CN106649544A - Electricity information data retrieving method and device - Google Patents
Electricity information data retrieving method and device Download PDFInfo
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Abstract
The invention discloses an electricity information data retrieving method and device, and relates to the field of power. The electricity information data retrieving method and device are used for improving the speed of electricity information data retrieving. The electricity information data retrieving method comprises the steps of using multiple electricity information data to construct an electricity information database with large capacity; conducting statistics on accumulated retrieving times of the electricity information data, and utilizing the electricity information data of which accumulated retrieving times meet an accumulated retrieving threshold value to construct a cache; searching the cache for the electricity information data which corresponds to the retrieving request according to a retrieving request; searching the electricity information database with large capacity for the electricity information data which corresponds to the retrieving request according to the retrieving request if the electricity information data which corresponds to the retrieving request is not searched in the cache. The electricity information data retrieving device comprises the electricity information data retrieving method. The electricity information data retrieving method is used for improving the speed of electricity information data retrieving.
Description
Technical field
The present invention relates to power domain, more particularly to a kind of power information data retrieval method and device.
Background technology
Intelligent electric meter as the important component part of power information acquisition system, accumulate over a long period can produce magnanimity use telecommunications
Breath data.In order to realize power monitoring, the purpose such as load prediction and using electricity wisely cost is finally reached, needs to enter power information
Row quick search and research and analyse, with the failure such as help quick detection to have a power failure, realize coordinating family and enterprise's electricity during peak of power consumption
The management of power uses such as power distribution.
Statistics shows that, for the access of magnanimity power information data, the access request for having 71% concentrates on 15%-
In 28% data, but, existing big data search method is not in view of this of power information data generally existing
Data access features, directly using existing big data search method, can restrict the speed of power information data retrieval.
The content of the invention
It is an object of the invention to provide a kind of power information data retrieval method and device, in retrieval magnanimity electricity consumption
During information data, the speed of power information data retrieval is lifted.
To achieve these goals, the present invention provides following technical scheme：
A kind of power information data retrieval method, including：
Step S1：Magnanimity power information database is built using a plurality of power information data；Statistics power information data
Accumulative retrieval number of times, the power information data for meeting accumulative retrieval threshold using accumulative retrieval number of times build caching；
Step S2：According to retrieval request, the power information data corresponding with retrieval request are searched in the buffer；
Step S3：If not finding the power information data corresponding with retrieval request in the buffer, please according to retrieval
Ask, the power information data corresponding with retrieval request are searched in magnanimity power information database.
Compared with prior art, the power information data retrieval method that the present invention is provided has the advantages that：
The power information data retrieval method that the present invention is provided, by the accumulative retrieval number of times for counting power information data,
The power information data for meeting accumulative retrieval threshold using accumulative retrieval number of times build caching, so can will retrieve number of times more
Power information data be stored in caching so that according to retrieval request retrieve power information data when, can retrieve in the buffer
The probability increase of the power information data corresponding with retrieval request, can so be greatly enhanced the retrieval of power information data
Speed；In addition, because the power information data stored in caching are to utilize Principle of Statistics, the retrieval number of times for filtering out is more
Power information data, so the power information data capacity stored in caching will be much smaller than the use in magnanimity power information database
Power information data capacity, searches the power information data corresponding with retrieval request so in the less caching of range of search
When, retrieval number of times can be reduced, so as to further improve the retrieval rate of power information data.And, even if in the buffer not
Find the power information data corresponding with retrieval request, it is also possible to which searching in magnanimity power information database please with retrieval
Seek corresponding power information data；Therefore, the power information data retrieval method that the present invention is provided can be avoided directly in inspection
The power information data corresponding with retrieval request are searched in the larger magnanimity power information database of rope scope, is greatly lifted
The retrieval rate of power information data.
The present invention provides a kind of power information data searcher, including：
Access module, cache module, the first retrieval module, the second retrieval module and control module；The output of access module
The input with the second retrieval module is held to be connected, the output end of cache module is connected with the input of the first retrieval module, controls
The output end of module is connected respectively with the input of the first retrieval module and the input of the second retrieval module；
Access module is used to build magnanimity power information database using a plurality of power information data；
Cache module is used to count the accumulative retrieval number of times of power information data, and using accumulative retrieval number of times accumulative inspection is met
The power information data of rope threshold value build caching；
Control module is used to send the first control instruction；
First retrieval module is used under the control of the first control instruction, according to retrieval request, searches in the buffer and inspection
Rope asks corresponding power information data；
When control module is additionally operable to not find in the buffer the power information data corresponding with retrieval request, is sent
Two control instructions；
Second retrieval module is used under the control of the second control instruction, according to retrieval request, in magnanimity power information number
According to the power information data corresponding with retrieval request of lookup in storehouse.
