CN113593255A - Parking space management method, equipment and system - Google Patents
Parking space management method, equipment and system Download PDFInfo
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- CN113593255A CN113593255A CN202110887988.8A CN202110887988A CN113593255A CN 113593255 A CN113593255 A CN 113593255A CN 202110887988 A CN202110887988 A CN 202110887988A CN 113593255 A CN113593255 A CN 113593255A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
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Abstract
The application discloses a parking space management method, equipment and a system, and relates to the technical field of parking space supervision. Parking stall management equipment is used for: acquiring a first license plate number bound to a target parking space; identifying a second license plate number of the target vehicle parked on the target parking space; when the alarm condition is met, displaying alarm information aiming at the second license plate number; when the alarm condition is not met, the alarm information aiming at the second license plate number is prohibited to be displayed; wherein the alarm condition includes: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero. The problem that parking stall management equipment produced more mistake and reported an emergency and asked for help or increased vigilance has been solved to this application, and this application is used for the management of parking stall.
Description
Technical Field
The application relates to the technical field of parking space supervision, in particular to a parking space management method, equipment and system.
Background
Residence communities are generally provided with parking lots, and parking spaces of the parking lots are bound with license plate numbers of users to which the parking spaces belong. In order to find the parking space occupation behavior in time, the residential area is additionally provided with parking space management equipment.
The operation process of the parking space management equipment is as follows: when a vehicle is parked in the parking space, the equipment collects the license plate image of the parked vehicle and identifies the license plate number from the license plate image. And then, the equipment can compare the license plate number with the license plate number bound to the parking space, and if the license plate number is different from the license plate number bound to the parking space, the equipment can display warning information.
However, the quality of the license plate image collected by the parking space management equipment affects the accuracy of license plate number identification. When the quality of the license plate image collected by the parking space management equipment is poor, the situation of wrong license plate identification can occur, so that more false alarms are generated by the parking space management equipment.
Disclosure of Invention
The application provides a parking space management method, equipment and a system, which can solve the problem that more false alarms are generated by parking space management equipment. The technical scheme is as follows:
in a first aspect, a parking space management device is provided, and the parking space management device is used for:
acquiring a first license plate number bound to a target parking space;
identifying a second license plate number of a target vehicle parked on the target parking space;
when the alarm condition is met, displaying alarm information aiming at the second license plate number;
prohibiting the display of the warning information for the second license plate number when the warning condition is not satisfied;
wherein the alarm condition comprises: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero.
In a second aspect, a parking space management system is provided, which includes: any one of the parking space management devices of the first aspect, and an alarm;
the parking space management equipment is used for: and when the alarm condition is met, controlling the alarm to display the alarm information aiming at the second license plate number.
In a third aspect, a parking space management method is provided, where the method includes:
acquiring a first license plate number bound to a target parking space;
identifying a second license plate number of a target vehicle parked on the target parking space;
when the alarm condition is met, displaying alarm information aiming at the second license plate number;
prohibiting the display of the warning information for the second license plate number when the warning condition is not satisfied;
wherein the alarm condition comprises: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero.
In a fourth aspect, a parking space management device is provided, the parking space management device comprising: the parking space management system comprises a processor and a memory, wherein the memory is stored with a computer program, and the processor realizes the parking space management method of the third aspect when the computer program is loaded and executed.
In a fifth aspect, a computer-readable storage medium is provided, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the parking space management method according to the third aspect.
In a sixth aspect, a computer program product containing instructions is provided, which when run on a computer causes the computer to perform the method of managing parking spaces of the third aspect.
The beneficial effect that technical scheme that this application provided brought includes at least:
in summary, in the parking space management method provided in the embodiment of the present application, the alarm condition includes that the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold, and the target difference threshold is greater than zero. When the first license plate bound to the target parking space is the license plate of the user to which the target parking space belongs, even if the second license plate identified by the parking space management equipment is wrong, the difference degree between the second license plate and the first license plate is generally smaller than the target difference degree threshold value when the target vehicle parked on the target parking space is the vehicle (provided with the first license plate) of the user to which the target parking space belongs, so that the alarm condition is not met, and the false alarm can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a parking space management method according to an embodiment of the present application;
fig. 2 is a flowchart of another parking space management method according to an embodiment of the present application;
fig. 3 is a flowchart of another parking space management method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a parking space management device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a parking space management system according to an embodiment of the present application.
