CN109063195B - A kind of information retrieval method and device - Google Patents
A kind of information retrieval method and device Download PDFInfo
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- CN109063195B CN109063195B CN201811015298.8A CN201811015298A CN109063195B CN 109063195 B CN109063195 B CN 109063195B CN 201811015298 A CN201811015298 A CN 201811015298A CN 109063195 B CN109063195 B CN 109063195B
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Abstract
The application provides a kind of information retrieval method, is encoded this method comprises: treating retrieval number, obtains retrieval encoded radio;From information table, record information corresponding with the retrieval encoded radio is inquired, the information table includes the corresponding relationship between encoded radio and record information;If inquiring record information corresponding with the retrieval encoded radio, it is based on the retrieval encoded radio and the record information, generation search result corresponding with the number to be retrieved.
Description
Technical field
This application involves technical field of information processing, in particular to a kind of information retrieval method and device.
Background technique
With the continuous social and economic development, city vehicle quantity is continuously increased, and thereby results in traffic congestion and traffic is disobeyed
The problems such as method, also gets worse.Vehicle is monitored in places such as highway, city intersection, harbour and bases, it is right
Traffic control and traffic optimization have important references meaning.
Since each car corresponds to unique license plate number, by being tracked and monitoring to license plate number, supervised for traffic
It controls and provides reliable data supporting to the management of illegal vehicle, and be to monitor and be managed illegal vehicle to require to vehicle
Trade mark code carries out real-time retrieval, and the prior art is directly to carry out retrieval or fuzzy search to license plate number, when depositing in database
When containing a large amount of license plate numbers, directly comparison license plate number time-consuming is more, and recall precision is lower.
Summary of the invention
In view of this, the application's is designed to provide a kind of information retrieval method and device, for solving the prior art
The problem of middle retrieval time-consuming and inefficiency.
In a first aspect, the embodiment of the present application provides a kind of vehicle number search method, this method comprises:
It treats retrieval number to be encoded, obtains retrieval encoded radio;
From information table, inquire corresponding with retrieval encoded radio record information, the information table include encoded radio with
Record the corresponding relationship between information;
If inquiring record information corresponding with the retrieval encoded radio, it is based on the retrieval encoded radio and the record
Information generates search result corresponding with the number to be retrieved.
Optionally, the retrieval number for the treatment of is encoded, comprising:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded.
It is optionally, described to judge in the number to be retrieved whether to include setting character, comprising:
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number with
Corresponding relationship between encoded radio determines the encoded radio of the number to be retrieved.
Optionally, further includes:
From the information table, screening is located at encoded radio and record information in preset time period;
For each encoded radio in preset time period, the corresponding record information of the encoded radio is counted, and corresponding record should
Encoded radio;
Each encoded radio and corresponding record information based on record determine record letter corresponding with the retrieval encoded radio
Breath.
Optionally, further includes:
From preset unmatch list, inquiry and the matched encoded radio of the retrieval encoded radio, the unmatch list include
At least one encoded radio;
If inquire with the matched encoded radio of the retrieval encoded radio, abandon the retrieval encoded radio;
It is inquired and the inspection from information table if not inquiring with the matched encoded radio of the retrieval encoded radio, execution
The step of rope encoded radio corresponding record information.
Second aspect, the embodiment of the present application provide a kind of vehicle number retrieval device, which includes:
Coding module is encoded for treating retrieval number, obtains retrieval encoded radio;
Enquiry module, for inquiring record information corresponding with the retrieval encoded radio, the information table from information table
Including the corresponding relationship between encoded radio and record information;
Generation module, if being compiled for inquiring record information corresponding with the retrieval encoded radio based on the retrieval
Code value and the record information generate search result corresponding with the number to be retrieved.
Optionally, the coding module is specifically used for:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded.
Optionally, the coding module is also used to:
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number with
Corresponding relationship between encoded radio determines the encoded radio of the number to be retrieved.
Optionally, further includes:
Screening module, for from the information table, screening to be located at encoded radio and record information in preset time period;
Statistical module, for counting each encoded radio and corresponding record information in the preset time period;
Determining module, for each encoded radio and corresponding record information, determination and the retrieval encoded radio based on statistics
Corresponding record information.
The third aspect, the embodiment of the present application provide a kind of computer equipment and include memory, processor and be stored in institute
The computer program that can be run on memory and on the processor is stated, the processor executes real when the computer program
The step of existing above method.