Compared with prior art, the beneficial effect of the power information data searcher that the present invention is provided and above-mentioned technical side
The beneficial effect of the power information data retrieval method that case is provided is identical, will not be described here.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart one of the power information data retrieval method that the embodiment of the present invention one is provided；
Fig. 2 is the flowchart 2 of the power information data retrieval method that the embodiment of the present invention one is provided；
Fig. 3 is the power information data that will be retrieved from magnanimity power information database that the embodiment of the present invention one is provided
The method flow diagram of write caching；
Fig. 4 is the method flow diagram by power information data write caching is prefetched that the embodiment of the present invention one is provided；
Fig. 5 is the structural representation one of the power information data searcher for providing the embodiment of the present invention two；
Fig. 6 is the structural representation two of the power information data searcher for providing the embodiment of the present invention two；
Fig. 7 is the structural representation three of the power information data searcher for providing the embodiment of the present invention two；
Fig. 8 is the structural representation four of the power information data searcher for providing the embodiment of the present invention two.
Reference：
100- access modules, 200- cache modules；
300- first retrieves module, the retrieval modules of 400- second；
500- control modules, 600- indexes set up module；
210- caches writing module, 220- counting modules；
230- cachings build module, 211- spaces judge module；
212- adds module, 213- user's importance degree judge module；
214- mark modules, 215- marker for judgment modules；
216- replacement modules, 700- prefetches module.
Specific embodiment
In order to further illustrate power information search method provided in an embodiment of the present invention and device, with reference to specification
Accompanying drawing is described in detail.
Embodiment one
Fig. 1 is referred to, the embodiment of the present invention one provides a kind of power information data retrieval method, including：
Step S1：Magnanimity power information database is built using a plurality of power information data；Statistics power information data
Accumulative retrieval number of times, the power information data for meeting accumulative retrieval threshold using accumulative retrieval number of times build caching；
Step S2：According to retrieval request, the power information data corresponding with retrieval request are searched in the buffer；
Step S3：If not finding the power information data corresponding with retrieval request in the buffer, please according to retrieval
Ask, the power information data corresponding with retrieval request are searched in magnanimity power information database.
The power information data retrieval provided by above-mentioned power information data retrieval method, the embodiment of the present invention one
Method, by the accumulative retrieval number of times for counting power information data, using accumulative retrieval number of times the use of accumulative retrieval threshold is met
Power information data build caching, so can will retrieve the more power information data of number of times and be stored in caching so that according to retrieval
During request retrieval power information data, the probability of the power information data corresponding with retrieval request can be in the buffer retrieved
Increase, can so be greatly enhanced the retrieval rate of power information data；In addition, because the power information number stored in caching
According to being to utilize Principle of Statistics, what is filtered out retrieves the more power information data of number of times, so what is stored in caching uses telecommunications
Breath data capacity will be much smaller than the power information data capacity in magnanimity power information database, so less in range of search
When searching the power information data corresponding with retrieval request in caching, retrieval number of times can be reduced, so as to further improve use
The retrieval rate of power information data.And, even if not finding the power information data corresponding with retrieval request in the buffer,
Also the power information data corresponding with retrieval request can be searched in magnanimity power information database；Therefore, the present invention is real
Applying the power information data retrieval method of the offer of example one can avoid directly in the larger magnanimity power information data of range of search
The power information data corresponding with retrieval request are searched in storehouse, the retrieval rate of power information data is greatly improved.
It should be noted that in the step of above-described embodiment S1, magnanimity can be built first with a plurality of power information data
Power information database, then counts the accumulative retrieval number of times of power information data, and using accumulative retrieval number of times accumulative inspection is met
The power information data of rope threshold value build caching, it is also possible to first count the accumulative retrieval number of times of power information data, using accumulative
Retrieval number of times meets the power information data of accumulative retrieval threshold and builds caching, it is also possible that using a plurality of power information data
While building magnanimity power information database, the accumulative retrieval number of times of power information data is counted, using accumulative retrieval number of times
The power information data for meeting accumulative retrieval threshold build caching, and the sequencing of the two processes is not limited thereto.
It is understood that because the species for building the power information data owning user of power information database is various more
Sample, in order to make a distinction to different types of user, by considering credit rating, the electricity consumption of user in the embodiment of the present invention one
The indexs such as amount, set up user's importance degree appraisement system, are weighed by importance degree score K in user's importance degree appraisement system
The importance degree of user, wherein, the size of K values represents the importance degree degree of user, and K values are bigger, and user's importance degree is higher, and K values are got over
Little, user's importance degree is lower, also, in concrete application, can arrange pre-set user importance degree threshold k 1 according to actual conditions,
If user's importance degree score K meets pre-set user importance degree threshold k 1, i.e. during K >=K1, then this user is judged as responsible consumer, if
User's importance degree score K is unsatisfactory for pre-set user importance degree threshold k 1, i.e. K ＜ K1, then judge this user as domestic consumer.
Specifically, while building magnanimity power information database using a plurality of power information data in step sl, press
According to the size of user's importance degree score K value, to a plurality of power information data for building magnanimity power information database user is increased
Importance degree label.