Detailed Description
To make the principles, technical solutions and advantages of the present application clearer, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Residential communities generally manage the parking spaces in a parking lot through a parking space management device. Generally, the parking space management device identifies the license plate number of the vehicle parked in the parking space, compares the license plate number with the license plate number bound to the parking space, and displays warning information if the license plate number is different from the license plate number bound to the parking space.
However, in the image recognition process, due to the reasons of light, angle, license plate breakage and the like, the numbers and/or letters with similar shapes are often recognized incorrectly, such as: 8. b and 3, 0, D, U and C, 1, L and 7, X, Y and V, etc. Therefore, even if the vehicle of the user belonging to the parking space is parked in the parking space, if the parking space management device identifies the license plate number of the vehicle by mistake, the parking space management device determines that the vehicle parked in the parking space is not the vehicle of the user and generates a mistake alarm, so that the experience of the user belonging to the parking space is poor.
The embodiment of the application provides a parking space management method, which can allow a license plate number identification result and a bound license plate number to have a certain difference degree, so that the error alarm of parking space management equipment is reduced, and the parking experience of a user to whom a parking space belongs is improved.
Fig. 1 is a flowchart of a parking space management method provided in an embodiment of the present application, where the method may be used for a parking space management device. As shown in fig. 1, the method includes:
And 102, identifying a second license plate number of the target vehicle parked on the target parking space.
And 105, prohibiting displaying the alarm information aiming at the second license plate number.
In summary, in the parking space management method provided in the embodiment of the present application, the alarm condition includes that the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold, and the target difference threshold is greater than zero. When the first license plate bound to the target parking space is the license plate of the user to which the target parking space belongs, even if the second license plate identified by the parking space management equipment is wrong, the difference degree between the second license plate and the first license plate is generally smaller than the target difference degree threshold value when the target vehicle parked on the target parking space is the vehicle (provided with the first license plate) of the user to which the target parking space belongs, so that the alarm condition is not met, and the false alarm can be reduced.
And when the second license plate number identified by the parking space management equipment is correct, if the target vehicle parked in the target parking space is the vehicle of the user to which the target parking space belongs, the second license plate number is the same as the first license plate number. At the moment, the difference degree between the second license plate number and the first license plate number is smaller than the target difference degree threshold value, the alarm condition is not met, and the parking space management equipment cannot give an alarm.
Whether the second license plate number identified by the parking space management device is correct or not, if the target vehicle parked in the target parking space is not the vehicle of the user belonging to the target parking space, the difference degree between the second license plate number and the first license plate number is generally larger than or equal to the target difference degree threshold value. At the moment, the alarm condition is met, and the parking space management equipment can alarm.
Fig. 2 is a flowchart of another space management method provided in the embodiment of the present application, and the method may be used for a space management device. As shown in fig. 2, the method includes:
Optionally, the parking space management device adopts a manual entry mode when acquiring the first license plate number. Exemplarily, a parking space manager inputs the corresponding relation between the target parking space and the first license plate number to the parking space management device. Correspondingly, the parking space management equipment can receive the corresponding relation input by the parking space management personnel and record the corresponding relation.
The target parking space may be any parking space in the parking lot, and the first license plate number is a license plate number bound to the target parking space (for example, a license plate number of a user to which the target parking space belongs).
In step 202, the parking space management device may collect a license plate image of the parked vehicle and identify a second license plate number from the license plate image.