Information retrieval method provided by the embodiments of the present application is treated retrieval number and is encoded, obtains retrieval encoded radio;From
In information table, inquiry record information corresponding with retrieval encoded radio, if inquiring record information corresponding with retrieval encoded radio,
Based on retrieval encoded radio and record information, search result corresponding with number to be retrieved is generated.By being compiled to retrieval number
Code, converts numeric type encoded radio for number to be retrieved, can greatly reduce and retrieve in the information table for including content data
The time of data improves recall precision.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of flow diagram of information retrieval method provided by the embodiments of the present application;
Fig. 2 is a kind of schematic diagram of information storage provided by the embodiments of the present application;
Fig. 3 is a kind of structural schematic diagram of information indexing device provided by the embodiments of the present application;
Fig. 4 is a kind of structural schematic diagram of computer equipment 400 provided by the embodiments of the present application.
Specific embodiment
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
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
The embodiment of the present application provides a kind of information retrieval method, as shown in Figure 1, this method comprises:
S101 treats retrieval number and is encoded, obtains retrieval encoded radio;
Here, text, letter and number have been generally comprised in number to be retrieved, can be the license plate number of vehicle, student number,
Work number etc., wherein vehicle can be bicycle, electric vehicle, automobile, electric car etc., and the application not limits this;To be checked
When rope number is the license plate number of vehicle, number to be retrieved may include standard license plate number, non-standard license plate number and obscure
License plate number, standard license plate number are generally 7 license plate numbers, and e.g., the license plate numbers such as private vehicle, utility car are e.g., first
Letter to make, leading, learning, warning, hanging, army, south, sea and sky etc. license plate number, non-standard license plate is typically less than or is greater than 7
License plate number, fuzzy license plate number is generally the license plate number that is difficult to, or only recognizes wherein several numbers, e.g.,
" capital A " is only recognized for standard license plate number " capital A12345 ", then the number is then fuzzy license plate number;It retrieves in encoded radio
It only include number.
In order to facilitate the retrieval in later period, fuzzy license plate number Vacancy is replaced by " * ", and e.g., capital A can be expressed as " capital
A* ", each of fuzzy license plate number " * " can account for 0 character, a character or multiple characters.
It treats retrieval number to be encoded, including character once:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded;
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number with
Corresponding relationship between encoded radio determines the encoded radio of the number to be retrieved.
Here, setting character can be the characters such as *, #, and the application not limits this.
In specific implementation, it after receiving number to be retrieved, first determines whether in number to be retrieved whether to include setting
Character can determine that number to be retrieved is standard number or non-standard number if not including setting character in number to be retrieved
Code, is based further on preset coding rule and encodes to standard number or non-standard number.If including in number to be retrieved
At least one setting character, it is determined that number to be retrieved is fuzzy number, by corresponding between preset number and encoded radio
Relationship determines the encoded radio of fuzzy number, and obtained encoded radio only includes number.In this way, comparing the encoded radio only comprising number
And information table, with compare comprising text, number, man number and information table compared with, greatly reduce and retrieved in information table
The time of matched record information, improve recall precision.
The coding mode of standard license plate number is as follows: standard license plate number usually accounts for 7 characters, by Chinese character, alphabetical sum number
Word composition.Since a Chinese character accounts for 2 bytes, need that each character is first converted to corresponding numerical value, wherein municipality directly under the Central Government, each province
26 capitalization English letters are indicated with 34UL to 59UL respectively referred to as to be indicated to application 1UL to 33UL, number 0 to 9 is used respectively
60UL to 69UL is indicated, there are also several more special characters, such as " making ", " neck ", " ", " police ", " extension ", " army ", " south ",
" sea " and " sky " etc. are indicated with 70UL to 78UL respectively.By conversion, 7 characters of standard license plate number account for 7 bytes, highest
Position with 138 indicate be standard license plate number coding (can be removed in retrieval), so that standard license plate number is encoded into one by realization
A unique signless 64 integers, e.g., license plate number " capital A12345 " is by encoding corresponding 0x8a01220000000000.
The coding mode of non-standard license plate number is as follows: non-standard license plate number length is generally not 7 characters, e.g.,
"WJ123456".Non-standard license plate number is encoded into one uniquely without 64 integers of symbol with node number, time and serial number etc.,
Such as, license plate number " WJ123456 " is by encoding corresponding 0x8a01220000000000, and license plate number is stored in a manner of hash
Code and coding result, with reference to Fig. 2.