It should be noted that the step of above-described embodiment S2 also includes：It is important according to user by way of aggregat ion pheromones
User's importance degree of degree tag representation, a plurality of power information data in magnanimity power information database set up database rope
Draw, then, in step s 2, according to retrieval request, searched in the buffer by database index corresponding with retrieval request
Power information data, in step s3, if not finding the power information data corresponding with retrieval request, root in the buffer
According to retrieval request, the power information corresponding with retrieval request is searched in magnanimity power information database by database index
Data.The embodiment of the present invention one by way of aggregat ion pheromones, according to user's importance degree of user's importance degree tag representation, according to
A plurality of power information data in magnanimity power information database set up database index, are so being cached according to retrieval request
During with searching the power information data corresponding with retrieval request in magnanimity power information database, can just pass through the data set up
Storehouse index quickly finds the power information data corresponding with retrieval request, further improves recall precision.
Preferably, as shown in Fig. 2 in step s3, searched in magnanimity power information database by database index
After the power information data corresponding with retrieval request, also include：
Step S4：By the power information data retrieved from magnanimity power information database write cache, and according to
The difference of power information data, the power information data to retrieving from magnanimity power information database are counted, and are tired out
Meter retrieval number of times, the power information data that thus can be upgraded in time in caching, it is ensured that during later retrieval, search in the buffer
Probability to the power information data corresponding with retrieval request is bigger, so as to improve the retrieval rate of power information data.
Specifically, as shown in figure 3, the power information data retrieved from magnanimity power information database write is cached
Method include：
Step S410：Judge whether there is free free space in caching, if it is, proceeding to step S420；If not, proceeding to step
S430；
Step S420：The power information data retrieved from magnanimity power information database write is cached；
Step S430：Judge the importance degree for adding up the minimum power information data owning user of retrieval number of times in caching, be
It is no to meet pre-set user importance degree threshold value；If it is, proceeding to step S440；If not, proceeding to step S460；
Step S440：Whether marked add up the minimum power information data of retrieval number of times in judging to cache, if it is,
Proceed to step S460；If not, proceeding to step S450；
Step S450：Terminate retrieval, and add up the minimum power information data of retrieval number of times in tag cache；
Step S460：Using the power information data retrieved from magnanimity power information database, replace in caching and tire out
The minimum power information data of meter retrieval number of times.
By above-mentioned specific implementation process, the embodiment of the present invention one will retrieved from magnanimity power information database
To power information data write caching in when, it is necessary first to judge whether there is free free space in caching, if free in caching
Free space, then directly by the power information data retrieved from magnanimity power information database write caching, if there is slow
Deposit the situation of insufficient space, it is necessary to remove the minimum power information data of current accumulative retrieval number of times in caching, be arranged such
It is because in power information data retrieval, the probability that the power information data for retrieving before are retrieved again is big, so this
Inventive embodiments one are counted by the power information data to write caching, are often retrieved once, the power information number
According to counting add one, so in inadequate buffer space, replace slow with the data that retrieve from magnanimity power information database
Add up the minimum power information data of retrieval number of times in depositing, this ensures that there that store in caching is to retrieve the more use of number of times
Power information data, and then when power information data are retrieved according to retrieval request, retrieve in the buffer relative with retrieval request
The probability increase of the power information data answered, so as to further improve the retrieval rate of power information data；In addition, because caching
The power information data of middle storage are to utilize Principle of Statistics, the more power information data of the retrieval number of times for filtering out, so
The power information data capacity stored in caching will be much smaller than the power information data capacity in magnanimity power information database, this
When sample searches the power information data corresponding with retrieval request in the less caching of range of search, retrieval time can be reduced
Number, so as to further improve the retrieval rate of power information data.
Preferably, in order to further improve the retrieval rate of the power information data of responsible consumer, the embodiment of the present invention one
In the power information data write caching that will be retrieved from magnanimity power information database, if inadequate buffer space, need
Before removing the power information data for adding up retrieval number of times minimum in caching, also need to judge to add up retrieval number of times minimum in caching
Whether the importance degree of data owning user meets pre-set user importance degree threshold value, that is, judge that the minimum data of accumulative retrieval number of times are
It is no to belong to responsible consumer, if being not belonging to responsible consumer, directly proceed to step S460；If belonging to responsible consumer, in addition it is also necessary to sentence
Whether marked add up the minimum power information data of retrieval number of times in the disconnected caching, if marked, directly proceed to step
Rapid S460；If not marked, just directly terminate retrieval, and add up the minimum power information number of retrieval number of times in tag cache
According to that is, the power information data in holding caching are constant, it is only necessary to the power information minimum to adding up retrieval number of times in current cache
Data make marks, that is to say, that if inadequate buffer space needs to remove adds up the minimum electricity consumption of retrieval number of times in caching
During information data, if the minimum power information data of accumulative retrieval number of times belong to responsible consumer, then remove the power information number
According to needing through secondary-confirmation process, judge the power information data of the responsible consumer to add up retrieval in caching when first time
During the data of number of times minimum, wouldn't remove, only it be marked, when the power information data for judging the responsible consumer again
To add up to retrieve in caching during the data of number of times minimum, then execution step S460, i.e. using from magnanimity power information database
The power information data for retrieving, replace and add up the minimum power information data of retrieval number of times in caching, are so updating caching
In power information data when, ensuring that the power information data of responsible consumer can retain in the buffer longer time,
The retrieval rate of the power information data of responsible consumer further can be improved in follow-up retrieval.
