CN111325122A - License plate correction method, ETC antenna device and computer-readable storage medium - Google Patents

License plate correction method, ETC antenna device and computer-readable storage medium Download PDF

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Publication number
CN111325122A
CN111325122A CN202010084475.9A CN202010084475A CN111325122A CN 111325122 A CN111325122 A CN 111325122A CN 202010084475 A CN202010084475 A CN 202010084475A CN 111325122 A CN111325122 A CN 111325122A
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license plate
plate information
vehicle
information
correction method
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CN111325122B (en
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王林祥
赵皎平
潘永红
周小毛
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Xian Irain IoT Technology Service Co Ltd
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Xian Irain IoT Technology Service Co Ltd
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Priority to CN202410228699.0A priority Critical patent/CN118072256A/en
Priority to CN202410228701.4A priority patent/CN118097577A/en
Priority to CN202010084475.9A priority patent/CN111325122B/en
Priority to CN202410228732.XA priority patent/CN118115956A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/50Context or environment of the image
    • G06V20/52Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • G06V20/54Surveillance or monitoring of activities, e.g. for recognising suspicious objects of traffic, e.g. cars on the road, trains or boats
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition
    • G06F18/20Analysing
    • G06F18/22Matching criteria, e.g. proximity measures
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • G07B15/063Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00Scenes; Scene-specific elements
    • G06V20/60Type of objects
    • G06V20/62Text, e.g. of license plates, overlay texts or captions on TV images
    • G06V20/625License plates

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  • General Physics & Mathematics (AREA)
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  • Data Mining & Analysis (AREA)
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  • Life Sciences & Earth Sciences (AREA)
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  • Evolutionary Computation (AREA)
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  • Computer Vision & Pattern Recognition (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Traffic Control Systems (AREA)

Abstract

The invention discloses a license plate correction method, which comprises the following steps: identifying according to the image acquired by the camera device to obtain first license plate information; reading second license plate information of the ETC vehicle-mounted terminal; and correcting the first license plate information according to the second license plate information. The invention also provides the ETC antenna equipment and a computer readable storage medium. According to the license plate correction method, whether the vehicle is detected to enter the field or the vehicle is detected to leave the field, the first license plate information obtained by image recognition can be corrected by reading the second license plate information of the ETC vehicle-mounted terminal, and the situation that the vehicle cannot enter the field normally or the vehicle cannot leave the field normally due to the fact that the first license plate information is recognized wrongly is avoided; in addition, the charging operation can be carried out according to the corrected first license plate information, the vehicle cost is automatically deducted from the account number bound by the ETC vehicle-mounted terminal according to the charging result, and the accurate charging and the automatic payment of the cost of the vehicle corresponding to the first license plate information from the entrance to the exit are realized.

Description

License plate correction method, ETC antenna device and computer-readable storage medium
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to a license plate correction method, an ETC antenna device, and a computer-readable storage medium.
Background
At present, no matter the vehicle charging method is applied to parking lot charging or high-speed ETC lane vehicle charging, the vehicle information can be obtained by collecting vehicle images through a camera device, such as license plate numbers, vehicle colors and the like, and then charging is carried out on the vehicles according to the identified vehicle information.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a license plate correction method, ETC antenna equipment and a computer readable storage medium, and aims to solve the problem that the identified license plate information has errors and cannot be charged through the license plate information due to the influences of the installation position, the shooting angle, the visibility during image acquisition and the like of a camera device.
In order to achieve the above object, the present invention provides a license plate correction method, comprising the steps of:
identifying according to the image acquired by the camera device to obtain first license plate information;
reading second license plate information of the ETC vehicle-mounted terminal;
and correcting the first license plate information according to the second license plate information.
Optionally, after the step of acquiring the image by the camera device to identify and obtain the first license plate information, the license plate correction method further includes:
comparing the first license plate information with third license plate information of the vehicle entering the field, wherein when the vehicle is detected to leave the field, the step of acquiring image recognition according to the camera device to obtain the first license plate information is executed;
and when the third license plate information is not matched with the first license plate information, executing the step of reading the second license plate information of the ETC vehicle-mounted terminal.
