CN109951496A - A kind of data-privacy guard method of intelligent electric meter - Google Patents
A kind of data-privacy guard method of intelligent electric meter Download PDFInfo
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- CN109951496A CN109951496A CN201910264007.7A CN201910264007A CN109951496A CN 109951496 A CN109951496 A CN 109951496A CN 201910264007 A CN201910264007 A CN 201910264007A CN 109951496 A CN109951496 A CN 109951496A
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Abstract
The invention discloses a kind of data-privacy guard methods of intelligent electric meter; this method comprises: multiple intelligent electric meters are divided into multiple meter groups according to preset strategy; and different group keys is distributed respectively for each meter group, wherein each intelligent electric meter has unique and fixed original user ID；Each intelligent electric meter in current meter group generates the pseudo- User ID sequence of multiple and different combinations according to the group key and time, and different pseudo- User ID sequences is selected in different times, wherein, the pseudo- User ID quantity in pseudo- User ID sequence is no less than the intelligent electric meter quantity in current meter group；Each intelligent electric meter in current meter group selects different pseudo- User ID to carry out the original user ID in alternate data packet from the pseudo- User ID sequence currently selected, and sends data packet.The present invention can protect the electricity consumption privacy of user.
Description
Technical field
The present invention relates to Data Protection Technologies fields, more particularly to a kind of data-privacy guard method of intelligent electric meter.
Background technique
Smart grid is the enhancing technology to traditional power grid.Traditional electric power networks are used for electric power is defeated from central generator
Thousands of user is given, and smart grid has then used two-way electric power and information flow, with creation automation and distribution
Advanced energy transmission network, have can self-healing, high reliability, high power quality, network attack, all kinds of distributions of adaptation can be resisted
The features such as formula power generation and storage equipment, by utilizing modern information technologies, smart grid can transmit electricity in a more effective manner
Power, and a variety of different events are responded.Smart grid can event Anywhere to occur in responsive electricity grid, such as send out
Electricity, transmission of electricity, distribution and power consumption, and can take appropriate measures.
In smart grid, the equipment that situation report is carried out in each customer rs site is known as intelligent electric meter.It is a kind of
The equipment of computerization, for substituting the ammeter of current family's external connection.Intelligent electric meter can track daily electricity usage
Situation disconnects client connection by software, or is sounding an alarm when something goes wrong.Intelligent electric meter can also directly with intelligence
Equipment is connected to control them, for example, closing air-conditioning in the peak of power consumption period.
However, the behavior and habit of user may be exposed in frequent information exchange between user and electricity provider
It is used.The main advantage of smart grid is to obtain the ability of richer data from client's ammeter and other electronic equipments, but from
From the perspective of secret protection, this is also its fatal weakness.The electricity usage information being stored in ammeter can be interested
People or group re-use to disclose individual privacy information, such as personal habit, behavior, activity, preference, even look up to.
Importantly, small-scale monitoring experiment shows accurately estimate even if using relatively simple hardware and algorithm
Count personal information.
In traditional power grid, electricity provider monthly obtains the power information of a user.And in smart grid, electric power
Supplier can collect the power information of user with every 15 minutes or more frequently.If not safe data collection plan is used
The privacy information at family may will be leaked.In smart grid, electricity provider can be by continually collecting the electricity consumption of user
Information is not intended to these information to be obtained by electricity provider to obtain the privacy information of user for the angle of user.Separately
On the one hand, if the power information of user is intercepted by hacker, hacker can carry out malicious attack to user.
In today's society, government organs and individual client increasingly pay close attention to privacy concern.Therefore, in developing intellectual resource power grid
When, the secret protection scheme for studying user is very important.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of data-privacy guard methods of intelligent electric meter, can protect
The electricity consumption privacy of user.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of data of intelligent electric meter are provided
Method for secret protection, comprising: multiple intelligent electric meters are divided into multiple meter groups according to preset strategy, and are distinguished for each meter group
Distribute different group keys, wherein each intelligent electric meter has unique and fixed original user ID；It is every in current meter group
One intelligent electric meter generates the pseudo- User ID sequence of multiple and different combinations according to the group key and time, and selects in different times
Select different pseudo- User ID sequences, wherein the pseudo- User ID quantity in the puppet User ID sequence is no less than in current meter group
Intelligent electric meter quantity；Each intelligent electric meter in current meter group selects different from the pseudo- User ID sequence currently selected
Pseudo- User ID carrys out the original user ID in alternate data packet, and sends the data packet.
Preferably, the generating function of the pseudo- User ID sequence are as follows:
Wherein, f (key, time) is generating function, and n is natural number, and key indicates that group key, time indicate the time.
