CN108872664A - Intelligent electric meter - Google Patents
Intelligent electric meter Download PDFInfo
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- CN108872664A CN108872664A CN201810865280.0A CN201810865280A CN108872664A CN 108872664 A CN108872664 A CN 108872664A CN 201810865280 A CN201810865280 A CN 201810865280A CN 108872664 A CN108872664 A CN 108872664A
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- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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- General Physics & Mathematics (AREA)
- Selective Calling Equipment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The application discloses a smart electric meter, which comprises a meter for metering electric quantity; a communication module for transmitting data; the main controller is connected with the communication module and used for receiving the data sent by the main station through the communication module and judging whether the data are metering sensitive data or not, if so, the data are forwarded to the safety module, and otherwise, corresponding operation is executed according to the data; and the safety module is respectively connected with the main controller and the meter and is used for executing corresponding safety operation on the metering value of the meter according to metering-class sensitive data. This application will measure the sensitive data of class and directly handle by security module, security module and counter lug connection, can directly carry out safe operation to the metering value of counter, that is to say, do not do by the master controller to the processing of metering value, but do by very safe security module, have avoided receiving the risk of maliciously falsifying when the master controller is handled, have improved the security of ammeter, have protected user's interests better.
Description
Technical field
This application involves Automated electronic product technical fields, more particularly to a kind of intelligent electric meter.
Background technique
Intelligent electric meter is the terminal of smart grid, it other than having the function of measuring of traditional ammeter basic electricity consumption,
Also there are two-way a variety of rates metering, user terminal control and a variety of intelligentized functions such as anti-electricity-theft.
The structure of common intelligent electric meter is as shown in Figure 1, including main controller, communication module, meter, security module, showing
Show device and controllable switch.Main controller executes corresponding operation under the control of main website, such as reads the variable of meter, control
Controllable switch closure come realize power-off etc., during executing corresponding operation security module for main controller provide encrypt or
The service such as decryption.But the intelligent electric meter of this structure still remains biggish risk, when hackers are attacked and control master control
After device, security module can not find that the data that main controller is sent for pseudo- data, cannot play the role of protecting data safety, example
Such as, after main controller obtains variable, hacker is by the data tampering and is sent to security module and carries out the safe handling such as encrypting, finally
Main website is sent to by communication module by main controller, it can be seen that during entire data processing, security module is not
Play the role of protecting the authenticity of data, main website can not also find that data are distorted in main controller processing；For another example, intelligence
It after energy ammeter receives cut-offing instruction, is usually parsed, and instruction legitimate verification is carried out by security module, is instructed by main controller
Cut-offing instruction can just be executed by being verified rear main controller, and after main controller is maliciously controlled, main controller can skip verifying ring
The case where section directly sends power-off signal to controllable switch, and malice is caused to power off.As it can be seen that the safety of current intelligent electric meter compared with
Low, the interests of user are subject to encroach on.
Therefore, how a kind of scheme can solve above-mentioned technical problem is provided, is that those skilled in the art needs at present
It solves the problems, such as.
Summary of the invention
The purpose of the application is to provide a kind of intelligent electric meter, avoids the wind maliciously distorted in main controller processing
Danger, improves the safety of ammeter, preferably protects the interests of user.
In order to solve the above technical problems, this application provides a kind of intelligent electric meters, including：
For measuring the meter of electricity；
It is used for transmission the communication module of data；
The main controller being connect with the communication module, for receiving the data that main website is sent by the communication module, and
Judge whether the data are metering class sensitive data, if so, being forwarded to security module, otherwise execute phase according to the data
The operation answered；
It connect, be used for according to the metering class sensitive data to the metering with the main controller and the meter respectively
The variable of device executes the security module of corresponding safety operation.
Preferably, which further includes：
The controllable switch being connect with the security module；
Then the main controller is also used to judge whether the data are verifying class sensitive data, if so, being forwarded to safety
Otherwise module executes corresponding operation according to the data；
Then the security module is also used to verify the legitimacy of the verifying class sensitive data, and sensitive in the verifying class
After data are by verifying, the controllable switch closure is controlled to give the controllable switch pair according to the verifying class sensitive data
The customer power supply or the control controllable switch answered disconnect so that user corresponding with controllable switch power-off.
Preferably, the metering class sensitive data includes metering electricity class data；
Then the security module is specifically used for obtaining the metering of the meter according to the metering electricity class data
Value carries out safe handling to the variable, the variable after safe handling is sent to the main controller, so as to described
Main controller reports to the main website.
Preferably, the metering class sensitive data further includes charging class data；
Then the security module is specifically used for obtaining the variable of the meter according to the charging class data,
Charging is completed according to default electricity price and the variable.
