nodes with relay function and a control path of modeling blocking of an upper mechanism, and adds an encryption algorithm and an identification module. Specifically, the method firstly generates the SMTP message with json data and data types; on the basis, a Socket server and a Socket client are respectively established at the communication nodes, and upper computer information is preset; meanwhile, storing the private key in a trusted execution environment, storing the public key in an SSL certificate, and communicating and encrypting based on the exchanged digital certificate; and finally, giving a communication identification code to the data before transmitting the data, and controlling the on-off of a communication link by the upper computer based on the communication identification code. The invention not only improves the safety of communication control, but also has higher efficiency, better guaranteed accuracy and good running performance.
Description
Technical Field
The invention relates to the technical field of instruments and meters, in particular to a remote communication control method for an instrument.
Background
In recent years, with the rapid development of network communication technology, many intelligent instruments and industrial control systems use standard communication interfaces and existing networks (such as public switched telephone networks, power networks, and the like) to realize remote data communication and control management, and especially at present, household appliances are increasingly intelligent, and there is a wide development and application space for remote control by using the standard communication interfaces.
In the prior art, the communication networks commonly used for instruments include a public switched telephone network, a power line carrier communication network, a mobile wireless network, a wired width network and the like, and the communication networks have characteristics in the aspect of a communication control implementation method. The public telephone network is one of the most extensive networks, although the public telephone network is an existing telephone communication facility, does not need to additionally lay a private cable, and is low in cost, but is completely based on analog transmission, narrow in bandwidth, low in data transmission rate, high in bit error rate, and is still a practical and economic choice for a remote data transmission and control management system with low data traffic. The power grid is also the most extensive network laid, the data transmission by using the power grid is not only low in operation cost but also convenient and practical, and a sending end modulates data onto a high-frequency carrier wave, and the data is coupled to a power line through a coupling circuit after being amplified by power. However, there are many disadvantages to using power carrier communication. Firstly, the line interference is very large, instantaneous pulse interference can be generated on the line by the on-off of various electrical equipment, and the peak value of the interference pulses can reach up to kilovolt; the opening and closing of various high-power switching devices can generate standing wave interference with wide frequency spectrum distribution. Secondly, different kinds of lines and loads on different lines have a great influence on the transmission of high frequency signals on the power line. Therefore, it is very important to select a reasonable data modulation mode. The mobile wireless network adds a new channel for the remote control of the intelligent instrument, saves the wiring cost, reduces the construction, makes the remote control system have a wider development space, and generally forms a network into a multilevel structure for reducing the mobile communication cost. The wired broadband network is also very wide, and particularly, the application of the optical fiber technology promotes the faster development of the wired broadband. Adopt wired broadband network can reduce mobile communication expense, the structure of adoption: radio frequency-ethernet/wifi-server-client; wifi-server-client; the network architecture can be changed in combination with the features of the meter and the customer's requirements. On the whole, the conventional communication control method needs to be improved in terms of communication efficiency, accuracy, timeliness and the like, and under the condition, how to develop a more accurate and efficient instrument remote communication control method becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a remote communication control method for an instrument aiming at the technical defects in the prior art so as to solve the technical problems of the conventional communication control method, such as communication efficiency, accuracy, timeliness and the like.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a meter remote communication control method comprises the following steps:
1) The intelligent meter generates an SMTP message, and the SMTP message simultaneously has json data and data type information subordinate to the json data;
2) Respectively establishing a Socket server and a Socket client at communication nodes, simultaneously establishing a communication node management form, presetting upper computer information at each communication node, and responding to the upper computer information by the Socket client to trigger a control instruction;
3) The meter stores the private key in a trusted execution environment and stores the public key in an SSL certificate, when the meter is communicated with an upper computer, the SSL certificate is exchanged, an encryption private key of the communication is created after the verification is passed, and the encryption private key is used for encryption;
4) Establishing core communication information according to data output by the instrument, and sending the core communication information to an upper computer, wherein the core communication information has a randomly generated communication identification code; the upper computer controls the on-off of a communication link based on the communication identification code; and when at least one control instruction is arranged in the upper computer, transmitting the control instruction from the data temporary storage area to a data receiving area of the instrument.
Preferably, the smart meter comprises a wireless module, and the wireless module and the communication node exchange data by using a TCP/IP protocol.
Preferably, the SMTP message has a response code, response description information, and version information.
Preferably, the json data provides stringiness and parse methods; and the striping converts the js object into a character string conforming to the json standard.