The encoded radio method of determination of fuzzy license plate number is as follows: fuzzy license plate number is true generally by preset matching list
It delimits the organizational structure code value, the corresponding relationship being stored between number and encoded radio in preset matching list can refer to following table.
The type of fuzzy license plate number | Encoded radio |
Capital A* | 0x8a01220000000000 |
For example, number to be retrieved be capital A*, the encoded radio matched be " 0x8a01220000000000 ", herein only with
Obtained matching encoded radio is illustrated in case where being one, should be subject to actual conditions.
S102 inquires record information corresponding with the retrieval encoded radio from information table, and the information table includes coding
Corresponding relationship between value and record information;
Here, information table can store in the database, also can store the calculating equipment in execution information search method
Local, the application to this not limit.
In specific implementation, it after getting encoded radio to be retrieved, can be inquired directly in information table and volume to be retrieved
The corresponding record information of the matched encoded radio of code value preferentially can also carry out Screening Treatment to information table, information after treatment
Inquiry and the matched encoded radio of encoded radio to be retrieved in table, the application not limit this.Wherein, the encoded radio to be retrieved of acquisition
It can be for the encoded radio after standard license plate number coding, or the encoded radio after being encoded to non-standard license plate number,
It can be for the encoded radio after fuzzy license plate number coding.
S103 is based on the retrieval encoded radio and institute if inquiring record information corresponding with the retrieval encoded radio
It states record information, generates search result corresponding with the number to be retrieved.
Here, record information is generally the information of vehicle, essential information and trace information including vehicle, wherein vehicle
Essential information include the information such as encoded radio, model, color, householder's information, the license plate color of vehicle, householder's information includes householder
The information such as name, gender, age, address.Wherein, the encoded radio of vehicle is generally the corresponding encoded radio of license plate number.
In specific implementation, if inquiring record corresponding with the matched encoded radio of encoded radio to be retrieved directly in information table
Information, and after inquiring record information corresponding with encoded radio to be retrieved, to encoded radio in encoded radio to be retrieved and record information
(encoded radio to be retrieved is identical with the encoded radio in record information) is decoded to obtain number to be retrieved, and generating includes to be retrieved number
The search result of code and corresponding record information.
If preferentially to information table carry out Screening Treatment, treatment process the following steps are included:
From the information table, screening is located at encoded radio and record information in preset time period;
For each encoded radio in preset time period, the corresponding record information of the encoded radio is counted, and corresponding record should
Encoded radio;
Each encoded radio and corresponding record information based on record determine record letter corresponding with the retrieval encoded radio
Breath.
Here, preset time period can be continuous several days, a week, one month, a season, continuous some months, one
Year etc., the application not limits this.
Due to including mass data in information table, in practical applications, if can be dropped by mass data filter record information
Low breakneck acceleration when screening encoded radio and record information from information table, considers that the time is remote to improve screening rate
Data utility and application value be not it is very high, close to screening time half a year data application value it is relatively high, can only sieve
The data in 6 months are selected, therefore, preset time period can be set as 6 months.
After filtering out the encoded radio in preset time period and record information, due to different in preset time period
Corresponding encoded radio is identical for record (including encoded radio and record information), and the corresponding record information phase of the encoded radio of different time
Same probability is lower, therefore, counts each encoded radio and the corresponding record letter of each encoded radio in preset time period
Breath, wherein each encoded radio may correspond at least one record information.
After counting each encoded radio and corresponding record information, from the encoded radio of statistics, inquiry and retrieval encoded radio
The corresponding record information of matched encoded radio, finally obtains search result.
Since the data volume in treated information table is still bigger, unmatch list can not be preset, not
With generally storage has a large amount of encoded radio in table, when these encoded radios in information retrieval process, will not inquired in information table
Encoded radio to record information is recorded in unmatch list, as the execution of information retrieval method can update unmatch list.
Before information table query information, further includes:
From preset unmatch list, inquiry and the matched encoded radio of the retrieval encoded radio, the unmatch list include
At least one encoded radio;
If inquire with the matched encoded radio of the retrieval encoded radio, abandon the retrieval encoded radio;
It is inquired and the inspection from information table if not inquiring with the matched encoded radio of the retrieval encoded radio, execution
The step of rope encoded radio corresponding record information.