It should be noted that as shown in Fig. 2 the power information search method that the embodiment of the present invention one is provided also includes：
Step S5：Whether the importance degree of the power information data owning user that judgement is retrieved meets pre-set user importance degree
Threshold value；If it is, proceeding to step S6；If not, terminating retrieval；
Step S6：According to database index, choose and the power information being retrieved is located in magnanimity power information database
Power information data after data, obtain prefetching power information data；And will prefetch power information data write caching.
Because the power information data retrieval method that the embodiment of the present invention one is provided is by way of aggregat ion pheromones, according to
User's importance degree of user's importance degree tag representation, a plurality of power information data in magnanimity power information database are set up
Database index, so, in magnanimity power information database power information data put in order and index put in order
Unanimously, i.e. in magnanimity power information database power information data be also according to the tactic of user's importance degree, so,
If it is judged that the power information data for currently retrieving from magnanimity power information database belong to responsible consumer, then come
The importance degree of the power information data behind the power information data is also higher, in order to ensure responsible consumer next time retrieval when
Speed, the embodiment of the present invention one is chosen in magnanimity power information database, although not currently being retrieved, positioned at being retrieved
The power information data behind power information data for arriving, obtain prefetching power information data, then this are prefetched into power information
Data write caching, which adds the quantity of the power information data of the responsible consumer stored in caching, so as to follow-up
During retrieval, it is ensured that the power information data retrieval speed of responsible consumer.
Specifically, as shown in figure 4, the method for prefetching power information data write caching is included：
Step S610：Judge whether there is free free space in caching, if it is, proceeding to step S620；If not, proceeding to step
S630；
Step S620：Power information data write caching will be prefetched；
Step S630：Judge the importance degree for adding up the minimum power information data owning user of retrieval number of times in caching, be
It is no to meet pre-set user importance degree threshold value, if it is, proceeding to step S640；If not, proceeding to step S660；
Step S640：Whether marked add up the minimum power information data of retrieval number of times in judging to cache, if it is,
Proceed to step S660；If not, proceeding to step S650；
Step S650：Terminate retrieval, and add up the minimum power information data of retrieval number of times in tag cache；
Step S660：Add up the minimum power information number of retrieval number of times in caching using prefetching power information data and replacing
According to.
By above-mentioned specific implementation process, the embodiment of the present invention one will be in it will prefetch power information data write caching
When, it is necessary first to judge whether there is free free space in caching, if being free free space in caching, will directly prefetch power information
Data write caching, if there is the situation of inadequate buffer space, will retrieve with above-mentioned from magnanimity power information database
The process of power information data write caching be similar to, it is necessary to clear out of and add up the minimum power information of retrieval number of times in caching
Data, are arranged such the quantity of the power information data that increased the responsible consumer stored in caching, so as in later retrieval,
Ensure that the power information data retrieval speed of responsible consumer.
Preferably, in order to further improve the retrieval rate of the power information data of responsible consumer, the embodiment of the present invention one
Will prefetch power information data write caching when, if inadequate buffer space, with it is above-mentioned will be from magnanimity power information database
In the process of power information data write caching that retrieves be similar to, also need to judge to add up the minimum data of retrieval number of times in caching
Whether the importance degree of owning user meets pre-set user importance degree threshold value, that is, judge to add up the minimum data of retrieval number of times in caching
Whether belong to responsible consumer, if being not belonging to responsible consumer, directly proceed to step S660；If belonging to responsible consumer, in addition it is also necessary to
Judge whether the power information data for adding up retrieval number of times minimum in the caching are marked, if marked, directly proceed to
Step S660；If not marked, just directly terminate retrieval, and add up the minimum power information of retrieval number of times in tag cache
Data, that is, keep the power information data in caching constant, it is only necessary to the power information number minimum to adding up retrieval number of times in caching
According to making marks, that is to say, that if inadequate buffer space need to remove add up in caching retrieval number of times it is minimum use telecommunications
During breath data, if adding up the minimum power information data of retrieval number of times in caching belongs to responsible consumer, then remove this and use telecommunications
Breath data are needed through secondary-confirmation process, judge the power information data of the responsible consumer to add up in caching in first time
During the data of retrieval number of times minimum, wouldn't remove, only it be marked, when the power information for judging the responsible consumer again
When data are to add up the data of retrieval number of times minimum in caching, then execution step S660, i.e. replaced using power information data are prefetched
Change in caching and add up the minimum power information data of retrieval number of times.So in the power information data in updating caching, just protect
Having demonstrate,proved the power information data of responsible consumer can retain in the buffer longer time, and then can carry in follow-up retrieval
The retrieval rate of the power information data of high responsible consumer.