Optionally, after the step of correcting the first license plate information according to the second license plate information, the license plate correction method further includes:
and carrying out charging operation according to the corrected first license plate information, and automatically deducting vehicle cost from an account number bound by the ETC vehicle-mounted terminal according to a charging result obtained by the charging operation.
Optionally, after the step of reading the second license plate information of the ETC in-vehicle terminal, the license plate correction method further includes:
comparing the first license plate information with the second license plate information;
and when the second license plate information does not match the first license plate information, executing the step of correcting the first license plate information according to the second license plate information.
Optionally, when it is detected that the vehicle enters the field, the step of obtaining the first license plate information according to the image collected by the camera device is executed.
Optionally, after the step of acquiring the image by the camera device to identify and obtain the first license plate information, the license plate correction method further includes:
comparing the license plate number in the first license plate information with a preset naming rule;
when the license plate number in the first license plate information meets a preset naming rule, a step of comparing the first license plate information with third license plate information of the entering field is executed; and/or the presence of a gas in the gas,
and when the license plate number in the first license plate information does not meet a preset naming rule, executing a step of reading second license plate information of the ETC vehicle-mounted terminal.
Optionally, the step of correcting the first license plate information according to the second license plate information includes:
when the number of characters of the second license plate information is consistent with that of the first license plate information, determining a correction position where a different character in the second license plate information is located from that in the first license plate information;
and correcting the character to be corrected at the correction position in the first license plate information by adopting the target character at the correction position in the second license plate information.
Optionally, the step of correcting the first license plate information according to the second license plate information includes:
when the number of the characters of the second license plate information is not consistent with the number of the characters of the first license plate information, adding correction characters to the license plate number of the first license plate information according to the number of the characters of the license plate number of the second license plate information;
when the number of characters of the second license plate information is consistent with that of the first license plate information, determining a correction position where a different character in the second license plate information is located from that in the first license plate information;
and correcting the character to be corrected at the correction position in the first license plate information by adopting the target character at the correction position in the second license plate information.
In order to achieve the above object, the present invention further provides an ETC antenna device, which includes a memory, a processor, and a license plate correction program stored in the memory and executable on the processor, wherein the license plate correction program, when executed by the processor, implements the steps of the license plate correction method as described above.
In order to achieve the above object, the present invention further provides a computer-readable storage medium, which stores a license plate correction program, and the license plate correction program implements the steps of the license plate correction method as described above when executed by the processor.
According to the license plate correction method provided by the invention, whether the vehicle entering or the vehicle leaving is detected, the first license plate information obtained by image recognition can be corrected by reading the second license plate information of the ETC vehicle-mounted terminal, so that the condition that the vehicle cannot enter the vehicle normally or the vehicle cannot leave the vehicle normally due to the wrong recognition of the first license plate information is avoided; in addition, the charging operation can be carried out according to the corrected first license plate information, the vehicle cost is automatically deducted from the account number bound by the ETC vehicle-mounted terminal according to the charging result, and the accurate charging and the automatic payment of the cost of the vehicle corresponding to the first license plate information from the entrance to the exit are realized.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a license plate correction method according to a first embodiment of the present invention;
FIG. 3 is a schematic view illustrating a vehicle leaving process according to a second embodiment of the license plate correcting method of the present invention;
FIG. 4 is a schematic view illustrating a vehicle entrance flow of a license plate correction method according to a third embodiment of the present invention;
fig. 5 is a flowchart illustrating a license plate correction method according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention is the ETC antenna equipment, and the terminal can also be a control device of the ETC antenna equipment. The ETC antenna equipment can comprise a camera device such as a license plate recognition camera, the integrated camera device of the ETC antenna equipment is used, when a vehicle needs to be charged through the ETC antenna equipment, the camera device is used for collecting vehicle image recognizable license plate information, charging is carried out according to the recognized license plate information, and when the vehicle passes through, the ETC antenna equipment is triggered to work, so that the ETC antenna equipment is in a working state, and specific limitation is not carried out.
