CN102610119B - Reverse car locating method and reverse car locating system - Google Patents
Reverse car locating method and reverse car locating system Download PDFInfo
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- CN102610119B CN102610119B CN201210078763.9A CN201210078763A CN102610119B CN 102610119 B CN102610119 B CN 102610119B CN 201210078763 A CN201210078763 A CN 201210078763A CN 102610119 B CN102610119 B CN 102610119B
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Abstract
The invention provides a reverse car locating method and a reverse car locating system by adopting fuzzy search manner. The reverse car locating method comprises the steps of receiving parking space search information including key character string information; respectively calculating similarity between the key character string and each license number prestored in a memory; taking the license number corresponding to the similarity larger than a predetermined value as a searching result and calculating the number of the searched license numbers; judging whether the number of the searched license numbers is unique, if so, displaying the parking place corresponding to the license number, if not, displaying car images corresponding to the detected license numbers; and after receiving car image confirming information including car image information, displaying the parking place corresponding to the car image. The reverse car locating method and the reverse car locating system are convenient for car owners to locate cars and improve the management efficiency of a parking lot.
Description
Technical field
The present invention relates to intelligent parking lot management domain, particularly a kind of system of oppositely seeking the method for car and oppositely seeking car.
Background technology
Internet of Things is as strategic new industry, and the develop rapidly of technology of Internet of things and application has been trend of the times.Intelligent transportation is as the major domain of Internet of Things application, and intelligent parking lot can be the product that intelligent transportation is combined with intelligent building.Along with the continuous increase of city vehicle recoverable amount, people are going out to go shopping, are handling affairs often to select to drive, and for example, go the local shopping such as supermarket, market, Books Building, or go to the airport to meet someone, and go to countryside to play etc.These occasions generally all provide garage parking underground or on the ground, so that people can be stopped while driving to go out easily.
But, people also usually run into such trouble, do shopping or look at that the equal times such as exhibition, performance one are long, or the time is not long, out look for again car, because parking space is larger, just forgotten the position of parking, even sometimes, from market, doorway out, supermarket etc. and the doorway of entering different, in this case with regard to the more difficult position of finding parking.Also sometimes, the car side of obviously remembering oneself the very special car that is at a stop, is the car that object of reference is found oneself but take this special car, but can not find always, and result is that special car has driven away for a long time.In garage parking, the planless car of looking for oneself, had both wasted the time, and affect again others and drive to pass in and out, nor safety.
At present, what solve above-mentioned motorist seeks a car difficult problem, can the truck system of seeking based on license plate recognition technology be set in parking lot, still, be subject to that current technical bottleneck and car plate are stained, the practical service environment in light situation and parking lot limits, car plate accuracy of identification is generally no more than 95%.That is to say to have at least 5% car plate not identify or identification error.This has at least the car owner of 5% car plate also can face above-mentioned the arduous of car of looking for like this.
Summary of the invention
The object of the invention is to for above-mentioned problems of the prior art, a kind of method and system that adopt fuzzy algorithm oppositely to seek car are provided, it is convenient to the parking stall that car owner can find vehicle to stop rapidly, increases the efficiency of parking lot management.
For achieving the above object, the present invention by the following technical solutions:
Adopt fuzzy query oppositely to seek a method for car, comprise the steps:
Receive parking stall Query Information, parking stall Query Information comprises key-strings information;
Calculate respectively the similarity of key-strings and pre-stored each number-plate number in storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, calculate the number of the number-plate number inquiring;
Whether the number of the number-plate number that judgement inquires is unique, if, show the parking stall corresponding with this number-plate number, if not, show vehicle image corresponding to each number-plate number inquiring, receive after vehicle image confirmation, described vehicle image confirmation comprises vehicle image information, shows the parking stall corresponding with this vehicle image.