Embodiment two
Refer to Fig. 5, the power information data searcher that the embodiment of the present invention two is provided, including it is access module 100, slow
Retrieval module 300, the second retrieval module 400 of storing module 200, first and control module 500；The output end of access module 100 with
The input of the second retrieval module 400 is connected, and the output end of cache module 200 is connected with the input of the first retrieval module 300,
Input and the input phase of the second retrieval module 400 that the output end of control module 500 retrieves module 300 with first respectively
Even；
Access module 100 is used to build magnanimity power information database using a plurality of power information data；
Cache module 200 is used to count the accumulative retrieval number of times of power information data, meets tired using accumulative retrieval number of times
The power information data of meter retrieval threshold build caching；
Control module 500 is used to send the first control instruction；
First retrieval module 300 is used under the control of the first control instruction, according to retrieval request, search in the buffer with
The corresponding power information data of retrieval request；
When control module 500 is additionally operable to not find in the buffer the power information data corresponding with retrieval request, send out
Go out the second control instruction；
Second retrieval module 400 is used under the control of the second control instruction, according to retrieval request, in magnanimity power information
The power information data corresponding with retrieval request are searched in database.
When being embodied as, refer to Fig. 5, using the embodiment of the present invention two provide power information data searcher to
Power information data enter line retrieval.
Magnanimity power information database is built by a plurality of power information data using access module 100, and using slow
Storing module 200 counts the accumulative retrieval number of times of power information data, and using accumulative retrieval number of times the use of accumulative retrieval threshold is met
Power information data build caching；Then, the first control instruction is sent using control module 500, and according to retrieval request, utilizes the
One retrieval module 300 searches the power information number corresponding with retrieval request under the control of the first control instruction, in the buffer
According to when not finding the power information data corresponding with retrieval request in the buffer, using control module 500 the second control being sent
System instruction, and according to retrieval request, using the second retrieval module 400 under the control of the second control instruction, in magnanimity telecommunications
The power information data corresponding with retrieval request are searched in breath database.
Compared with prior art, the embodiment of the present invention two provide power information data searcher beneficial effect with it is upper
The beneficial effect for stating the power information data retrieval method of the offer of embodiment one is identical, will not be described here.
Specifically, as shown in figure 5, the power information data searcher that the embodiment of the present invention two is provided also is built including index
Formwork erection block 600；The input that the output end of access module 100 sets up module 600 with index is connected, and index sets up module 600
Output end is connected respectively with the input of the first retrieval module 300 and the input of the second retrieval module 400；
Module 600 is set up using index, by way of aggregat ion pheromones, according to user's weight of user's importance degree tag representation
Spend, a plurality of power information data in magnanimity power information database set up database index；So according to retrieval
Request, when searching the power information data corresponding with retrieval request in the buffer using the first retrieval module 300, just can pass through
The database index of foundation quickly finds the power information data corresponding with retrieval request, further improves retrieval effect
Rate；Or, if not finding the power information data corresponding with retrieval request in the buffer, also dependent on retrieval request,
It is corresponding with retrieval request by database index lookup in magnanimity power information database using the second retrieval module 400
Power information data when, now also can pass through set up database index quickly find the use corresponding with retrieval request
Power information data, so as to further improve recall precision.
It is understood that as shown in fig. 6, the cache module 200 in the embodiment of the present invention two includes caching writing module
210th, counting module 220 and caching build module 230, wherein the output end of the second retrieval module 400 and caching writing module 210
Input be connected, cache writing module 210 output end respectively with caching build module 230 input and counting module
220 input is connected, and caching builds the output end of module 230 and is connected with the input of the first retrieval module 300；
When being embodied as, searched in magnanimity power information database by database index corresponding with retrieval request
After power information data, using caching writing module 210, the power information number that will be retrieved from magnanimity power information database
According to write caching；
Power information data of the module 230 by retrieving from magnanimity power information database are built using caching to build
Caching；
According to the difference of power information data, using counting module, 220 pairs retrieve from magnanimity power information database
Power information data counted, obtain accumulative retrieval number of times.So in inadequate buffer space, will can add up in caching
The minimum power information data of retrieval number of times are removed from the cache, and then write the new retrieval from magnanimity power information database
The power information data for arriving, so as to be updated to caching in time, so, the power information data in caching will always
The more power information data of retrieval number of times, so as to ensure that the power information corresponding with retrieval request is retrieved in the buffer
The probability increase of data, and then improve the retrieval rate of power information data.