Optionally, a camera is disposed near the target parking space, and the parking space management device is connected to the camera. In step 202, the parking space management device may control the camera to capture the license plate image. For example, the parking space management device may control the camera to acquire a video stream of the target parking space, and then the parking space management device acquires the license plate image from the video stream. And then, the parking space management equipment can identify a second license plate number according to the license plate image. For example, the parking space management device may identify the second license plate number of the parked target vehicle through an artificial intelligence algorithm. Optionally, the second license plate number may also be sent to the parking space management device by the camera after the second license plate number is identified, which is not limited in the embodiment of the present application.
The target vehicle may or may not be the vehicle of the user to which the target parking space belongs. The second license plate number can be a license plate number with correct license plate image recognition, and can also be a license plate number with wrong recognition caused by the parking space management equipment due to environmental factors (such as light change, object shielding and the like).
For example, the license plate number of the target vehicle is "× × L ×", and the second license plate number recognized by the parking space management device may be "× L × × (correct recognition) or may be" × 7 × × (wrong recognition), where "×" represents any character.
It should be noted that, in the embodiment of the present application, the time for identifying the license plate number by the parking space management device is not limited. For example, the parking space management device may identify the license plate number when the vehicle enters the parking space, or the parking space management device may identify the license plate number after the vehicle is parked in the parking space.
The alarm condition comprises that the difference degree of the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero. When the warning condition is not satisfied, the parking space management device performs step 206 (i.e., prohibits the display of the warning information for the second license plate number). The first license plate number is assumed to be the license plate number of the user to which the target parking space belongs, and the vehicle of the user to which the target parking space belongs is parked at the target parking space. If the parking space management device identifies the wrong second license plate number due to environmental factors, the difference degree between the second license plate number and the first license plate number is generally smaller than the target difference degree threshold value, so that the alarm condition is not met, and the false alarm of the parking space management device can be avoided.
Optionally, the parking space management device may determine whether the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold according to the character string editing distance. For example, when determining whether the alarm condition is satisfied, the parking space management device may first obtain a character string edit distance between the first license plate number and the second license plate number. When the character string edit distance is greater than or equal to the character string edit distance threshold, the parking space management device may determine that the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold. When the character string edit distance is smaller than the character string edit distance threshold, the parking space management device may determine that the difference between the first license plate number and the second license plate number is smaller than the target difference threshold.
Alternatively, the parking space management device may define an equivalent character set (i.e., characters that are easily confused in license plate recognition), and obtain a character string edit distance between the first license plate number and the second license plate number based on the equivalent character set. For example, the slot management device may define "8, B, and 3" as equivalent character groups. The parking space management device can also continuously update (such as adding, modifying and/or deleting) equivalent character groups. In addition, the number of the same character groups is not limited in the embodiment of the present application.
For example, in the process of acquiring the character string edit distance between the first license plate number and the second license plate number based on the equivalent character group, the parking space management device may determine that the character string edit distance is zero when the second license plate number is the same as the first license plate number. When the second license plate number is different from the first license plate number, the parking space management equipment firstly determines at least one character modification operation which is required to be executed for modifying the second license plate number into the first license plate number; and then, the parking space management equipment determines the sum of the editing distances corresponding to the at least one character modification operation as the character string editing distance. The character modification operation comprises at least one of a first operation and a second operation, wherein the first operation is used for replacing two characters in the equivalent character group, and the second operation is different from the first operation; the editing distance corresponding to the first operation is smaller than the editing distance corresponding to the second operation.
For example, a first license plate is set as the license plate of the user belonging to the target parking space, the character string editing distance threshold is 2, the first license plate bound to the target parking space is "× × L", "L" and "7" are two characters in the equivalent character group, the editing distance of the first operation is 0.5, and the editing distance of the second operation is 1. Depending on the second license plate number identified, there are several situations:
(1) the target vehicle is the vehicle of the user to which the target parking space belongs, the second license plate number identified by the parking space management device is marked with the symbol mark L, and the characters represented by the symbol marks in any sequence in the second license plate number are the same as the characters represented by the symbol marks in the same sequence in the first license plate number. At this time, the first license plate number and the second license plate number are completely the same, that is, the character string edit distance is 0, the character string edit distance is smaller than the character string edit distance threshold 2, the alarm condition is not satisfied, and the parking space management device executes step 206 (the alarm information is prohibited to be displayed).