Preferably, which further includes：
It is connect with the main controller, for showing the display of the variable；
Then the main controller is also used to show after the variable reduction after safe handling by the display
Show.
Preferably, the process for carrying out safe handling to the variable is specially：
The variable is encrypted and/or is calculated message authentication code and/or signature.
Preferably, the process of the legitimacy of the verifying verifying class sensitive data is specially：
By decryption and/or signature authentication and/or verifying message authentication code, the legitimacy of the verifying class data is verified.
Preferably, the controllable switch is relay.
Preferably, the display is liquid crystal display.
This application provides a kind of intelligent electric meters, including the meter for measuring electricity；It is used for transmission the communication of data
Module；Whether the main controller connecting with communication module for receiving the data that main website is sent by communication module, and judges data
To measure class sensitive data, if so, being forwarded to security module, corresponding operation otherwise is executed according to data；Respectively with master control
Device connects with meter, the safety for executing corresponding safety operation to the variable of meter according to metering class sensitive data
Module.
The application is directly handled class sensitive data is measured by security module, and security module is directly connected to meter,
Can variable directly to meter carry out safety operation, that is to say, that the processing to variable be not done by main controller, and
It is to be done by very safe security module, avoids the risk maliciously distorted in main controller processing, improve ammeter
Safety, preferably protect the interests of user.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of intelligent electric meter in the prior art；
Fig. 2 is a kind of structural schematic diagram of intelligent electric meter provided herein；
Fig. 3 is the structural schematic diagram of another intelligent electric meter provided herein.
Specific embodiment
The core of the application is to provide a kind of intelligent electric meter, avoids the wind maliciously distorted in main controller processing
Danger, improves the safety of ammeter, preferably protects the interests of user.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Referring to FIG. 2, Fig. 2 is a kind of structural schematic diagram of intelligent electric meter provided herein, including：
For measuring the meter 1 of electricity；
It is used for transmission the communication module 2 of data；
The main controller 3 connecting with communication module 2 for receiving the data that main website is sent by communication module 2, and judges number
According to whether being metering class sensitive data, if so, being forwarded to security module 4, corresponding operation otherwise is executed according to data；
It is connect respectively with main controller 3 and meter 1, for being held according to metering class sensitive data to the variable of meter 1
The security module 4 of the corresponding safety operation of row.
Specifically, in order to solve the problems, such as to propose in background technique, the application improves the structure of intelligent electric meter, by
Belong to the important and key message of user in the variable of meter 1, cannot exist and the risks such as be tampered, and main controller 3 is ratio
Be easier to the attack by hacker, if reading variable by main controller 3,3 end variable of main controller under attack just
In the presence of the risk distorted, security module 4 will not find that data are tampered with main website by " bypass ", security module 4；Therefore, originally
Meter 1 is connect by application with security module 4, and variable is obtained by security module 4, is provided with attack protection in security module 4
Software, will not maliciously be controlled, also there is no the risks that are tampered of variable obtained, therefore, by security module 4
Processing variable can guarantee the reliability and integrality of variable, and ammeter could be safer.In addition, the data sent when main website
When not being metering class sensitive data, that is, when will not relate to the important and key message of user, directly made accordingly by main controller 3
Response, can share out the work and help one another in this way with security module 4, reduce respective data processing pressure.
It should be noted that variable here can be the electricity consumption of the corresponding user of intelligent electric meter, metering here
Class sensitive data is sent by main website, is a kind of instruction for variable, such as report variable and charging.Here communication mould
Block 2 can be wireless communication module, such as Wi-Fi (Wireless-Fidelity, Wireless Fidelity) network, or wired
Communication module, the application is it is not limited here.
In addition, SPI (Serial Peripheral can be passed through when security module 4 is connect with the equal hardware of meter 1
Interface, Serial Peripheral Interface (SPI)) and UART (Universal Asynchronous Receiver/Transmitter, it is logical
With asynchronous receiving-transmitting transmitter) etc. interfaces, can also be by other interfaces, the application is it is not limited here.The application not only can be used
In intelligent electric meter, it can also be used to which other need the industrial control equipment using safety chip.
This application provides a kind of intelligent electric meters, including the meter for measuring electricity；It is used for transmission the communication of data
Module；Whether the main controller connecting with communication module for receiving the data that main website is sent by communication module, and judges data
To measure class sensitive data, if so, being forwarded to security module, corresponding operation otherwise is executed according to data；Respectively with master control
Device connects with meter, the safety for executing corresponding safety operation to the variable of meter according to metering class sensitive data
Module.