Specifically, Fig. 7 is referred to, caching writing module 210 includes space judge module 211, adds module 212, user
Importance degree judge module 213, mark module 214, marker for judgment module 215 and replacement module 216；Wherein, the second retrieval module
400 output end is connected with the input of space judge module 211, the output end of space judge module 211 respectively with add mould
The input of block 212 is connected with the input of user's importance degree judge module 213, the output of user's importance degree judge module 213
End be connected with the input of marker for judgment module 215 and the input of replacement module 216 respectively, marker for judgment module 215 it is defeated
Go out end to be connected with the input and mark module 214 of replacement module 216 respectively, the output end of replacement module 216 respectively with caching
Build module 230 input be connected with the input of counting module 220, addition module 212 output end respectively with count module
The input that the input of block 220 builds module 230 with caching is connected, and the output end of counting module 220 is important with user respectively
The input of degree judge module 213 is connected with the input of replacement module 216；
In the specific implementation, utilization space judge module 211 judges whether there is free free space in caching；
When being free free space in judging caching, the power information data being retrieved are write using module 212 is added
Enter caching；
When there is no free space in judging caching, judge to add up in caching using user's importance degree judge module 213
Whether the importance degree of the minimum data owning user of retrieval number of times meets pre-set user importance degree threshold value；
Without free space in caching is judged, and add up the weight of the minimum data owning user of retrieval number of times in caching
Spend when meeting pre-set user importance degree threshold value, judge to add up in caching retrieval number of times using marker for judgment module 215 minimum
Whether power information data are marked；
Without free space in caching is judged, add up to be used belonging to the minimum power information data of retrieval number of times in caching
The importance degree at family meets pre-set user importance degree threshold value, and the minimum power information data of accumulative retrieval number of times are not marked in caching
When recording a demerit, retained using mark module 214 and add up the minimum power information data of retrieval number of times in caching, and tired out in tag cache
The minimum power information data of meter retrieval number of times；
Add up belonging to the minimum power information data of retrieval number of times without free space and in caching in judging to cache
When the importance degree of user is unsatisfactory for pre-set user importance degree threshold value, using replacement module 216 with from magnanimity power information database
In the power information data that retrieve, replace and add up the minimum power information data of retrieval number of times in caching, so in time more
On the premise of power information data in new caching, the power information data that also ensure that responsible consumer retain in the buffer longer
Time；
Or, without free space in caching is judged, the minimum power information data of retrieval number of times are added up in caching
The importance degree of owning user meets pre-set user importance degree threshold value, and adds up the minimum power information data of retrieval number of times in caching
When affiliated power information data are marked, it is also possible to retrieved with from magnanimity power information database using replacement module 216
The power information data for arriving, replace and add up the minimum power information data of retrieval number of times in caching, so in the caching that upgrades in time
In power information data on the premise of, when also ensure that the power information data of responsible consumer retain in the buffer longer
Between.
It should be noted that as shown in figure 8, the power information data searcher that the embodiment of the present invention two is provided also includes
Prefetch module 700；Wherein, the output end of the second retrieval module 400 is connected with the input for prefetching module 700, prefetches module 700
Output end be connected with the input of space judge module 211；
In the specific implementation, will examined from magnanimity power information database using replacement module 216 or addition module 212
After the power information write cache module that rope is arrived, judged from magnanimity power information data using user's importance degree judge module 213
Whether the power information data retrieved in storehouse meet pre-set user importance degree threshold value；Using user's importance degree judge module
213 when judging that the power information data retrieved from magnanimity power information database meet pre-set user importance degree threshold value,
Using module 700 is prefetched according to database index, choose and the power information being retrieved is located in magnanimity power information database
Power information data after data, obtain prefetching power information data；Then, continue with space judge module 211 to judge
Whether there is space in caching；
When being free free space in judging caching, power information data write caching will be prefetched using module 212 is added；
When there is no free space in judging caching, judge to add up in caching using user's importance degree judge module 213
Whether the importance degree of the minimum power information data owning user of retrieval number of times meets pre-set user importance degree threshold value；
Without free space in caching is judged, and add up in caching belonging to the minimum power information data of retrieval number of times
When the importance degree of user meets pre-set user importance degree threshold value, judge to add up retrieval time in caching using marker for judgment module 215
Whether the minimum power information data of number are marked；
Without free space in caching is judged, add up to be used belonging to the minimum power information data of retrieval number of times in caching
The importance degree at family meets pre-set user importance degree threshold value, and the minimum power information data of accumulative retrieval number of times are not marked in caching
When recording a demerit, retained using mark module 214 and add up the minimum power information data of retrieval number of times in caching, terminate retrieval, and marked
Add up the minimum power information data of retrieval number of times in note caching；
Without free space in caching is judged, and add up in caching belonging to the minimum power information data of retrieval number of times
When the importance degree of user is unsatisfactory for pre-set user importance degree threshold value, using replacement module 216 with power information data are prefetched, replace
Add up the minimum power information data of retrieval number of times in caching.
Or, without free space in caching is judged, the minimum power information data of retrieval number of times are added up in caching
The importance degree of owning user meets pre-set user importance degree threshold value, and adds up the minimum power information data of retrieval number of times in caching
When marked, it is also possible to using replacement module 216 with power information data are prefetched, replace and add up in caching retrieval number of times minimum
Power information data.
Because it is by poly- that index sets up module 600 in the power information data searcher that the embodiment of the present invention two is provided
The mode of collection index is more in magnanimity power information database according to user's importance degree of user's importance degree tag representation
Bar power information data set up database index, so, power information data puts in order in magnanimity power information database
Consistent with putting in order for index, i.e., power information data are also according to the suitable of user's importance degree in magnanimity power information database
Sequence arrangement, so, if it is judged that the power information data for currently retrieving from magnanimity power information database belong to weight
Want user, then the importance degree for coming power information data behind the data is also higher, in order to ensure responsible consumer in next time
Speed during retrieval, the embodiment of the present invention two is chosen in magnanimity power information database using module 700 is prefetched, although currently not
It is retrieved, but the power information data behind the power information data being retrieved, obtain prefetching data, then will
This prefetches power information data write caching, which adds the number of the power information data of the responsible consumer stored in caching
Amount, so as in later retrieval, it is ensured that the power information data retrieval speed of responsible consumer.