Adopt fuzzy query oppositely to seek a system for car, comprising:
Query Information receiving element, for receiving parking stall Query Information, parking stall Query Information comprises key-strings information, and the key-strings receiving is sent to similarity calculated;
Similarity calculated, for calculating respectively the similarity of key-strings and pre-stored each number-plate number at storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, the number of the number-plate number that calculating inquires, sends to judging unit by the number of the number-plate number inquiring;
Judging unit, whether unique for judging the number of the number-plate number inquiring;
Display unit, for showing corresponding parking stall when being when the result of determination of judging unit, when the result of determination of judging unit shows the vehicle image corresponding with each number-plate number inquiring while being no, receive after vehicle image confirmation, described vehicle image confirmation comprises vehicle image information, shows the parking stall corresponding with this vehicle image;
Storer, for storing number-plate number information and the vehicle image of binding with each parking stall.
According to the scheme of the invention described above, it is the method by fuzzy query, inquire about the pre-stored number-plate number that is greater than a certain preset value in storer with the similarity of key-strings, and then inquire about corresponding parking stall according to the number-plate number inquiring, if what inquire is a number-plate number, directly show corresponding parking stall, if inquire a plurality of number-plate numbers, according to vehicle image, inquire about corresponding parking stall again.According to the solution of the present invention, avoided, because identify the situation of the parking stall that the number-plate number causes car owner to inquire about to stop less than vehicle by mistake, being convenient to car owner and seeking car, increased the efficiency of parking lot management.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of oppositely seeking car method of the embodiment of the present invention;
Fig. 2 is the structural representation of the reverse vehicle searching system of the embodiment of the present invention;
Fig. 3 is the structural representation of similarity calculated in Fig. 2;
Fig. 4 is similarity of character string computing unit in Fig. 3.
Embodiment
Below in conjunction with preferred embodiment of the present invention and accompanying drawing, the present invention is described in further details, but embodiments of the present invention are not limited to this.
Embodiment 1
The method of oppositely seeking car in the present invention is based on license plate recognition technology, license plate recognition technology refers to and the vehicle image from photographing, identifies number-plate number information, in parking lot management, after parking stall and the number-plate number identifying and vehicle photo can being bound, be stored in storer, or also can realize in other way parking stall and the number-plate number, the storage of the corresponding relation of vehicle photo, other Intelligent Recognition mode etc. for example, after three's binding, car owner or other operating personnel just can inquire about parking stall according to the number-plate number, the invention reside in solution license plate recognition technology causes mistake identification and inquires about the problem less than corresponding vehicle.
Shown in Figure 1, be the schematic flow sheet of the method for oppositely seeking car of the embodiment of the present invention, the method for oppositely seeking car in this embodiment comprises the steps:
Step S101: receive parking stall Query Information, parking stall Query Information comprises key-strings information, enter step S102, wherein, key-strings information is generally alphabet information or the partial character information of the number-plate number of car owner or other operating personnel vehicle to be checked, as car owner's the number-plate number is: Guangdong A-12345, key-strings information can be Guangdong A-12345, also can be 12345, also can other Chinese characters, letter, the combination of numeral, as Guangdong A-123 or A-12345 etc., but in view of a garage or parking place, stopping is generally the vehicle in a city, even if or have a vehicle in other cities, the number of the identical number-plate number of five digit number is also limited below, and, in actual mechanical process, generally on touch-screen, to input parking stall Query Information, it is easy that input numeral is inputted Chinese character, therefore, for the ease of inputting license plate number, car owner or other operating personnel five numerals in can an inputting license plate number.If but the car plate that car owner need to inquire about in a certain parking lot in Guangzhou is Pekinese, also can select direct input " capital ", the parking stall number inquiring also can be less, the input of concrete parking stall Query Information can be selected different modes because of situation, but five numerals of generally take in inputting license plate number are as good;