As shown in fig. 1, the terminal further includes: memory 101, processor 102, and communication module 103. Those skilled in the art will appreciate that the terminal configuration shown in fig. 1 is not intended to be limiting, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. The memory 101 stores a central control system and a license plate correction program, the processor 102 is a control center of the terminal, and the processor 102 executes the license plate correction program stored in the memory 101 to implement the steps of each embodiment of the license plate correction method of the present invention. The communication module 103 establishes data communication with the vehicle control system through a network protocol so as to acquire a charging result of the vehicle from the vehicle control system according to license plate information of the vehicle, and meanwhile, the communication module 103 establishes data communication with an ETC vehicle-mounted terminal on the vehicle through the network protocol so as to read the license plate information on the ETC vehicle-mounted terminal and send a fee deduction instruction to the ETC vehicle-mounted terminal on the vehicle according to the acquired charging result of the vehicle so as to allow the ETC vehicle-mounted terminal on the vehicle to deduct fees according to the received fee deduction instruction.
Based on the terminal structure of the hardware operating environment, the embodiments of the license plate correction method are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a license plate correction method according to a first embodiment of the present invention. In this embodiment, the license plate correction method includes the steps of:
step S10, identifying according to the image collected by the camera device to obtain first license plate information;
the first license plate information includes, but is not limited to, a license plate number and a vehicle appearance characteristic. The license plate number can be used as a unique identifier of the vehicle, and the appearance characteristics of the vehicle include, but are not limited to, the vehicle type and the vehicle color. In addition, the imaging device may be mounted in advance in a good imaging field of view, and the vehicle may be imaged and captured by using the imaging device. The first vehicle information in the identification image can be directly obtained by the direct identification of the own license plate identification calculation of the camera device; the image can also be sent to a vehicle control system, and the first license plate information in the image is recognized through license plate recognition software installed in the vehicle control system; the image may also be sent to a server, and the image is recognized by a license plate recognition module/software installed on the server to obtain the first license plate information. It can be understood that, in order to improve the accuracy of identifying the first license plate information in the image, the camera device may be one or a plurality of, and can shoot a plurality of images of the vehicle collection multi-angle at multiple angles, and then obtain the first vehicle information by comprehensively analyzing, identifying and identifying the plurality of images.
Step S20, reading second license plate information of the ETC vehicle-mounted terminal;
and step S30, correcting the first license plate information according to the second license plate information.
The second license plate information includes, but is not limited to, license plate number and vehicle appearance characteristics. The license plate number can be used as a unique identifier of the vehicle, and the appearance characteristics of the vehicle include, but are not limited to, the vehicle type and the vehicle color. The first license plate information is corrected according to the second license plate information, the license plate number of the first license plate information can be corrected according to the license plate number in the second license plate information, and it can be understood that when the character number of the license plate number of the second license plate information is consistent with the character number of the license plate number of the first license plate information, the correction position where different characters of the license plate number of the second license plate information and the license plate number of the first license plate information are located can be determined, and then the target character of the license plate number correction position in the second license plate information is adopted to correct the character to be corrected at the license plate number correction position in the first license plate information; it can be understood that when the number of characters of the license plate number of the second license plate information is not consistent with the number of characters of the license plate number of the first license plate information, correction characters can be added to the license plate number of the first license plate information according to the number of characters of the license plate number of the second license plate information, when the number of characters of the license plate number of the second license plate information is consistent with the number of characters of the license plate number of the first license plate information, a correction position where different characters of the license plate number of the second license plate information and different characters of the license plate number of the first license plate information are located can be determined, and then a target character of the correction position of the license plate number in the second license plate information is adopted to correct a character to be corrected of the correction position of the license plate number in the first license plate information, wherein correction characters can be added to the license plate number of the first license plate information according to the number of characters of the license plate number of the second license plate information, correction characters can be inserted into any position of the characters corresponding to the license plate, alternatively, the correction character may be inserted before the first character of the license plate number corresponding character of the first license plate information, or inserted after the last character of the license plate number corresponding character of the first license plate information. It is understood that the correction character may be one or more.
And after the step S30, performing charging operation according to the corrected first license plate information, and automatically deducting the vehicle cost from the account number bound by the ETC vehicle-mounted terminal according to the charging result obtained by the charging operation.