Preferably, each intelligent electric meter in the current meter group is multiple not according to the group key and time generation
Before the step of the pseudo- User ID sequence combined, the data-privacy guard method further include: at predetermined time intervals, same electricity
All intelligent electric meters in table group execute time synchronization operation.
Preferably, the group key periodically changes at any time.
Preferably, the data-privacy guard method further include: data aggregator receives the intelligent electric meter of multiple meter groups
The data packet of transmission parses all data packets of each meter group and obtains the total electricity consumption of each meter group, and by each electricity
The total electricity consumption of table group is sent to electricity provider.
It is in contrast to the prior art, the beneficial effects of the present invention are: by introducing group key and time change factor,
Generate the pseudo- User ID sequence of multiple and different combinations, intelligent electric meter come using pseudo- User ID corresponding in pseudo- User ID sequence
Original user ID in data packet is changed to pseudo- User ID, and sends data packet, is unable to get electricity provider or hacker
Information associated with user identity, so as to protect the electricity consumption privacy of user.
Detailed description of the invention
Fig. 1 is the flow diagram of the data-privacy guard method of the intelligent electric meter of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Refering to fig. 1, the data-privacy guard method of the intelligent electric meter of the embodiment of the present invention includes:
S1: multiple intelligent electric meters are divided into multiple meter groups according to preset strategy, and are distributed respectively not for each meter group
Same group key, wherein each intelligent electric meter has unique and fixed original user ID.
Wherein, each meter group has a group key, and all intelligent electric meters in a meter group share an electricity
The group key of table group.
S2: each intelligent electric meter in current meter group generates the pseudo- user of multiple and different combinations according to group key and time
ID sequence, and different pseudo- User ID sequences is selected in different times, wherein the pseudo- User ID quantity in pseudo- User ID sequence
Intelligent electric meter quantity in no less than current meter group.
Wherein, pseudo- User ID sequence includes multiple pseudo- User ID, and pseudo- User ID can be individual digit or letter, can also be with
It is string number, letter, additional character or their combination.The combination of pseudo- User ID in different pseudo- User ID sequences is not
Together.
In the present embodiment, the generating function of pseudo- User ID sequence are as follows:
Wherein, f (key, time) is generating function, and n is natural number, and key indicates that group key, time indicate the time.In group
When key is constant, the value of f (key, time) can be changed over time, that is to say, that in the pseudo- User ID sequence that each time generates
It is different, i.e., takes first value in time t1, take second value in time t2, take n-th of value in time tn.Each value is (i.e.
Pseudo- User ID sequence) in number represents pseudo- User ID, i.e., " 1 " represents the 1st pseudo- User ID, and " 2 " represent the 2nd puppet user
ID, " 3 " represent the 3rd pseudo- User ID.
Further, group key can be changed periodically at any time or by outside control change, such as staff
Group key is changed by actively issuing control instruction.When group key changes, the value of f (key, time) can change again.
S3: each intelligent electric meter in current meter group selects different pseudo- use from the pseudo- User ID sequence currently selected
Family ID carrys out the original user ID in alternate data packet, and sends data packet.
Where it is assumed that the n value in above-mentioned generating function is 3, then
When the time is t5, the value (i.e. pseudo- User ID sequence) of f (key, time) is [3,1,2].When intelligent electric meter is sent
When data packet, they will be according to the original user ID in pseudo- User ID sequence change data packet, i.e. intelligent electric meter 1, intelligent electric meter 2
Become 3,1 and 2 respectively with the original user ID of intelligent electric meter 3.
The time of other intelligent electric meters in time and the meter group in order to guarantee the intelligent electric meter in same meter group
Synchronous, in the present embodiment, each intelligent electric meter in current meter group generates multiple and different groups according to group key and time
Before the step of pseudo- User ID sequence of conjunction, data-privacy guard method further include: at predetermined time intervals, in same meter group
All intelligent electric meters execute time synchronization operation.
In the present embodiment, data-privacy guard method further include:
S4: data aggregator receives the data packet that the intelligent electric meter of multiple meter groups is sent, and it is all to parse each meter group
Data packet obtains the total electricity consumption of each meter group, and sends electricity provider for the total electricity consumption of each meter group.
In this way, the total electricity consumption of all intelligent electric meters remains unchanged, and electricity provider can not obtain each intelligent electric meter
True power information, to protect the electricity consumption privacy of user.