Step S102: the similarity of calculating respectively key-strings and pre-stored each number-plate number in storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, the number of the number-plate number that calculating inquires, enter step S103, the car plate accuracy of identification causing in view of some reasons is generally no more than 95%, adopt the mode of fuzzy query to inquire about corresponding car plate, the number-plate number inquiring so also incomplete and key-strings matches, or the number-plate number inquiring also may not only comprise the number-plate number of car owner's vehicle, also comprise other qualified car plates, although may increase like this number of the number-plate number inquiring, but but can reject the number-plate number that those are not car owner according to certain mode, also than adopting accurate searching but not inquire the own number-plate number and at a loss what to do good, its concrete operations are that each number-plate number and the key-strings in storer, stored are compared, draw corresponding similarity, according to the size of similarity, determine that whether the corresponding number-plate number is eligible again, by selecting suitable preset value, just can obtain the number-plate number with key-strings comparison match, for example, in step S101, the key-strings of car owner's input is 12345, by 12345 one by one with storer in each number-plate number compare, obtain 12345 with the similarity of each number-plate number, by condition, control, suppose that car owner's the number-plate number is not identified by mistake, just can inquire car owner's Guangdong A-12345, if now, in corresponding stored device, also comprise Hunan A-12345, Guangdong B-12345, or Guangdong A-I2345, Guangdong B-1Z345, the number-plate numbers such as Guangdong B-1ZB45, these number-plate numbers also may be exported as Query Result, but also can pass through the selection of similarity preset value size, the number of the number-plate number that control inquires, as larger in what preset value was arranged, Guangdong B-1ZB45 just may not be queried to so, because 2, 3 two of characters are all identified and make mistakes, this possibility is little, as preset value arrange less, Guangdong B-1ZB45 just may be queried to, Guangdong A-IZB45 even, Guangdong A-IZ845 is likely identified, preset value varies in size, the number-plate number inquiring also may be different,
Step S103: whether the number of the number-plate number that judgement inquires is unique, if, show the parking stall corresponding with this number-plate number, if not, show vehicle image corresponding to each number-plate number inquiring, receive after vehicle image confirmation, described vehicle image confirmation comprises vehicle image information, show the parking stall corresponding with this vehicle image, for example, in step S102, only found Guangdong A-12345, or only found Guangdong A-I2345, according to the binding relationship of the binding relationship of Guangdong A-12345 and parking stall or Guangdong A-I2345 and parking stall, just can directly show corresponding parking stall, if and inquired Guangdong A-12B45 in step S102, Hunan A-12345, tri-number-plate numbers of Guangdong B-I2345, show this three vehicle images that the number-plate number is corresponding, which car owner can be easy to tell is car owner's vehicle image corresponding to car, car owner inputs vehicle image confirmation, in touch screen operation, can be directly by clicking corresponding vehicle image, complete the confirmation process of vehicle image, receive after this vehicle image confirmation, according to vehicle image, show corresponding parking stall with the corresponding relation of parking stall.
According to the scheme of the invention described above, it is the method by fuzzy query, first receive parking stall Query Information, parking stall Query Information comprises key-strings information, according to be greater than the number-plate number of a certain preset value in key-strings information inquiry storer with the similarity of key character similarity string, and then inquire about corresponding parking stall according to the number-plate number inquiring, if inquire a number-plate number, directly show corresponding parking stall, if inquire a plurality of car plates, according to vehicle image, inquire about corresponding parking stall again.According to the solution of the present invention, avoided, because identify the situation of the parking stall that the number-plate number causes car owner to inquire about to stop less than vehicle by mistake, being convenient to car owner and seeking car, increased the efficiency of parking lot management.
Owing to being subject to, current technical bottleneck and car plate are stained, the practical service environment restriction in light situation and parking lot, car plate accuracy of identification is generally no more than 95%, because these many reasons can cause occurring mistake when car plate is identified, as Guangdong A-12345 is identified as to Guangdong A-I2345, Guangdong A-1ZB45, many situations such as Guangdong A-12845, therefore, by the mode of fuzzy query, namely do not adopt accurately and search, but each car plate of the key-strings receiving and storage is carried out to similarity comparison, as the similarity relatively obtaining meets certain value, can be using corresponding car plate as Query Result with regard to this.The similarity of calculating respectively key-strings and pre-stored each number-plate number in storer in above-mentioned steps S102 specifically can comprise the steps:
Step S1021: the similarity of calculating respectively each character and corresponding character in the number-plate number in key-strings, as what take car owner or other operating personnel input is that five numerals in the number-plate number are example, first these five numerals are split into single numeral, then first digit is compared to the similarity that draws the two with the character of corresponding first digit in the number-plate number in storer, again second digit is compared to the similarity that draws the two with the character of corresponding second digit in the number-plate number in storer, the like.