It will be appreciated that the first license plate information includes, but is not limited to, license plate number and vehicle appearance characteristics. The license plate number can be used as a unique identifier of the vehicle, and the appearance characteristics of the vehicle include, but are not limited to, the vehicle type and the vehicle color. And performing the charging operation according to the corrected first license plate information substantially according to the license plate number in the corrected first license plate information. In the actual application process, when a vehicle enters the field, the charging operation can be started on the vehicle corresponding to the first license plate information according to the entrance time and the corrected first license plate information; or when the vehicle leaves, after the first license plate information of the leaving is matched with the vehicle information of the entering according to the leaving time and the corrected first vehicle information, the vehicle corresponding to the first vehicle information is charged according to the entering time and the leaving time of the corrected first license plate information under the preset calculation rule, and the vehicle cost is automatically deducted from the account number bound with the ETC vehicle-mounted terminal according to the charging result obtained by the charging operation. The specific steps of automatically deducting the vehicle cost from the account number bound by the ETC vehicle-mounted terminal according to the charging result obtained by the charging operation comprise: obtaining a charging result according to the charging operation; and sending a fee deduction instruction to the ETC vehicle-mounted terminal according to the charging result, and further automatically deducting the vehicle fee from the account number bound by the ETC vehicle-mounted terminal. It can be understood that the ETC vehicle-mounted terminal is bound with the account in advance, and after the charging result is obtained, the account bound with the ETC vehicle-mounted terminal automatically deducts the fee from the vehicle by sending the fee deduction instruction to the ETC terminal.
In the technical scheme disclosed by the embodiment, no matter whether the vehicle entering or the vehicle leaving is detected, the first license plate information obtained by image recognition can be corrected by reading the second license plate information of the ETC vehicle-mounted terminal, so that the condition that the vehicle cannot enter the vehicle normally or the vehicle cannot leave the vehicle normally due to the fact that the first license plate information is recognized wrongly is avoided; meanwhile, the charging operation can be carried out according to the corrected first license plate information, the vehicle cost is automatically deducted from the account number bound by the ETC vehicle-mounted terminal according to the charging result obtained by the charging operation, and the accurate charging and automatic payment of the cost of the vehicle corresponding to the first license plate information from the entrance to the exit are realized.
Referring to fig. 3, fig. 3 is a schematic view illustrating a vehicle leaving process according to a second embodiment of the license plate correction method of the present invention. In this embodiment, after step S10, the license plate correction method further includes:
step S40, comparing the first license plate information with third license plate information of entering;
and step S50, when the third license plate information is not matched with the first license plate information, executing step S20.
The third license plate information license plate number and the appearance characteristic of the vehicle. The license plate number can be used as a unique identifier of the vehicle, and the appearance characteristics of the vehicle include, but are not limited to, the vehicle type and the vehicle color. It should be noted that the third license plate information that enters the vehicle can be directly obtained by recognition through a camera device, such as a vehicle recognition camera device; the license plate information on an ETC vehicle-mounted terminal of the vehicle can be read through the ETC antenna equipment to obtain the license plate information; the license plate information can also be acquired indirectly by reading the license plate information of the ETC vehicle-mounted terminal after the image is collected by the camera device to identify the license plate information, and the specific implementation of the step is not limited in the embodiment. When the vehicle is detected to be out of the field, step S10 is executed, that is, the first license plate information is obtained by recognizing the image captured by the camera device.