In specific implementation, after obtaining retrieval encoded radio, inquiry is matched with retrieval encoded radio first in unmatch list
Encoded radio.If inquiring and retrieving the matched encoded radio of encoded radio, illustrate that there is no current numbers to be retrieved in information table
Relevant information, then abandon this number to be retrieved, current information search method terminates, and exists in this way, reducing such number to be retrieved
The time spent when being retrieved in information table.If not inquiring and retrieving the matched encoded radio of encoded radio, illustrate in information table
There may be the relevant informations with current number to be retrieved, execute from information table, inquire corresponding with the retrieval encoded radio
Record information the step of, if execute from information table, inquire record information corresponding with the retrieval encoded radio the step of it
Afterwards, record information corresponding with retrieval encoded radio is not retrieved still, then unmatch list is updated based on the retrieval encoded radio,
It is exactly that current retrieval encoded radio is recorded in unmatch list, when so as to subsequent execution information retrieval method, it is possible to reduce when retrieval
Between, improve recall precision.
Information retrieval method provided by the embodiments of the present application is treated retrieval number and is encoded, obtains retrieval encoded radio;From
In information table, inquiry record information corresponding with retrieval encoded radio, if inquiring record information corresponding with retrieval encoded radio,
Based on retrieval encoded radio and record information, search result corresponding with number to be retrieved is generated.By being compiled to retrieval number
Code, converts numeric type encoded radio for number to be retrieved, can greatly reduce and retrieve in the information table for including content data
The time of data improves recall precision.
The embodiment of the present application provides a kind of vehicle number retrieval device, as shown in figure 3, the device includes:
Coding module 31 is encoded for treating retrieval number, obtains retrieval encoded radio;
Enquiry module 32, for inquiring record information corresponding with the retrieval encoded radio, the information from information table
Table includes the corresponding relationship between encoded radio and record information;
Generation module 33, if being based on the retrieval for inquiring record information corresponding with the retrieval encoded radio
Encoded radio and the record information generate search result corresponding with the number to be retrieved.
Optionally, the coding module 31 is specifically used for:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded.
Optionally, the coding module 31 is also used to:
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number with
Corresponding relationship between encoded radio determines the encoded radio of the number to be retrieved.
Optionally, enquiry module 32 are also used to from the information table, screening be located at preset time period in encoded radio and
Record information;
Statistical module 34, for counting each encoded radio and corresponding record information in the preset time period;
Generation module 33, for each encoded radio and corresponding record information, determination and retrieval coding based on statistics
It is worth corresponding record information.
Optionally, enquiry module 32 is also used to:
From preset unmatch list, inquiry and the matched encoded radio of the retrieval encoded radio, the unmatch list include
At least one encoded radio;
If inquire with the matched encoded radio of the retrieval encoded radio, abandon the retrieval encoded radio;
It is inquired and the inspection from information table if not inquiring with the matched encoded radio of the retrieval encoded radio, execution
The step of rope encoded radio corresponding record information.
Corresponding to the information retrieval method in Fig. 1, the embodiment of the present application also provides a kind of computer equipments 400, such as Fig. 4
Shown, which includes memory 401, processor 402 and is stored on the memory 401 and can transport on the processor 402
Capable computer program, wherein above-mentioned processor 402 realizes above- mentioned information search method when executing above-mentioned computer program.
Specifically, above-mentioned memory 501 and processor 502 can be general memory and processor, do not do have here
Body limits, and when the computer program of 502 run memory 501 of processor storage, is able to carry out above- mentioned information search method, from
And solve the problems, such as that retrieval in the prior art is time-consuming and inefficiency, the application treat retrieval number and encode, it is examined
Rope encoded radio;From information table, inquiry record information corresponding with retrieval encoded radio, if inquiring corresponding with retrieval encoded radio
Information is recorded, then based on retrieval encoded radio and record information, generates search result corresponding with number to be retrieved.By to retrieval
Number is encoded, and converts numeric type encoded radio for number to be retrieved, and can greatly reduce is including the letter of content data
The time for retrieving data in table is ceased, recall precision is improved.