And, the embodiment of the present invention two is in the power information data in updating caching, it is ensured that the electricity consumption of responsible consumer
Information data can retain in the buffer longer time, so can improve responsible consumer in follow-up retrieval use telecommunications
The retrieval rate of breath data.
In the description of above-mentioned embodiment, specific features, structure, material or feature can be at any one or many
Combine in an appropriate manner in individual embodiment or example.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the scope of the claims.
Claims (11)
1. a kind of power information data retrieval method, it is characterised in that include：
Step S1：Magnanimity power information database is built using a plurality of power information data；Count the accumulative of power information data
Retrieval number of times, the power information data for meeting accumulative retrieval threshold using accumulative retrieval number of times build caching；
Step S2：According to retrieval request, the power information data corresponding with retrieval request are searched in the buffer；
Step S3：If not finding the power information data corresponding with retrieval request in the buffer, according to retrieval request,
The power information data corresponding with retrieval request are searched in magnanimity power information database.
2. power information data retrieval method according to claim 1, it is characterised in that step S1 also includes：
By way of aggregat ion pheromones, according to user's importance degree of user's importance degree tag representation, according to magnanimity power information number
A plurality of power information data according to storehouse set up database index；
Step S2 includes：According to retrieval request, searched in the buffer by database index corresponding with retrieval request
Power information data；
In step S3, according to retrieval request, the use corresponding with retrieval request is searched in magnanimity power information database
The method of power information data includes：According to retrieval request, by database index search in magnanimity power information database with
The corresponding power information data of retrieval request.
3. power information data retrieval method according to claim 2, it is characterised in that by database index in magnanimity
Search after the power information data corresponding with retrieval request in power information database, also include：
Step S4：The power information data retrieved from magnanimity power information database write is cached, and according to telecommunications
The difference of breath data, the power information data to retrieving from magnanimity power information database are counted, and obtain accumulative inspection
Rope number of times.
4. power information data retrieval method according to claim 3, it is characterised in that will be from magnanimity in step S4
The method of the power information data write caching retrieved in power information database includes：
Step S410：Judge whether there is free free space in caching, if it is, proceeding to step S420；If not, proceeding to step
S430；
Step S420：The power information data retrieved from magnanimity power information database write is cached；
Step S430：Judge the importance degree for adding up the minimum power information data owning user of retrieval number of times in caching, if full
Sufficient pre-set user importance degree threshold value；If it is, proceeding to step S440；If not, proceeding to step S460；
Step S440：Whether marked add up the minimum power information data of retrieval number of times in judging to cache, if it is, proceeding to
Step S460；If not, proceeding to step S450；
Step S450：Terminate retrieval, and add up the minimum power information data of retrieval number of times in tag cache；
Step S460：Using the power information data retrieved from magnanimity power information database, replace and add up in caching inspection
The minimum power information data of rope number of times.
5. power information data retrieval method according to claim 3, it is characterised in that the power information data retrieval
Method also includes：
Step S5：Whether the importance degree of the power information data owning user that judgement is retrieved meets pre-set user importance degree threshold
Value；If it is, proceeding to step S6；If not, terminating retrieval；
Step S6：According to database index, choose and the power information data being retrieved are located in magnanimity power information database
Power information data afterwards, obtain prefetching power information data；And will prefetch power information data write caching.
6. power information data retrieval method according to claim 5, it is characterised in that power information data will be prefetched and write
Entering the method for caching includes：
Step S610：Judge whether there is free free space in caching, if it is, proceeding to step S620；If not, proceeding to step
S630；
Step S620：Power information data write caching will be prefetched；
Step S630：Judge the importance degree for adding up the minimum power information data owning user of retrieval number of times in caching, if full
Sufficient pre-set user importance degree threshold value, if it is, proceeding to step S640；If not, proceeding to step S660；
Step S640：Whether marked add up the minimum power information data of retrieval number of times in judging to cache, if it is, proceeding to
Step S660；If not, proceeding to step S650；
Step S650：Terminate retrieval, and add up the minimum power information data of retrieval number of times in tag cache；
Step S660：Add up the minimum power information data of retrieval number of times in caching using prefetching power information data and replacing.
7. a kind of power information data searcher, it is characterised in that include：Access module, cache module, the first retrieval mould
Block, the second retrieval module and control module；The output end of the access module is connected with the input of the second retrieval module, described
The output end of cache module is connected with the input of the first retrieval module, and the output end of the control module is retrieved respectively with first
The input of the input of module and the second retrieval module is connected；
The access module is used to build magnanimity power information database using a plurality of power information data；
The cache module is used to count the accumulative retrieval number of times of power information data, and using accumulative retrieval number of times accumulative inspection is met
The power information data of rope threshold value build caching；
The control module is used to send the first control instruction；
The first retrieval module is used under the control of the first control instruction, according to retrieval request, searches in the buffer and inspection
Rope asks corresponding power information data；
When the control module is additionally operable to not find in the buffer the power information data corresponding with retrieval request, is sent
Two control instructions；
The second retrieval module is used under the control of the second control instruction, according to retrieval request, in magnanimity power information number
According to the power information data corresponding with retrieval request of lookup in storehouse.