Preferably, the Socket server is connected with a plurality of Socket clients simultaneously.
Preferably, the upper computer is provided with control software of the intelligent instrument, and the control software responds to user operation to generate a control instruction.
Preferably, in step 3), the user accesses the Web server using the URL of HTTPS, and requests to establish an SSL connection with the Web server.
Preferably, the SSL certificate contains certificate version information, a serial number, a signature algorithm, an encryption algorithm, a validity period, and user information.
Preferably, a lower computer is arranged between the instrument and the upper computer, and the lower computer is a PLC (programmable logic controller) or a single chip microcomputer.
Preferably, the data temporary storage area is DX or MDR.
The invention provides a remote communication control method for an instrument. The technical scheme abandons the conventional unidirectional and single-factor control strategy, adopts communication nodes with relay function and an upper mechanism to build a blocking control path, and adds an encryption algorithm and an identification module. Specifically, the method firstly generates the SMTP message with json data and data types; on the basis, a Socket server and a Socket client are respectively established at the communication nodes, and upper computer information is preset; meanwhile, storing the private key in a trusted execution environment, storing the public key in an SSL certificate, and communicating and encrypting based on the exchanged digital certificate; and finally, giving a communication identification code to the data before transmitting the data, and controlling the on-off of a communication link by the upper computer based on the communication identification code. The invention not only improves the safety of communication control, but also has higher efficiency, better guaranteed accuracy and good running performance.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to represent quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A meter remote communication control method comprises the following steps:
1) The intelligent meter generates an SMTP message, and the SMTP message simultaneously has json data and data type information subordinate to the json data;
2) Respectively establishing a Socket server and a Socket client at communication nodes, simultaneously establishing a communication node management form, presetting upper computer information at each communication node, and responding to the upper computer information by the Socket client to trigger a control instruction;
3) The meter stores the private key in a trusted execution environment and stores the public key in an SSL certificate, when the meter is communicated with an upper computer, the SSL certificate is exchanged, an encryption private key of the communication is created after the verification is passed, and the encryption private key is used for encryption;
4) Establishing core communication information according to data output by the instrument, and sending the core communication information to an upper computer, wherein the core communication information has a randomly generated communication identification code; the upper computer controls the on-off of a communication link based on the communication identification code; when the upper computer has at least one control instruction, the control instruction is transmitted to a data receiving area of the instrument from the data temporary storage area.
Example 2
A meter remote communication control method comprises the following steps:
1) The intelligent meter generates an SMTP message, and the SMTP message simultaneously has json data and data type information subordinate to the json data;
2) Respectively establishing a Socket server and a Socket client at communication nodes, establishing a communication node management form, presetting upper computer information at each communication node, and responding to the upper computer information by the Socket client to trigger a control instruction;
3) The meter stores the private key in a trusted execution environment and stores the public key in an SSL certificate, when the meter is communicated with an upper computer, the SSL certificate is exchanged, an encryption private key of the communication is created after the verification is passed, and the encryption private key is used for encryption;
4) Establishing core communication information according to data output by the instrument, and sending the core communication information to an upper computer, wherein the core communication information has a randomly generated communication identification code; the upper computer controls the on-off of a communication link based on the communication identification code; when the upper computer has at least one control instruction, the control instruction is transmitted to a data receiving area of the instrument from the data temporary storage area.
The intelligent instrument comprises a wireless module, and the wireless module and the communication node exchange data by utilizing a TCP/IP protocol. The SMTP message has a response code, response description information, and version information. The json data provides stringify and parse methods; and the striping converts the js object into a character string conforming to the json standard. The Socket server is connected with a plurality of Socket clients simultaneously. The upper computer is provided with control software of the intelligent instrument, and the control software responds to user operation to generate a control instruction. In step 3), the user accesses the Web server by using the URL of the HTTPS and requires to establish SSL connection with the Web server. The SSL certificate contains certificate version information, a serial number, a signature algorithm, an encryption algorithm, a validity period and user information. And a lower computer is arranged between the instrument and the upper computer, and the lower computer is a PLC (programmable logic controller) or a singlechip. The data temporary storage area is DX or MDR.