Corresponding to the information retrieval method in Fig. 1, the embodiment of the present application also provides a kind of computer readable storage medium,
It is stored with computer program on the computer readable storage medium, which executes above- mentioned information when being run by processor
The step of search method.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium
Computer program when being run, be able to carry out above- mentioned information search method, thus solve retrieval in the prior art it is time-consuming and
The problem of inefficiency, the application treat retrieval number and encode, and obtain retrieval encoded radio;From information table, inquiry and inspection
The corresponding record information of rope encoded radio, if inquire with the corresponding record information of retrieval encoded radio, based on retrieval encoded radio and
Information is recorded, search result corresponding with number to be retrieved is generated.By being encoded to retrieval number, number to be retrieved is turned
Numeric type encoded radio is turned to, the time for retrieving data in the information table for including content data can be greatly reduced, improve inspection
Rope efficiency.
In embodiment provided herein, it should be understood that disclosed system and method, it can be by others side
Formula is realized.System embodiment described above is only schematical, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, system or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in embodiment provided by the present application can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features;And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (8)
1. a kind of information retrieval method, which is characterized in that this method comprises:
It treats retrieval number to be encoded, obtains retrieval encoded radio, wherein the number to be retrieved is license plate number, the inspection
Rope encoded radio is numeric type encoded radio;
From preset unmatch list, inquiry and the matched encoded radio of the retrieval encoded radio, the unmatch list include at least
One encoded radio;
If inquire with the matched encoded radio of the retrieval encoded radio, abandon the retrieval encoded radio;
If not inquiring and the matched encoded radio of the retrieval encoded radio, from information table, inquiry and the retrieval encoded radio
Corresponding record information, the information table include the corresponding relationship between encoded radio and record information;
If not inquiring record information corresponding with the retrieval encoded radio, it is based on the retrieval encoded radio, is updated described pre-
If unmatch list;
If inquiring record information corresponding with the retrieval encoded radio, believed based on the retrieval encoded radio and the record
Breath generates search result corresponding with the number to be retrieved.
2. the method as described in claim 1, which is characterized in that the retrieval number for the treatment of is encoded, comprising:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded.
3. method according to claim 2, which is characterized in that described to judge in the number to be retrieved whether to include setting
Character, comprising:
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number and coding
Corresponding relationship between value determines the encoded radio of the number to be retrieved.
4. the method as described in claim 1, which is characterized in that further include:
From the information table, screening is located at encoded radio and record information in preset time period;
For each encoded radio in preset time period, the corresponding record information of the encoded radio is counted, and the corresponding record coding
Value;
Each encoded radio and corresponding record information based on record determine record information corresponding with the retrieval encoded radio.
5. a kind of vehicle number retrieves device, which is characterized in that the device includes:
Coding module is encoded for treating retrieval number, obtains retrieval encoded radio, wherein the number to be retrieved is vehicle
Trade mark code, the retrieval encoded radio are numeric type encoded radio;
Enquiry module, for from preset unmatch list, inquiry and the matched encoded radio of the retrieval encoded radio, it is described not
It include at least one encoded radio with table;
If inquire with the matched encoded radio of the retrieval encoded radio, abandon the retrieval encoded radio;
If not inquiring and the matched encoded radio of the retrieval encoded radio, from information table, inquiry and the retrieval encoded radio
Corresponding record information, the information table include the corresponding relationship between encoded radio and record information;
If not inquiring record information corresponding with the retrieval encoded radio, it is based on the retrieval encoded radio, is updated described pre-
If unmatch list;
Generation module, if being based on the retrieval encoded radio for inquiring record information corresponding with the retrieval encoded radio
With the record information, search result corresponding with the number to be retrieved is generated.
6. device as claimed in claim 5, which is characterized in that the coding module is specifically used for:
Judge in the number to be retrieved whether to include setting character;
If not including setting character in the number to be retrieved, the number to be retrieved is encoded.
7. device as claimed in claim 6, which is characterized in that the coding module is also used to:
If comprising setting character in the number to be retrieved, based on the number to be retrieved and preset number and coding
Corresponding relationship between value determines the encoded radio of the number to be retrieved.
8. device as claimed in claim 5, which is characterized in that further include:
Screening module, for from the information table, screening to be located at encoded radio and record information in preset time period;
Statistical module, for counting each encoded radio and corresponding record information in the preset time period;
Determining module, for based on statistics each encoded radio and corresponding record information, determination it is corresponding with the retrieval encoded radio
Record information.
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CN105608214A (en) * | 2015-12-30 | 2016-05-25 | 杭州中奥科技有限公司 | Method for searching under-surveillance license plate numbers fast |
CN107977458A (en) * | 2017-12-19 | 2018-05-01 | 深圳马可孛罗科技有限公司 | A kind of Airport information filter method and system |
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