(2) The target vehicle is the vehicle of the user to which the target parking space belongs, the second license plate number identified by the parking space management device is 7, and the characters represented by the 'marks' in any sequence in the second license plate number are the same as the characters represented by the 'marks' in the same sequence in the first license plate number. At this time, the second license plate number can obtain the first license plate number only by performing the character replacement operation once, and "L" and "7" are two characters in the equivalent character group. Therefore, the character string edit distance is 0.5, the character string edit distance is smaller than the character string edit distance threshold 2, the alarm condition is not satisfied, and the parking space management device executes step 206 (prohibits the display of the alarm information).
(3) The target vehicle is not the vehicle of the user belonging to the target parking space, the license plate number of the vehicle is marked with the symbol B, and the characters represented by the symbol in any sequence in the license plate number are different from the characters represented by the symbol in the same sequence in the first license plate number. Therefore, no matter whether the identified second license plate number is correct or not, the second license plate number always needs to be subjected to more than 2 character string editing operations to obtain the first license plate number. At this time, the character string edit distance (greater than or equal to 2) is greater than or equal to the character string edit distance threshold 2, the alarm condition is satisfied, and the parking space management device executes step 204 (i.e., displays the alarm information for the second license plate number).
And step 204, displaying the alarm information aiming at the second license plate number.
For example, the parking space management device may include a display screen, a speaker, and other units for warning, and the parking space management device may display the warning information using the units for warning.
Further illustratively, the parking space management device includes an alarm, which may be disposed near the target parking space, and the parking space management device may be connected to the alarm. In step 204, the parking space management device is configured to control the alarm to display the alarm information for the target license plate number when the alarm condition is met. The alarm can be a sound box, a display screen, a warning lamp (the warning lamp can be arranged on the camera), and the like.
The parking space management equipment has various ways for displaying the warning information, and a plurality of ways are explained as examples below.
(1) In an optional mode, the parking space management equipment adopts a voice broadcast mode when displaying the warning information. Illustratively, the second license plate is given by "× B ×". After determining that the second license plate number meets the alarm condition, the parking space management device may control the sound box to broadcast the voice of "please the car owner to stop the parking space occupation behavior".
(2) In another optional mode, the parking space management device adopts an image display mode when displaying the warning information. For example, after determining that the second license plate number satisfies the alarm condition, the parking space management device may display the content including: and the warning image of the parking space occupation stopping behavior of the vehicle owner.
(3) In another optional mode, the parking space management device adopts a light prompting mode when displaying the warning information. For example, after determining that the second license plate number meets the alarm condition, the parking space management device may control a warning light installed on the target parking space to flash.
(4) In yet another alternative, the parking space management device may adopt two or three of the three aforementioned alternatives. For example, the parking space management device adopts a mode of combining voice broadcast and image display when displaying the warning information. Illustratively, the second license plate is given by "× B ×". After it is determined that the second license plate number meets the alarm condition, the parking space management device can control the sound box to broadcast the voice of 'please the car owner to stop the parking space occupation behavior', and can control the display screen to display the content including: and the warning image of the parking space occupation stopping behavior of the vehicle owner.
Optionally, the parking space management device notifies the parking space manager to intervene in the field while displaying the warning information for the second license plate number. For example, the parking space management device may display the warning information on the parking space management device while controlling the warning device to display the warning information, and/or send the parking space number and the second license plate number of the target parking space to the user device (such as a mobile phone) of the parking space manager to notify the parking space manager that the target vehicle occupies the target parking space.
When the alarm condition is met, the parking space management equipment can display the alarm information aiming at the second license plate number and store the alarm information and the display time thereof.
It should be noted that, in the embodiment of the present application, the order of displaying the warning information, storing the warning information, and displaying time of the warning information by the parking space management device is not limited. In the embodiment of the application, the parking space management device firstly displays the warning information and then stores the warning information and the display time of the warning information. Of course, the parking space management device may store the warning information and the display time thereof first and then display the warning information, or the parking space management device may store the warning information and the display time thereof and display the warning information at the same time.