8. power information data searcher according to claim 7, it is characterised in that the power information data retrieval
Device also sets up module including index；The input that the output end of the access module sets up module with the index is connected, institute
State index and set up the output end of module and be connected with the input of the first retrieval module and the input of the second retrieval module respectively；
The index sets up module for by way of aggregat ion pheromones, the user according to user's importance degree tag representation to be important
Degree, a plurality of power information data in magnanimity power information database set up database index；
The first retrieval module is used for according to retrieval request, is searched in the buffer by database index relative with retrieval request
The power information data answered；
The second retrieval module is used for according to retrieval request, is searched in magnanimity power information database by database index
The power information data corresponding with retrieval request.
9. power information data searcher according to claim 8, it is characterised in that the cache module includes caching
Writing module, counting module and caching build module, the output end of the second retrieval module and the input of caching writing module
End is connected, and the output end of the caching writing module builds respectively the input of module and the input phase of counting module with caching
Even, the output end of the caching structure module is connected with the input of the described first retrieval module；
The caching writing module is used to be searched and retrieval request phase in magnanimity power information database by database index
After corresponding power information data, the power information data retrieved from magnanimity power information database write is cached；
The caching builds module to be used to utilize the power information data structure retrieved from magnanimity power information database slow
Deposit；
The counting module is used for according to the difference of power information data, to the use retrieved from magnanimity power information database
Power information data are counted, and obtain accumulative retrieval number of times.
10. power information data searcher according to claim 9, it is characterised in that the caching writing module bag
Include space judge module, add module, user's importance degree judge module, marker for judgment module, mark module and replacement module；Institute
The output end for stating the second retrieval module is connected with the input of space judge module, the output end difference of the space judge module
Be connected with the input and the input of user's importance degree judge module of module is added, user's importance degree judge module it is defeated
Go out end be connected with the input of marker for judgment module and the input of replacement module respectively, the marker for judgment module it is defeated
Go out end to be connected with the input and the mark module of the replacement module respectively, the output end of the replacement module respectively with delay
Deposit build module input be connected with the input of counting module, it is described addition module output end respectively with the count module
The input of block and the caching build the input of module and are connected, the output end of the counting module respectively with user's importance degree
The input of judge module is connected with the input of replacement module；
The space judge module is used to judge whether there is free free space in caching；
The addition module is used for when being free free space in judging caching, and the power information data being retrieved write is slow
Deposit；
User's importance degree judge module is used for when not having free space in judging caching, judges to add up retrieval in caching
Whether the importance degree of the minimum power information data owning user of number of times meets pre-set user importance degree threshold value；
The marker for judgment module is used to judge no free space in caching is judged, and accumulative retrieval time in caching
When the importance degree of the minimum power information data owning user of number meets pre-set user importance degree threshold value, judge to add up inspection in caching
Whether the minimum power information data of rope number of times are marked；
The mark module is used in caching is judged without free space, and what accumulative retrieval number of times was minimum in caching uses telecommunications
The importance degree of breath data owning user meets pre-set user importance degree threshold value, and add up in caching retrieval number of times it is minimum use telecommunications
When the affiliated power information data of breath data are not marked, retain and add up the minimum power information data of retrieval number of times in caching,
And add up to retrieve the minimum power information data of number of times in tag cache；
Judge cache in without free space and cache in add up retrieval number of times minimum power information data owning user
Importance degree when being unsatisfactory for pre-set user importance degree threshold value, or, without free space in caching is judged, inspection is added up in caching
The importance degree of the minimum power information data owning user of rope number of times meets pre-set user importance degree threshold value, and adds up inspection in caching
When the minimum affiliated power information data of power information data of rope number of times are marked, the replacement module is used for using from magnanimity
The power information data retrieved in power information database, replace and add up the minimum power information number of retrieval number of times in caching
According to.
11. power information data searchers according to claim 10, it is characterised in that the power information data inspection
Rope device also includes prefetching module；The output end of the second retrieval module is connected with the input for prefetching module, described
The output end for prefetching module is connected with the input of the space judge module；
The module that prefetches is used to meet pre-set user in the importance degree of the power information data owning user for judging to retrieve
During importance degree threshold value, according to database index, choose and the power information number being retrieved is located in magnanimity power information database
Power information data according to after, obtain prefetching power information data；
The addition module is additionally operable to when being free free space in judging caching, will prefetch power information data write caching；
Judge cache in without free space and cache in add up retrieval number of times minimum power information data owning user
Importance degree when being unsatisfactory for pre-set user importance degree threshold value, or, without free space in caching is judged, inspection is added up in caching
The importance degree of the minimum power information data owning user of rope number of times meets pre-set user importance degree threshold value, and adds up inspection in caching
When the minimum affiliated power information data of power information data of rope number of times are marked, the replacement module is additionally operable to utilize and prefetches
Power information data are replaced and add up the minimum power information data of retrieval number of times in caching.
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