Step S1022: the similarity according to each character in key-strings with corresponding character in the number-plate number, calculate the similarity of key-strings and the number-plate number, wherein, the similarity of calculating key-strings and the number-plate number can adopt mode of the prior art, as the computing method of text similarity, at this, do not repeat one by one, only provide wherein a kind of mode, specifically comprise the steps:
Step S10221: each character in key character is added to summation with the similarity of corresponding character in the number-plate number and obtains similarity and value;
Step S10222: similarity and value are obtained to the similarity of key-strings and the number-plate number divided by the number of character in key-strings.
The above-mentioned car method of oppositely seeking, wherein, key-strings information comprises more than one in Chinese character, letter, numeral, both can be the full detail of car owner's number-plate number, can be partial information again, but be not limited only to the numerical information (12345) mentioned in example above, can be also the combination of two kinds in Chinese character, letter, numeral, also can be to only include continuous part numeral (as 1234), but preferably embodiment be to select whole numerals as key-strings.
In addition, because some car owner is not high to the susceptibility in orientation, according to number-plate number information inquiry, arrive behind corresponding parking stall, in the situation that parking lot scope is larger, still be not easy to find corresponding parking stall, therefore, behind the parking stall inquiring with vehicle place, can also go out to arrive the electronic chart of this parking stall by query analysis, and the electronic chart that arrives this parking stall is shown.Thereby, the parking stall that car owner can find own vehicle to park according to the indication of electronic chart easily.
Embodiment 2
According to the employing fuzzy algorithm of the invention described above, oppositely seek the method for car, the present invention also provides a kind of system that adopts fuzzy algorithm oppositely to seek car, below with regard to employing fuzzy algorithm of the present invention, oppositely seek the system of car concrete example be elaborated.Employing fuzzy algorithm of the present invention has been shown in Fig. 2 and has oppositely sought the structural representation of an example of the system of car, it comprises storer 201, Query Information receiving element 202, similarity calculated 203, judging unit 204, display unit 205, wherein,
Query Information receiving element 202, be used for receiving parking stall Query Information, parking stall Query Information comprises key-strings information, and parking stall Query Information is sent to similarity calculated 203, wherein, key-strings information is generally alphabet information or the partial character information of the number-plate number of car owner or other operating personnel vehicle to be checked, as car owner's the number-plate number is: Guangdong A-12345, key-strings information can be Guangdong A-12345, also can be 12345, also can other Chinese characters, letter, the combination of numeral, as Guangdong A-123 or A-12345 etc., but in view of a garage or parking place, stopping is generally the vehicle in a city, even if or have a vehicle in other cities, the number of the identical number-plate number of five digit number is also limited below, and, in actual mechanical process, generally on touch-screen, to input parking stall Query Information, it is easy that input numeral is inputted Chinese character, therefore, for the ease of inputting license plate number, car owner or other operating personnel five numerals in can an inputting license plate number.If but the car plate that car owner need to inquire about in a certain parking lot in Guangzhou is Pekinese, also can select direct input " capital ", the parking stall number inquiring also can be less, the input of concrete parking stall Query Information can be selected different modes because of situation, but five numerals of generally take in inputting license plate number are as good;
Similarity calculated 203, for calculating respectively the similarity of key-strings and pre-stored each number-plate number at storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, the number of the number-plate number that calculating inquires, the number of the number-plate number inquiring is sent to judging unit 204, its concrete operations are that each number-plate number and the key-strings in storer, stored are compared, draw corresponding similarity, according to the size of similarity, determine that whether the corresponding number-plate number is eligible again, by selecting suitable preset value, just can obtain the number-plate number with key-strings comparison match, for example, in step S101, the key-strings of car owner's input is 12345, by condition, control, suppose that car owner's the number-plate number is not identified by mistake, just can inquire car owner's Guangdong A-12345, if now, in corresponding stored device, also comprise Hunan A-12345, Guangdong B-12345, or Guangdong A-I2345, Guangdong B-1Z345, the number-plate numbers such as Guangdong B-1ZB45, these number-plate numbers also may be exported as Query Result, but also can pass through the selection of similarity preset value size, the number of the number-plate number that control inquires, as larger in what preset value was arranged, Guangdong B-1ZB45 just may not be queried to so, because 2, 3 two of characters are all identified and make mistakes, this possibility is little, as preset value arrange less, Guangdong B-1ZB45 just may be queried to, Guangdong A-IZB45 even, Guangdong A-IZ845 is likely identified, preset value varies in size, the number-plate number inquiring also may be different,
Storer 206, for storing number-plate number information and the vehicle image information of binding with each parking stall.