The application is directly handled class sensitive data is measured by security module, and security module is directly connected to meter,
Can variable directly to meter carry out safety operation, that is to say, that the processing to variable be not done by main controller, and
It is to be done by very safe security module, avoids the risk maliciously distorted in main controller processing, improve ammeter
Safety, preferably protect the interests of user.
On the basis of the above embodiments：
Embodiment as one preferred, the intelligent electric meter further include：
The controllable switch 5 being connect with security module 4；
Then main controller 3 is also used to judge whether data are verifying class sensitive data, if so, it is forwarded to security module 4, it is no
Then corresponding operation is executed according to data；
Then security module 4 is also used to the legitimacy of authentication class sensitive data, and in verifying class sensitive data by testing
It, can to give the corresponding customer power supply of controllable switch 5 or control according to verifying class sensitive data control controllable switch 5 closure after card
Switch 5 is controlled to disconnect so that user corresponding with controllable switch 5 powers off.
Specifically, in order to further increase the safety of ammeter, the verifying class sensitive data that the application sends main website is still
It is handled, the instruction that verifying class sensitive data here can act for control controllable switch 5, such as is closed by security module 4
It closes controllable switch 5 or disconnects controllable switch 5, for this kind of data, security module 4 needs to verify its true and false, is determining the number
After for true (legal), security module 4 sends control signal to controllable switch 5 connected to it.Referring to FIG. 3, specific next
It says, when verifying class sensitive data is closure controllable switch 5, security module 4 sends closure to controllable switch 5 connected to it
Signal is controlled, after controllable switch 5 is closed, the ammeter of user is connect with power supply grid, and power supply grid can be to customer power supply, when testing
Demonstrate,proving class sensitive data is when disconnecting controllable switch 5, and security module 4 sends the control disconnected to controllable switch 5 connected to it and believes
Number, after controllable switch 5 disconnects, the ammeter and power supply grid of user is disconnected, and powers off user.
In addition, other than above-mentioned metering class sensitive data and verifying class sensitive data, it can also be as needed to main website
Other data for being related to important information sent are performed corresponding processing by security module 4, and the application does not do special limit herein
It is fixed.
Embodiment as one preferred, metering class sensitive data include metering electricity class data；
Then security module 4 be specifically used for according to metering electricity class data, obtain meter 1 variable, to variable into
Variable after safe handling is sent to main controller 3 by row safe handling, so that main controller 3 reports to main website.
Specifically, metering electricity class data here are to report variable, i.e. master request ammeter in first embodiment
Main controller 3 return user electricity consumption (variable), the electricity consumption of user is measured by meter 1.Therefore, security module
4 after the metering electricity class data for receiving the forwarding of main controller 3, obtain variable and encrypt etc. to variable and improve data
Then the safe handling of safety is reported to main website via main controller 3.
Embodiment as one preferred, metering class sensitive data further includes charging class data；
Then security module 4 is specifically used for obtaining the variable of meter 1 according to charging class data, according to default electricity price and
Variable completes charging.
Specifically, in order to further increase the safety of ammeter, metering class sensitive data further includes charging class data, i.e., main
Station requires ammeter to complete the charging to the electricity consumption of user, and the number such as electricity price can specifically, in security module 4 be stored in advance
After obtaining variable according to, security module 4, the electricity charge of user are calculated according to variable and electricity price, in addition, if in security module 4
Further comprising user is the amount of money for paying the electricity charge, and security module 4 can also deduct the corresponding amount of money according to the electricity charge of calculating, thus
Complete billing function.
In addition, metering class sensitive data may be other, this Shen other than metering electricity class data and charging class data
Please it is not limited here.
Embodiment as one preferred, the intelligent electric meter further include：
It is connect with main controller 3, for showing the display of variable；
Then main controller is also used to show after the variable reduction after safe handling by display.
Specifically, in order to improve the intelligence of ammeter, when user wants to know electricity consumption, user can be made by main website
Ammeter display variable being obtained, such as user sends electricity display request to main website, main website controls ammeter progress electricity and shows, because
This, the intelligent electric meter of the application further includes display, and display can be attached with main controller 3, and main controller 3 receives safety
Variable after 4 safe handling of module restores the variable after safe handling, such as whether verifying MAC value is consistent, after consistent
The MAC value for removing the calculating of security module 4 restores the variable after safe handling, to facilitate display to show.
It should be noted that display here can be liquid crystal display, or LED display or other displays
Device, the application is it is not limited here.
Embodiment as one preferred, the process for carrying out safe handling to variable are specially：
Message authentication code and/or signature are encrypted and/or calculated to variable.
