CN114554310B - Electric power metering sniffing system and method - Google Patents
Electric power metering sniffing system and method Download PDFInfo
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- CN114554310B CN114554310B CN202210006333.XA CN202210006333A CN114554310B CN 114554310 B CN114554310 B CN 114554310B CN 202210006333 A CN202210006333 A CN 202210006333A CN 114554310 B CN114554310 B CN 114554310B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000006854 communication Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 43
- 230000004044 response Effects 0.000 claims description 35
- 238000012545 processing Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 108091006146 Channels Proteins 0.000 description 19
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
- H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/047—Key management, e.g. using generic bootstrapping architecture [GBA] without using a trusted network node as an anchor
- H04W12/0471—Key exchange
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/88—Providing power supply at the sub-station
- H04Q2209/883—Providing power supply at the sub-station where the sensing device enters an active or inactive mode
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to an electric power metering sniffing system and method. The system of the invention relies on the radio frequency technology, adopts wireless communication to replace field bus communication, further cancels the metering and debugging field wiring process, and eliminates potential safety hazards such as misconnection, miscontact and the like possibly caused by manual wiring. The system communication process adopts multiple encryption authentication, and data theft is prevented to the greatest extent.
Description
Technical Field
The invention relates to the field of electric power metering, in particular to the field of electric power equipment metering and wireless communication, in particular to an electric power metering sniffing system and an electric power metering sniffing method.
Background
The safety of the operation of the metering site is guaranteed, and the electric power metering device is a great weight of electric power metering work. However, the metering devices are often installed in close proximity to the power supply, which results in complex and variable metering operations in the field. In the actual operation process, on one hand, operators need to climb a pole, climb a tower and the like to work with higher safety requirements; on the other hand, when debugging equipment, need carry out on-the-spot open-box and uncap wiring, have the mistake and touch, misconnection risk has great potential safety hazard.
With the development of wireless communication technology, there are some simple solutions to the above problem, by accessing a bluetooth module in a metering device by means of bluetooth technology. When in field debugging, the terminal opens Bluetooth, searches for a Bluetooth module in the metering equipment, and can acquire simple debugging data after pairing connection. The scheme solves part of problems, but due to the limitation of Bluetooth, the data communication safety of the Bluetooth equipment cannot be effectively ensured, in addition, the Bluetooth equipment does not have exclusivity, bluetooth information is directly exposed to the field, and electric power metering data are very easy to steal.
Disclosure of Invention
Aiming at the existing problems, the invention provides a power metering sniffing system and a method, which solve the problem that power metering data are very easy to steal.
The technical scheme of the invention is as follows:
an electric power metering sniffing system comprises a preposed probe module, a sniffing module and a processing module; the front probe module is arranged in the metering equipment to acquire metering equipment information;
the pre-probe module is in a low-power consumption monitoring mode initially, waits for a sniffing packet to appear in an encryption channel, receives an instruction after the processing module detects the sniffing packet, enters a data transmission mode, performs authentication, passes the authentication, receives the instruction, transmits a temporary key to the sniffing module, enters the sniffing mode and waits for a response packet of the sniffing module, and reenters the sniffing mode if the response packet is overtime; after receiving the response packet, the front probe module enters a data transmission mode, encrypts and transmits data to the sniffing module, and the transmission is automatically switched back to a low-power consumption monitoring mode;
the sniffing module is initially in a probe detection mode, sends data to the encryption channel, the processing module monitors whether response data exists in the encryption channel, if the response data exists, the data is analyzed and authenticated by a key, if the authentication is passed, the sniffing module sends a response packet to the front probe module, and if the authentication is unsuccessful, the packet is discarded; after the authentication is successful, the sniffing module actively waits for the encrypted data, if the encrypted data is received overtime, the sniffing module is switched into a detection mode again, if the encrypted data is received, the encrypted data is decrypted, and related data is pushed into the processing module.
Further, one end of the front probe module is powered through a USB port of the metering device, and the other end of the front probe module is connected with the metering device through a bus.
Further, after the processing module receives the metering data, data protocol matching is automatically performed, and the data result is displayed to the display module in a visual mode.
The invention also relates to a power metering sniffing method, which comprises the following steps:
waiting for the data information of the encryption channel to activate, sending a sniffing packet to the encryption channel to detect, receiving the sniffing packet, sending a temporary key to authenticate, sending a response packet after authentication is successful, establishing communication channels of both sides, transmitting the encryption data, decrypting the encryption data, and forwarding to a display module to display.