And step 206, forbidding displaying the alarm information aiming at the second license plate number.
In summary, in the parking space management method provided in the embodiment of the present application, the alarm condition includes that the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold, and the target difference threshold is greater than zero. When the first license plate bound to the target parking space is the license plate of the user to which the target parking space belongs, even if the second license plate identified by the parking space management equipment is wrong, the difference degree between the second license plate and the first license plate is generally smaller than the target difference degree threshold value when the target vehicle parked on the target parking space is the vehicle (provided with the first license plate) of the user to which the target parking space belongs, so that the alarm condition is not met, and the false alarm can be reduced.
The above contents include the following alarm conditions: for example, the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold, and optionally, the alarm condition may further include other conditions.
Exemplary, the alarm condition may further include: when the reference license plate number exists, the difference degree of the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value. The reference license plate number belongs to the license plate number which is aimed at by the alarm information displayed in the target time length before the current time. Under the condition, when judging whether the alarm condition is met, the parking space management equipment not only needs to judge whether the difference degree between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold value, but also needs to judge whether a reference license plate number exists, and when the reference license plate number exists, judges whether the difference degree between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference degree threshold value.
In this embodiment of the application, if the difference between the second license plate number and the reference license plate number is smaller than the auxiliary difference threshold, the parking space management device may consider that the second license plate number is the same as the reference license plate number. If the reference license plate number exists and the difference degree between the second license plate number and the reference license plate number is smaller than the auxiliary difference degree threshold value, the parking space management equipment can determine that the alarm information aiming at the second license plate number is displayed within the target time length. At this time, the parking space management device executes step 206 (forbidding displaying the warning message), so as to avoid repeatedly displaying the warning message within the target duration.
For example, it is assumed that the target difference threshold and the auxiliary difference threshold are the same, and the parking space management device determines whether the difference between the first license plate and the second license plate is greater than or equal to the target difference threshold and whether the difference between the second license plate and the reference license plate is greater than or equal to the auxiliary difference threshold according to the character string editing distance. Let the string edit distance threshold be 2, the edit distance for the first operation be 0.5, and the edit distance for the second operation be 1, with "8" and "B" being two characters within the equivalent character group. If the first license plate number is ". times.L. times.X", the second license plate number is ". times.8. times.X", and the characters represented by ". times" in any order in the second license plate number are different from the characters represented by ". times" in the same order in the first license plate number. At this time, the target difference degree between the second license plate number and the first license plate number is greater than the target difference degree threshold value. But if there is a reference license plate "+" B "+" and the characters represented by "+" in any order in the reference license plate are the same as those represented by "+" in the same order in the second license plate. Then the second license plate number can obtain the reference license plate number only by executing two character replacement operations in the equivalent character group once, namely the character string editing distance between the second license plate number and the reference license plate number is 0.5, and the character string editing distance is smaller than the auxiliary difference threshold value. Therefore, the warning condition is not satisfied, and the space management apparatus executes step 206 (prohibits the presentation of the warning information).
The reference license plate number belongs to the license plate number which is displayed in the target time length before the current time and is aimed at by the alarm information. The target time period may be any time period, such as 30 minutes, 1 hour, or 1 day, etc. The parking space management equipment can detect whether the warning information is displayed within the target time length before the current moment. If the warning information is not displayed within the target duration before the current moment, the parking space management equipment can determine that the reference license plate number does not exist. If the warning information is displayed in the target time length before the current time, the parking space management equipment needs to determine that the license plate number corresponding to the warning information displayed in the target time length is the reference license plate number.
Optionally, the parking space management device may store the displayed warning information and the display time thereof. Such as a slot management device, stores this information locally or in other devices. When the parking space management equipment detects whether the alarm information is displayed in the target time length before the current time, the parking space management equipment can acquire the stored alarm information and the display time thereof and determine whether the alarm information is displayed in the target time length according to the information. For example, in step 205, the parking space management device may store the warning information and the display time thereof when the warning condition is satisfied. When subsequently judging whether the alarm information of other license plate numbers needs to be displayed, the parking space management equipment can determine the corresponding reference license plate numbers according to the stored alarm information and the display time of the second license plate number.