Specifically, to variable carry out safe handling when, can using encryption, calculate message authentication code (MAC value) and
The modes such as signature are signed as in the way of key progress authentication, the mode for carrying out safe handling to variable can be
But it is not limited to above-mentioned several ways.
The process of embodiment as one preferred, the legitimacy of authentication class sensitive data is specially：
Pass through decryption and/or signature authentication and/or verifying message authentication code, the legitimacy of authentication class data.
Specifically, it when 4 authentication class sensitive data of security module, can be decrypted by the password of setting, if can
With decryption, then illustrates that verifying class sensitive data is legal, can also be tested by the verifying of signature authentication and message authentication code to determine
The legitimacy of class sensitive data is demonstrate,proved, certainly, verification mode can also be other, and the application is it is not limited here.
Embodiment as one preferred, controllable switch 5 are relay.
Specifically, it is contemplated that the cost of ammeter, controllable switch 5 can be the common lower relay of price, certainly
It can be other controllable switches 5, as long as can be realized the application, the application is it is not limited here.
Embodiment as one preferred, display are liquid crystal display.
Specifically, display can be liquid crystal display, or LED display or other displays, the application exist
This is without limitation.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence " including one " limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of intelligent electric meter, which is characterized in that including：
For measuring the meter of electricity；
It is used for transmission the communication module of data；
The main controller connecting with the communication module for receiving the data that main website is sent by the communication module, and judges
Whether the data are metering class sensitive data, if so, being forwarded to security module, are otherwise executed according to the data corresponding
Operation；
Connect respectively with the main controller and the meter, for according to the metering class sensitive data to the meter
Variable executes the security module of corresponding safety operation.
2. intelligent electric meter according to claim 1, which is characterized in that the intelligent electric meter further includes：
The controllable switch being connect with the security module；
Then the main controller is also used to judge whether the data are verifying class sensitive data, if so, it is forwarded to security module,
Otherwise corresponding operation is executed according to the data；
Then the security module is also used to verify the legitimacy of the verifying class sensitive data, and in the verifying class sensitive data
After verifying, it is corresponding to give the controllable switch that the controllable switch closure is controlled according to the verifying class sensitive data
Customer power supply or the control controllable switch disconnect so that user corresponding with controllable switch power-off.
3. intelligent electric meter according to claim 1, which is characterized in that the metering class sensitive data includes metering electricity class
Data；
Then the security module is specifically used for obtaining the variable of the meter according to the metering electricity class data,
Safe handling is carried out to the variable, the variable after safe handling is sent to the main controller, so as to the master
Control device reports to the main website.
4. intelligent electric meter according to claim 1, which is characterized in that the metering class sensitive data further includes charging class number
According to；
Then the security module is specifically used for obtaining the variable of the meter according to the charging class data, according to
Default electricity price and the variable complete charging.
5. intelligent electric meter according to claim 3, which is characterized in that the intelligent electric meter further includes：
It is connect with the main controller, for showing the display of the variable；
Then the main controller is also used to show after the variable reduction after safe handling by the display.
6. intelligent electric meter according to claim 3, which is characterized in that the mistake for carrying out safe handling to the variable
Journey is specially：
The variable is encrypted and/or is calculated message authentication code and/or signature.
7. intelligent electric meter according to claim 2, which is characterized in that the verifying is described to verify the legal of class sensitive data
The process of property is specially：
By decryption and/or signature authentication and/or verifying message authentication code, the legitimacy of the verifying class data is verified.
8. intelligent electric meter according to claim 2, which is characterized in that the controllable switch is relay.
9. intelligent electric meter according to claim 5, which is characterized in that the display is liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865280.0A CN108872664B (en) | 2018-08-01 | 2018-08-01 | Intelligent ammeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865280.0A CN108872664B (en) | 2018-08-01 | 2018-08-01 | Intelligent ammeter |
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| CN108872664A true CN108872664A (en) | 2018-11-23 |
| CN108872664B CN108872664B (en) | 2024-09-06 |
Family
ID=64307198
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| CN201810865280.0A Active CN108872664B (en) | 2018-08-01 | 2018-08-01 | Intelligent ammeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535858A (en) * | 2019-08-29 | 2019-12-03 | 广东电网有限责任公司 | A kind of intelligent electric meter Verification System and method |
| CN111583622A (en) * | 2020-04-28 | 2020-08-25 | 南方电网数字电网研究院有限公司 | Metering information distribution processing system and method of double-core intelligent ammeter management unit |
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| CN111583622B (en) * | 2020-04-28 | 2021-01-22 | 南方电网数字电网研究院有限公司 | Metering information distribution processing system and method of double-core intelligent ammeter management unit |
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| Publication number | Publication date |
|---|---|
| CN108872664B (en) | 2024-09-06 |
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