Further, after metering data is received, data protocol matching is automatically performed, and data results are displayed to a display module in a visual mode.
Further, the method comprises the following steps:
the front probe module is in a low-power consumption monitoring mode initially, waits for a sniffing packet to appear in the encryption channel, enters a data transmission mode after detecting the sniffing packet, passes authentication, transmits a temporary key to the sniffing module, enters the sniffing mode simultaneously, waits for a response packet of the sniffing module, and reenters the sniffing mode if the response packet is overtime; after receiving the response packet, the front probe module enters a data transmission mode, encrypts and transmits data to the sniffing module, and the transmission is automatically switched back to a low-power consumption monitoring mode;
the sniffing module is initially in a probe detection mode, sends data to the encryption channel, the processing module monitors whether response data exists in the encryption channel, if the response data exists, the data is analyzed and authenticated by a key, if the authentication is passed, the sniffing module sends a response packet to the front probe module, and if the authentication is unsuccessful, the packet is discarded; after the authentication is successful, the sniffing module actively waits for the encrypted data, if the encrypted data is received overtime, the sniffing module is switched into a detection mode again, if the encrypted data is received, the encrypted data is decrypted, and related data is pushed into the processing module.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the system of the invention relies on the radio frequency technology, adopts wireless communication to replace field bus communication, further cancels the process of metering and debugging field wiring, and eliminates potential safety hazards such as misconnection, miscontact and the like possibly caused by manual wiring.
Secondly, the system communication process adopts multiple encryption authentication, firstly, the preposed probe and sniffing equipment adopt encryption channel interaction, illegal equipment cannot detect and search, secondly, the preposed probe and sniffing equipment adopt a temporary secret key exchange technology, the temporary secret key is only effective for the communication, data theft is prevented to the greatest extent, and all communication data are encrypted through the third secret key.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a flow chart of the operation of the front end probe module of the present invention;
fig. 3 is a workflow diagram of a sniffing module of the present invention.
Detailed Description
The following description of the embodiments will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. Based on the embodiments, all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort are within the scope of the present application.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given a general meaning as understood by one of ordinary skill in the art. The terms "first," "second," and the like, as used in this embodiment, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. "upper", "lower", "left", "right", "transverse", and "vertical", etc. are used only with respect to the orientation of the components in the drawings, these directional terms are relative terms, which are used for descriptive and clarity with respect thereto and which may vary accordingly with respect to the orientation in which the components are disposed in the drawings.
As shown in fig. 1, the power metering sniffer system of the present embodiment includes a front-end probe, a sniffer, and a processing module; the preposed probe is arranged in the metering equipment to acquire the information of the metering equipment; one end of the front probe module is powered through a USB port of the metering equipment, and the other end of the front probe module is connected with the metering equipment through a bus.
The preposed probe can be a U-shaped module which is built in the metering equipment, one end of the module is powered through a USB port of the metering equipment, the other end of the module is physically connected with the metering equipment through a bus, and the preposed probe acquires information of the metering equipment through a data bus.
As shown in fig. 2, the pre-probe is initially in a low-power consumption monitoring mode, waits for the encrypted channel to generate a sniffing packet, receives an instruction by the pre-probe after the processing module detects the sniffing packet, enters a data transmission mode, performs authentication, passes the authentication, receives the instruction by the pre-probe, transmits a temporary key to the sniffer, enters the sniffing mode, waits for a response packet of the sniffing module, and reenters the sniffing mode if the response packet is overtime; after receiving the response packet, the front probe enters a data transmission mode, encrypts and transmits data to the sniffer, and the transmission is automatically switched back to a low-power consumption monitoring mode.
As shown in fig. 3, the sniffer is initially in a probe detection mode, sends data to the encrypted channel, the processing module monitors whether the encrypted channel has response data, if the encrypted channel has response data, the data is analyzed and key authenticated, if the encrypted channel has response data, the sniffer sends response packets to the front probe, and if the encrypted channel has response data, the sniffer discards the packets; after the authentication is successful, the sniffer actively waits for the encrypted data, if the encrypted data is received overtime, the sniffer is switched into the detection mode again, if the encrypted data is received, the encrypted data is decrypted, and related data is pushed into the processing module.
And after the processing module receives the metering data, automatically performing data protocol matching, and displaying the data result to the display module in a visual mode.
The processing module may be application software running on the sniffing system; the software has autonomous judging logic, and when the sniffing equipment is started, the software is automatically operated, and when metering data is received, data protocol matching is automatically carried out, and a data result is displayed in a visual form.