In the practical application process, when the vehicle is detected to be out of the field, whether the first license plate information is accurately identified or not can be determined by comparing the first license plate information with the third license plate information of the vehicle to be in the field, and whether the first license plate information obtained by vehicle out-of-field identification is matched with the third license plate information of the vehicle to be in the field or not can be determined to realize the charging operation. It can be understood that, when the license plate number is used as the unique identifier of the vehicle, the license plate number in the first vehicle information and the license plate number in the third vehicle information can be compared by comparing the license plate number in the first vehicle information with the license plate number in the third vehicle information, when the license plate number in the first vehicle information is not matched with the license plate number in the third vehicle information, that is, the first vehicle information is not matched with the third vehicle information, the first vehicle information is identified as a wrong vehicle information, at this time, the license plate information of the currently passing vehicle is acquired by executing reading of the second vehicle information on the ETC vehicle-mounted terminal, the first vehicle information identified as a wrong vehicle information is corrected according to the second vehicle information, so that the corrected first vehicle information is acquired, and subsequent operations are executed according to the corrected first vehicle information. The third license plate information corrects the first license plate information with the wrong identification, and can correct the license plate number in the first license plate information; the license plate number and the vehicle appearance feature in the first license plate information may be corrected at the same time, which is not limited. It can be understood that when the license plate number in the first license plate information is matched with the license plate number of the third license plate information, that is, the first license plate information is matched with the third license plate information, it is indicated that the first license plate information is correctly identified, the charging operation can be directly performed according to the first license plate information obtained through identification, and the vehicle cost is automatically deducted from the account number bound by the ETC vehicle-mounted terminal according to the charging result.
Optionally, in step S40, before comparing the first license plate information with the third license plate information of the vehicle entering the field, it may be determined whether the license plate number in the first license plate information matches the preset naming rule; executing step S40 when the license plate number in the first license plate information meets the preset naming rule; and when the license plate number in the first license plate information does not meet the preset naming rule, executing the step S20, namely, reading the second license plate information on the ETC vehicle-mounted terminal. The preset naming rule includes but is not limited to the character length of the license plate number and the type corresponding to each character, wherein the character length of the license plate number is 7 characters, and the type corresponding to each character of the license plate number includes an alphabetic type, a numeric type and a character type. Judging whether the license plate number in the first license plate information is matched with a preset naming rule or not, determining whether the identified license plate number meets the license plate number naming specification or not in advance, and when the license plate number does not meet the preset naming rule, namely the license plate number does not meet the naming specification, directly determining the license plate number identification error of the first license plate information, and executing the step of reading the second license plate information on the ETC vehicle-mounted terminal; when the license plate number meets the preset naming rule, namely the license plate number meets the naming specification, the step of comparing the first license plate information with the third license plate information entered into the field can be executed to determine whether the charging operation can be realized or not, so that the corresponding operation can be executed according to the comparison result by determining whether the license plate number meets the comparing result of the naming specification of the license plate number in advance, and the realization is simpler.
In the technical scheme disclosed in this embodiment, the method is often applied to a scene when a vehicle leaves a field, the first license plate information acquired by comparing the image collected by the camera device with the third license plate information of the vehicle entering the field is used for determining whether the first license plate information is accurately identified, when the third license plate information is not matched with the first license plate information, namely the first license plate information is identified wrongly, the first license plate information is corrected by reading the second license plate information of the ETC vehicle-mounted terminal so as to correct the first license plate information identified wrongly, and then subsequent operations are executed through the corrected first license plate information, so that the problem that the work cannot be normally operated due to the identification mistake of the first license plate information is effectively avoided.
A third embodiment of the license plate correction method according to the present invention is provided based on any of the above embodiments, please refer to fig. 4, and fig. 4 is a schematic view of a vehicle entrance flow of the third embodiment of the license plate correction method according to the present invention. In this embodiment, after step S20, the license plate correction method further includes:
step S70, comparing the first license plate information with the second license plate information;
and a step S80 of executing the step S30 when the first license plate information and the second license plate information do not match.