Wherein, similarity calculated 203 specifically comprises character similarity calculated 301, similarity of character string computing unit 302, wherein,
Character similarity calculated 301, for calculating respectively the similarity of each key character of key-strings and character corresponding in the number-plate number, as what take car owner or other operating personnel input is that five numerals in the number-plate number are example, first these five numerals are split into single numeral, then first digit is compared to the similarity that draws the two with the character of corresponding first digit in a certain number-plate number in storer, again second digit is compared to the similarity that draws the two with the character of corresponding second digit in this number-plate number, the like, obtain the similarity of five numerals and corresponding character in this number-plate number, obtain in this way the similarity of each key character in key-strings and character corresponding in other number-plate numbers,
Similarity of character string computing unit 302, for according to the similarity of each key character character corresponding with the number-plate number.
In a preferred real-time mode, similarity of character string computing unit 302 can comprise:
With value computing unit 401, for being added to summation with the similarity of the corresponding character of the number-plate number, each key character obtains similarity and value;
Mean value computation unit 402, obtains the similarity of key-strings and the number-plate number by similarity and value divided by the number of character in key-strings.
Above-mentioned reverse vehicle searching system, wherein, key-strings information comprises more than one in Chinese character, letter, numeral, both can be the full detail of car owner's number-plate number, it can be again partial information, can be whole numerals, also can be the combination of two kinds in Chinese character, letter, numeral, can be also to only include continuous part numeral etc.
In a preferred embodiment, reverse vehicle searching system of the present invention can also comprise electronic map query unit on the basis of the above, for determining that parking stall post analysis goes out to arrive the electronic chart of this parking stall, and electronic map information is sent to display unit 205, thereby, the parking stall that car owner can find own vehicle to park according to the indication of electronic chart easily, therefore, respective display unit 205 is also for showing electronic map information, and respective memory 201 is also for depositing the electronic map information that arrives this parking stall.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present invention.
Claims (10)
1. oppositely seek a method for car, it is characterized in that, comprise the steps:
Receive parking stall Query Information, parking stall Query Information comprises key-strings information;
Calculate respectively the similarity of key-strings and pre-stored each number-plate number in storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, calculate the number of the number-plate number inquiring;
Whether the number of the number-plate number that judgement inquires is unique, if, show the parking stall corresponding with this number-plate number, if not, show vehicle image corresponding to each number-plate number inquiring, receive after vehicle image confirmation, described vehicle image confirmation comprises vehicle image information, shows the parking stall corresponding with this vehicle image.
2. method of oppositely seeking car according to claim 1, is characterized in that, the described similarity of calculating respectively key-strings and pre-stored each number-plate number in storer comprises the steps:
Calculate respectively the similarity of each character and corresponding character in the number-plate number in key-strings;
Similarity according to each character with corresponding character in the number-plate number, the similarity of calculating key-strings and the number-plate number.