It should be noted that, it should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. The sniffer is a mobile terminal integrated with a sniffer circuit and sniffer antenna; the sniffer can run terminal software while being able to automatically detect probes present in the surrounding environment.
Based on the above system, the electric power metering sniffing system of the present embodiment proceeds as follows:
the front probe is in a low-power consumption working mode, waits for the activation of the data information of the encryption channel, actively transmits a sniffing packet to the encryption channel for detection after the sniffing equipment is started, switches to a transmission mode after the front probe receives the sniffing packet, transmits a temporary key for authentication, authenticates the temporary key, transmits a response packet to the probe after the authentication is successful, establishes communication channels of both parties, starts transmitting encrypted data to the sniffing module, decrypts the encrypted data, and transmits the decrypted encrypted data to the display module for display processing.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part.
The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a readable storage medium or transmitted from one readable storage medium to another.
It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application.
It should be understood that, in the embodiments of the present application, the sequence number of each process described above does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. An electric power metering sniffing system, characterized by: the device comprises a preposed probe module, a sniffing module and a processing module; the front probe module is arranged in the metering equipment to acquire metering equipment information;
the pre-probe module is in a low-power consumption monitoring mode initially, waits for a sniffing packet to appear in an encryption channel, receives an instruction after the processing module detects the sniffing packet, enters a data transmission mode, performs authentication, passes the authentication, receives the instruction, transmits a temporary key to the sniffing module, enters the sniffing mode and waits for a response packet of the sniffing module, and reenters the sniffing mode if the response packet is overtime; after receiving the response packet, the front probe module enters a data transmission mode, encrypts and transmits data to the sniffing module, and the transmission is automatically switched back to a low-power consumption monitoring mode;
the sniffing module is initially in a probe detection mode, sends data to the encryption channel, the processing module monitors whether response data exists in the encryption channel, if the response data exists, the data is analyzed and authenticated by a key, if the authentication is passed, the sniffing module sends a response packet to the front probe module, and if the authentication is unsuccessful, the packet is discarded; after the authentication is successful, the sniffing module actively waits for the encrypted data, if the encrypted data is received overtime, the sniffing module is switched into a detection mode again, if the encrypted data is received, the encrypted data is decrypted, and related data is pushed into the processing module;
and after the processing module receives the metering data, automatically performing data protocol matching, and displaying the data result to the display module in a visual mode.
2. The system according to claim 1, wherein: one end of the front probe module is powered through a USB port of the metering equipment, and the other end of the front probe module is connected with the metering equipment through a bus.
3. An electric power metering sniffing method is characterized in that: the method comprises the following steps:
waiting for the data information of the encryption channel to be activated, sending a sniffing packet to the encryption channel to detect, receiving the sniffing packet, sending a temporary key to authenticate, sending a response packet after authentication is successful, establishing communication channels of both sides, transmitting the encryption data, decrypting the encryption data, and forwarding to a display module to display;
the front probe module is initially in a low-power consumption monitoring mode, waits for a sniffing packet to appear in the encryption channel, enters a data transmission mode after detecting the sniffing packet, passes authentication, transmits a temporary key to the sniffing module, enters the sniffing mode, waits for a response packet of the sniffing module, and reenters the sniffing mode if the response packet is overtime; after receiving the response packet, the front probe module enters a data transmission mode, encrypts and transmits data to the sniffing module, and the transmission is automatically switched back to a low-power consumption monitoring mode;
the sniffing module is initially in a probe detection mode, sends data to the encryption channel, the processing module monitors whether response data exists in the encryption channel, if the response data exists, the data is analyzed and authenticated by a key, if the authentication is passed, the sniffing module sends a response packet to the front probe module, and if the authentication is unsuccessful, the packet is discarded; after the authentication is successful, the sniffing module actively waits for the encrypted data, if the encrypted data is received overtime, the sniffing module is switched into a detection mode again, if the encrypted data is received, the encrypted data is decrypted, and related data is pushed into the processing module;
and after the processing module receives the metering data, automatically performing data protocol matching, and displaying the data result to the display module in a visual mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210006333.XA CN114554310B (en) | 2022-01-04 | 2022-01-04 | Electric power metering sniffing system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210006333.XA CN114554310B (en) | 2022-01-04 | 2022-01-04 | Electric power metering sniffing system and method |
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| CN114554310A CN114554310A (en) | 2022-05-27 |
| CN114554310B true CN114554310B (en) | 2024-03-22 |
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