By the above-mentioned means, the present invention passes through by introducing group key and time change factor, to generate multiple and different groups
The pseudo- User ID sequence of conjunction, intelligent electric meter, will be original in data packet using pseudo- User ID corresponding in pseudo- User ID sequence
User ID is changed to pseudo- User ID, and sends data packet, is unable to get electricity provider or hacker associated with user identity
Information, so as to protect the electricity consumption privacy of user.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (5)
1. a kind of data-privacy guard method of intelligent electric meter characterized by comprising
Multiple intelligent electric meters are divided into multiple meter groups according to preset strategy, and it is close for each meter group to distribute different groups respectively
Key, wherein each intelligent electric meter has unique and fixed original user ID；
Each intelligent electric meter in current meter group generates the pseudo- User ID of multiple and different combinations according to the group key and time
Sequence, and different pseudo- User ID sequences is selected in different times, wherein the pseudo- User ID number in the puppet User ID sequence
Amount is no less than the intelligent electric meter quantity in current meter group；
Each intelligent electric meter in current meter group selects different pseudo- User ID from the pseudo- User ID sequence currently selected
Original user ID in alternate data packet, and send the data packet.
2. data-privacy guard method according to claim 1, which is characterized in that the generation letter of the puppet User ID sequence
Number are as follows:
Wherein, f (key, time) is generating function, and n is natural number, indicates pseudo- User ID, and key indicates that group key, time indicate
Time.
3. data-privacy guard method according to claim 1 or 2, which is characterized in that in the current meter group
It is described before each intelligent electric meter generates the step of pseudo- User ID sequence of multiple and different combinations according to the group key and time
Data-privacy guard method further include:
At predetermined time intervals, all intelligent electric meters in same meter group execute time synchronization operation.
4. data-privacy guard method according to claim 3, which is characterized in that the group key is periodic at any time
Change.
5. data-privacy guard method according to claim 1, which is characterized in that the data-privacy guard method is also wrapped
It includes:
Data aggregator receives the data packet that the intelligent electric meter of multiple meter groups is sent, and parses all data packets of each meter group and obtains
Electricity provider is sent to the total electricity consumption of each meter group, and by the total electricity consumption of each meter group.
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| CN201910264007.7A CN109951496A (en) | 2019-04-03 | 2019-04-03 | A kind of data-privacy guard method of intelligent electric meter |
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| CN201910264007.7A CN109951496A (en) | 2019-04-03 | 2019-04-03 | A kind of data-privacy guard method of intelligent electric meter |
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| US20130124850A1 (en) * | 2011-01-31 | 2013-05-16 | Universidad De Murcia | Smart grid and method for operating a smart grid |
| CN103237008A (en) * | 2013-03-22 | 2013-08-07 | 中国科学院上海微系统与信息技术研究所 | Alias-based data transmitting method and system in intelligent power grid |
| CN104219056A (en) * | 2014-09-16 | 2014-12-17 | 西安电子科技大学 | Privacy protection type real-time electric charge collecting method for intelligent power grid |
| KR101621931B1 (en) * | 2014-12-19 | 2016-05-17 | 한국인터넷진흥원 | Power information transmitting and receiving system in the smart grid |
| US20170019248A1 (en) * | 2014-09-30 | 2017-01-19 | Kabushiki Kaisha Toshiba | Homomorphic Based Method For Distributing Data From One or More Metering Devices To Two or More Third Parties |
| CN108234148A (en) * | 2016-12-14 | 2018-06-29 | 中科院-南京宽带无线移动通信研发中心 | Efficiently simultaneous safety type electricity meter data gathering system |
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2019
- 2019-04-03 CN CN201910264007.7A patent/CN109951496A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130124850A1 (en) * | 2011-01-31 | 2013-05-16 | Universidad De Murcia | Smart grid and method for operating a smart grid |
| CN103237008A (en) * | 2013-03-22 | 2013-08-07 | 中国科学院上海微系统与信息技术研究所 | Alias-based data transmitting method and system in intelligent power grid |
| CN104219056A (en) * | 2014-09-16 | 2014-12-17 | 西安电子科技大学 | Privacy protection type real-time electric charge collecting method for intelligent power grid |
| US20170019248A1 (en) * | 2014-09-30 | 2017-01-19 | Kabushiki Kaisha Toshiba | Homomorphic Based Method For Distributing Data From One or More Metering Devices To Two or More Third Parties |
| KR101621931B1 (en) * | 2014-12-19 | 2016-05-17 | 한국인터넷진흥원 | Power information transmitting and receiving system in the smart grid |
| US20160182233A1 (en) * | 2014-12-19 | 2016-06-23 | Korea Internet & Security Agency | Power information transmitting and receiving system in smart grid |
| CN108234148A (en) * | 2016-12-14 | 2018-06-29 | 中科院-南京宽带无线移动通信研发中心 | Efficiently simultaneous safety type electricity meter data gathering system |
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Application publication date: 20190628 |