3. method of oppositely seeking car according to claim 2, is characterized in that, the similarity of described calculating key-strings and the number-plate number comprises the steps:
Each character in key-strings is added to summation with the similarity of corresponding character in the number-plate number and obtains similarity and value;
Similarity and value are obtained to the similarity of key-strings and the number-plate number divided by the number of character in key-strings.
4. according to the method for oppositely seeking car one of claims 1 to 3 Suo Shu, it is characterized in that, described key character bit string comprises more than one in Chinese character, letter, numeral.
5. method of oppositely seeking car according to claim 1, is characterized in that, also comprises step: after determining parking stall, query analysis goes out arrive the electronic chart of this parking stall and show.
6. oppositely seek a system for car, it is characterized in that, comprising:
Query Information receiving element, for receiving parking stall Query Information, parking stall Query Information comprises key-strings information, and the key-strings receiving is sent to similarity calculated;
Similarity calculated, for calculating respectively the similarity of key-strings and pre-stored each number-plate number at storer, similarity is greater than to the number-plate number that preset value is corresponding as Query Result, the number of the number-plate number that calculating inquires, sends to judging unit by the number of the number-plate number inquiring;
Judging unit, whether unique for judging the number of the number-plate number inquiring;
Display unit, for showing corresponding parking stall when being when the result of determination of judging unit, when the result of determination of judging unit shows the vehicle image corresponding with each number-plate number inquiring while being no, receive after vehicle image confirmation, described vehicle image confirmation comprises vehicle image information, shows the parking stall corresponding with this vehicle image;
Storer, for storing number-plate number information and the vehicle image of binding with each parking stall.
7. system of oppositely seeking car according to claim 6, is characterized in that, described similarity calculated comprises:
Character similarity calculated, for calculating respectively the similarity of each character of key-strings and character corresponding in the number-plate number;
Similarity of character string computing unit, for the similarity with the corresponding character of the number-plate number according to each character, calculates the similarity of key-strings and the number-plate number.
8. system of oppositely seeking car according to claim 6, is characterized in that, described similarity of character string computing unit comprises:
With value computing unit, for being added to summation with the similarity of corresponding character in the number-plate number, each character of key character obtains similarity and value;
Mean value computation unit, obtains the similarity of key-strings and the number-plate number by similarity and value divided by the number of character in key-strings.
9. according to the system of oppositely seeking car one of claim 6 to 8 Suo Shu, it is characterized in that, described key-strings information comprises more than one in Chinese character, letter, numeral.
10. system of oppositely seeking car according to claim 6, is characterized in that:
Also comprise electronic map query unit, for determining that parking stall post analysis goes out to arrive the electronic map information of this parking stall, and electronic map information is sent to display unit;
Described display unit is also for showing electronic map information.
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| CN201629053U (en) * | 2010-07-14 | 2010-11-10 | 厦门科拓通讯技术有限公司 | Intelligent carport integrated information system for parking lot |
| CN201838193U (en) * | 2010-09-29 | 2011-05-18 | 北京紫光百会科技有限公司 | Reverse vehicle searching system |
-
2012
- 2012-03-22 CN CN201210078763.9A patent/CN102610119B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1694130A (en) * | 2005-03-24 | 2005-11-09 | 上海大学 | Identification method of mobile number plate based on three-channel parallel artificial nerve network |
| CN101398894A (en) * | 2008-06-17 | 2009-04-01 | 浙江师范大学 | Automobile license plate automatic recognition method and implementing device thereof |
| CN101882219A (en) * | 2009-05-08 | 2010-11-10 | 财团法人工业技术研究院 | Image identification and output method and system thereof |
| CN201629053U (en) * | 2010-07-14 | 2010-11-10 | 厦门科拓通讯技术有限公司 | Intelligent carport integrated information system for parking lot |
| CN201838193U (en) * | 2010-09-29 | 2011-05-18 | 北京紫光百会科技有限公司 | Reverse vehicle searching system |
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| CN102610119A (en) | 2012-07-25 |
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