The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A remote communication control method for a meter is characterized by comprising the following steps:
1) The intelligent meter generates an SMTP message which simultaneously has json data and data type information subordinate to the json data;
2) Respectively establishing a Socket server and a Socket client at communication nodes, simultaneously establishing a communication node management form, presetting upper computer information at each communication node, and responding to the upper computer information by the Socket client to trigger a control instruction;
3) The instrument stores the private key in a trusted execution environment and stores the public key in an SSL (secure socket layer) certificate, when the instrument is communicated with an upper computer, the SSL certificate is exchanged at first, an encryption private key of the communication is created after the verification is passed, and the encryption private key is used for encryption;
4) Creating core communication information according to data output by the instrument, and sending the core communication information to an upper computer, wherein the core communication information has a randomly generated communication identification code; the upper computer controls the on-off of a communication link based on the communication identification code; and when at least one control instruction is arranged in the upper computer, transmitting the control instruction from the data temporary storage area to a data receiving area of the instrument.
2. The meter telecommunication control method of claim 1, wherein said smart meter comprises a wireless module, said wireless module and said communication node exchange data using TCP/IP protocol.
3. The meter telecommunication control method of claim 1, wherein the SMTP message has a response code, response description information and version information.
4. A meter telecommunication control method according to claim 1, characterized in that said json data provides stringify and part methods; and converting the js object into a character string meeting the json standard by the stringify.
5. The instrument remote communication control method according to claim 1, wherein the Socket server is connected to a plurality of Socket clients simultaneously.
6. The instrument remote communication control method according to claim 1, wherein the upper computer is provided with control software of the intelligent instrument, and the control software generates a control instruction in response to a user operation.
7. The meter telecommunication control method according to claim 1, wherein in step 3), the user accesses the Web server using URL of HTTPS to request SSL connection with the Web server.
8. The meter telecommunication control method of claim 1, wherein the SSL certificate contains certificate version information, serial number, signature algorithm, encryption algorithm, validity period, and user information.
9. The instrument remote communication control method according to claim 1, wherein a lower computer is provided between the instrument and the upper computer, and the lower computer is a PLC controller or a single chip microcomputer.
10. The method as claimed in claim 1, wherein the data buffer is DX or MDR.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211064683.8A CN115426344A (en) | 2022-08-29 | 2022-08-29 | Instrument remote communication control method |
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| CN202211064683.8A CN115426344A (en) | 2022-08-29 | 2022-08-29 | Instrument remote communication control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117424947A (en) * | 2023-12-19 | 2024-01-19 | 无锡梵克罗电气设计有限公司 | Riding equipment system |
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| US20140148952A1 (en) * | 2011-05-11 | 2014-05-29 | Mytech Ingenieria Aplicada, S.L. | Central node and terminal instrumentation node for self-configuring and secure building automation system |
| CN103905384A (en) * | 2012-12-26 | 2014-07-02 | 北京握奇数据系统有限公司 | Embedded inter-terminal session handshake realization method based on security digital certificate |
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| EP3345335A1 (en) * | 2016-11-16 | 2018-07-11 | Huawei Technologies Co., Ltd. | Homomorphic based method and system for securely aggregating data |
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-
2022
- 2022-08-29 CN CN202211064683.8A patent/CN115426344A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477540A (en) * | 2002-07-12 | 2004-02-25 | Lg电子株式会社 | Long Distance meter fetch system and method based on mobile communication |
| US20140148952A1 (en) * | 2011-05-11 | 2014-05-29 | Mytech Ingenieria Aplicada, S.L. | Central node and terminal instrumentation node for self-configuring and secure building automation system |
| CN103905384A (en) * | 2012-12-26 | 2014-07-02 | 北京握奇数据系统有限公司 | Embedded inter-terminal session handshake realization method based on security digital certificate |
| CN106329721A (en) * | 2016-06-01 | 2017-01-11 | 杭州华泰电气技术有限公司 | Integrated intelligent ammeter and electric power measurement and control protection system |
| EP3345335A1 (en) * | 2016-11-16 | 2018-07-11 | Huawei Technologies Co., Ltd. | Homomorphic based method and system for securely aggregating data |
| CN206657474U (en) * | 2017-04-15 | 2017-11-21 | 湖南安全技术职业学院 | A kind of long-distance meter-reading system based on Internet of Things |
| CN107864040A (en) * | 2017-11-17 | 2018-03-30 | 国网重庆市电力公司南岸供电分公司 | A kind of intelligent grid big data information management system based on safe cloud computing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117424947A (en) * | 2023-12-19 | 2024-01-19 | 无锡梵克罗电气设计有限公司 | Riding equipment system |
| CN117424947B (en) * | 2023-12-19 | 2024-03-12 | 无锡梵克罗电气设计有限公司 | Riding equipment system |
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