When the vehicle entrance is detected, step S10 is executed, that is, the first license plate information is obtained by image recognition performed by the camera. In the practical application process, when a vehicle is detected to enter the field, whether the first license plate information is accurately identified or not can be determined by comparing the first license plate information with the second license plate information, it can be understood that when the license plate information is used as a unique identifier of the vehicle, the first license plate information and the second license plate information can be compared by comparing the license plate number in the first license plate information with the license plate number in the second license plate information, when the license plate number in the first license plate information is not matched with the license plate number in the second license plate information, namely the first license plate information is not matched with the second license plate information, the identification error of the first license plate information is indicated, at the moment, the first license plate information with the identification error can be corrected through the second license plate information to obtain the corrected first license plate information, and then subsequent operation is executed according to the corrected first license plate information, wherein the second license plate information corrects the first license plate information with the identification error, the license plate number in the first license plate information can be corrected; the license plate number and the vehicle appearance feature in the first license plate information may be corrected at the same time, which is not limited. It can be understood that when the license plate number in the first license plate information is matched with the license plate number of the second license plate information, that is, the first license plate information is matched with the second license plate information, it is indicated that the first license plate information is correctly identified, and subsequent operations can be directly performed according to the identified first license plate information, for example, a charging operation can be performed according to the identified first license plate information. In the technical scheme disclosed in this embodiment, the ETC vehicle-mounted terminal is often applied to a scene when a vehicle enters a field, the first license plate information obtained by image recognition is collected by the camera device, the second license plate information on the ETC vehicle-mounted terminal is read by the ETC antenna device, whether the first license plate information is recognized accurately is determined by comparing the first license plate information with the second license plate information, when the second license plate information is not matched with the first license plate information, namely, the first license plate information is recognized wrongly, the first license plate information is corrected by reading the second license plate information of the ETC vehicle-mounted terminal to correct the first license plate information with the recognition mistake, and then the follow-up operation is executed through the corrected first license plate information, so that the problem that the work cannot normally run due to the recognition mistake of the first license plate information is effectively avoided.
Referring to fig. 5, fig. 5 is a schematic flow chart of a license plate correction method according to a fourth embodiment of the present invention. In this embodiment, after step S10, the license plate correction method further includes:
s100, comparing the license plate number in the first license plate information with a preset naming rule;
step S110, when the license plate number in the first license plate information meets a preset naming rule, executing step S40; and/or the presence of a gas in the gas,
and step S120, when the license plate number in the first license plate information does not meet the preset naming rule, executing step S20.
It should be noted that the preset naming rule includes, but is not limited to, the character length of the license plate number and the type corresponding to each character, wherein the character length of the license plate number is 7 characters, and the type corresponding to each character of the license plate number includes an alphabetic type, a numeric type, and a literal type. Whether the identified license plate number meets the license plate number naming specification or not can be determined in advance by comparing the license plate number in the first license plate information with the preset naming rule, when the license plate number does not meet the preset naming rule, namely, the license plate number does not meet the naming specification, the license plate number identification error of the first license plate information can be directly determined, at the moment, the license plate information of the current passing vehicle is obtained by executing and reading the second license plate information on the ETC vehicle-mounted terminal, then the first license plate information with the identification error is corrected according to the second license plate information to obtain the corrected first license plate information, then the follow-up operation is executed according to the corrected first license plate information, and if the charging operation is carried out according to the corrected first license plate information. It can be understood that when the license plate number meets the preset naming rule, that is, the license plate number meets the naming specification, whether the license plate number is correctly identified can be further determined, that is, the step of comparing the first license plate information with the third license plate information of the vehicle entering the field is executed.
In the technical scheme disclosed in the embodiment, after the first license plate information obtained by image recognition is acquired through the camera device, whether the license plate number in the first license plate information meets a preset naming rule or not can be judged firstly to determine whether the license plate number meets a license plate number naming specification or not for the first time, and when the license plate number meets the preset naming rule, whether the license plate number is correctly recognized or not can be determined again, namely, the first license plate information is compared with the third license plate information of the entering field to execute the subsequent operation; when the license plate number does not meet the preset naming rule, the first license plate information obtained by recognition can be directly judged to be error information, the first license plate information can be corrected by obtaining the second license plate information on the ETC vehicle-mounted terminal so as to correct the first license plate information with the recognition error, therefore, whether the license plate number meets the license plate number naming specification or not can be determined in advance, corresponding operation can be executed according to the comparison result, and the method is simpler and more targeted.
The present invention also provides an ETC antenna device including: the license plate correction method comprises a memory, a processor and a license plate correction program which is stored in the memory and can run on the processor, wherein the license plate correction program realizes the steps of the license plate correction method in any embodiment when being executed by the processor.
The invention further provides a computer-readable storage medium, wherein a license plate correction program is stored on the computer-readable storage medium, and the license plate correction program is executed by the processor to realize the steps of the license plate correction method in any embodiment.
In the embodiments of the ETC antenna device and the computer-readable storage medium provided by the present invention, all technical features of the embodiments of the license plate correction method described above are included, and the contents of the expansion and explanation of the description are basically the same as those of the embodiments based on the license plate correction method, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A license plate correction method is characterized by comprising the following steps:
identifying according to the image acquired by the camera device to obtain first license plate information;
reading second license plate information of the ETC vehicle-mounted terminal;
and correcting the first license plate information according to the second license plate information.
2. The license plate correction method of claim 1, wherein after the step of identifying the first license plate information according to the image captured by the camera device, the license plate correction method further comprises:
comparing the first license plate information with third license plate information of the vehicle entering the field, wherein when the vehicle is detected to leave the field, the step of acquiring image recognition according to the camera device to obtain the first license plate information is executed;
and when the third license plate information is not matched with the first license plate information, executing the step of reading the second license plate information of the ETC vehicle-mounted terminal.
3. The license plate correction method of claim 2, wherein after the step of correcting the first license plate information based on the second license plate information, the license plate correction method further comprises:
and carrying out charging operation according to the corrected first license plate information, and automatically deducting vehicle cost from an account number bound by the ETC vehicle-mounted terminal according to a charging result obtained by the charging operation.
4. The license plate correction method according to claim 1, wherein after the step of reading the second license plate information of the ETC in-vehicle terminal, the license plate correction method further comprises:
comparing the first license plate information with the second license plate information;
and when the second license plate information does not match the first license plate information, executing the step of correcting the first license plate information according to the second license plate information.
5. The license plate correction method of claim 4, wherein the step of identifying the first license plate information according to the image collected by the camera device is performed when the vehicle entrance is detected.
6. The license plate correction method of claim 2, wherein after the step of identifying the first license plate information according to the image captured by the camera device, the license plate correction method further comprises:
comparing the license plate number in the first license plate information with a preset naming rule;
when the license plate number in the first license plate information meets a preset naming rule, a step of comparing the first license plate information with third license plate information of the entering field is executed; and/or the presence of a gas in the gas,
and when the license plate number in the first license plate information does not meet a preset naming rule, executing a step of reading second license plate information of the ETC vehicle-mounted terminal.
7. The license plate correction method of claim 1, wherein the step of correcting the first license plate information based on the second license plate information comprises:
when the number of characters of the second license plate information is consistent with that of the first license plate information, determining a correction position where a different character in the second license plate information is located from that in the first license plate information;
and correcting the character to be corrected at the correction position in the first license plate information by adopting the target character at the correction position in the second license plate information.
8. The license plate correction method of claim 1, wherein the step of correcting the first license plate information based on the second license plate information comprises:
when the number of the characters of the second license plate information is not consistent with the number of the characters of the first license plate information, adding correction characters to the license plate number of the first license plate information according to the number of the characters of the license plate number of the second license plate information;
when the number of characters of the second license plate information is consistent with that of the first license plate information, determining a correction position where a different character in the second license plate information is located from that in the first license plate information;
and correcting the character to be corrected at the correction position in the first license plate information by adopting the target character at the correction position in the second license plate information.
9. An ETC antenna device, comprising: a memory, a processor, and a license plate correction program stored in the memory and executable on the processor, the license plate correction program when executed by the processor implementing the steps of the license plate correction method of any of claims 1-8.
10. A computer-readable storage medium, wherein the computer-readable storage medium has stored thereon a license plate correction program, which when executed by a processor, performs the steps of the license plate correction method of any one of claims 1-8.
CN202010084475.9A 2020-02-10 2020-02-10 License plate correction method, ETC antenna device and computer readable storage medium Active CN111325122B (en)

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CN202410228701.4A CN118097577A (en) 2020-02-10 2020-02-10 License plate correction method, ETC antenna device and computer readable storage medium
CN202010084475.9A CN111325122B (en) 2020-02-10 2020-02-10 License plate correction method, ETC antenna device and computer readable storage medium
CN202410228732.XA CN118115956A (en) 2020-02-10 2020-02-10 Vehicle parking fee or toll payment method, ETC antenna device and storage medium

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