It should be noted that, if there are multiple reference license plate numbers, the parking space management device needs to determine whether the difference between the second license plate number and each reference license plate number is greater than or equal to the auxiliary difference threshold. When the difference degree between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold value, and the difference degree between the second license plate number and each reference license plate number is greater than or equal to the auxiliary difference degree threshold value, the parking space management equipment determines that the alarm condition is met.
The target difference threshold and the auxiliary difference threshold may be the same or different, and in this embodiment, the target difference threshold is equal to the auxiliary difference threshold. The auxiliary disparity threshold may be greater than the target disparity threshold when the target disparity threshold is different from the auxiliary disparity threshold. The auxiliary difference threshold is increased, the second license plate number and the reference license plate number are allowed to have larger difference, and repeated alarm on the reference license plate number can be reduced as long as the second license plate number and the reference license plate number are still considered as the license plate number of the same vehicle within the auxiliary difference threshold.
In the above, the reference license plate number is taken as an example of the license plate number corresponding to the alarm information displayed in the target duration before the current time. Optionally, the reference license plate number may have other characteristics, for example, the number of the alarm messages for the reference license plate number shown in the target duration is greater than or equal to a number threshold (e.g., 2, 3, 4, 5, or 6). In this case, when the parking space management device determines that the warning information is displayed within the target time length before the current time, it is further required to determine at least one license plate number to which all the warning information displayed within the target time length is directed. Then, the parking space management device may determine the number of warning messages corresponding to each license plate number in the at least one license plate number, where the number of warning messages is: the number of the alarm information aiming at the license plate number displayed in the target time length. When the number of the warning messages corresponding to a certain license plate number in the at least one license plate number is greater than or equal to the number threshold value, the parking space management device can determine that the license plate number is the reference license plate number. When the number of the warning messages corresponding to a certain license plate number in the at least one license plate number is smaller than the number threshold value, the parking space management equipment can determine that the license plate number is not the reference license plate number. By using the license plate number of which the number of the alarm information is greater than or equal to the number threshold as the reference license plate number, the repeated alarm frequency can be kept within a certain frequency within the target time length.
For example, if the threshold of the number of alarm information is 2, the parking space management device displays one alarm information for "× J × × and two alarm information for" × B × × in the target duration before the current time. It can be seen that the number of alarm messages corresponding to the license plate number "× J × × is less than the number threshold, so that the license plate number" × J × × is not a reference license plate number. The number of the alarm information corresponding to the license plate number is equal to the number threshold, so that the license plate number is the reference license plate number.
The alarm condition in the above embodiment may include two conditions. Wherein the first condition is: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value; the second condition is: when the reference license plate number exists, the difference degree of the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value. When judging whether the alarm condition is met, the parking space management equipment can sequentially judge whether the two conditions are met. For example, the parking space management device first determines whether a first condition is satisfied, and then determines whether a second condition is satisfied; or the parking space management equipment judges whether the second condition is met or not firstly and then judges whether the first condition is met or not.
For example, when the parking space management device determines whether the first condition is satisfied and then determines whether the second condition is satisfied, the parking space management device may determine whether the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold value; when the difference degree between the first license plate number and the second license plate number is larger than or equal to the target difference degree threshold value, the parking space management equipment judges whether a reference license plate number exists or not; when the reference license plate number exists, the parking space management equipment judges whether the difference degree between the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value or not; and when the reference license plate number does not exist or the difference degree between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference degree threshold value, the parking space management equipment determines that the alarm condition is met. And when the difference degree between the first license plate number and the second license plate number is smaller than the target difference degree threshold value, or the difference degree between the second license plate number and the reference license plate number is smaller than the auxiliary difference degree threshold value, the parking space management equipment determines that the alarm condition is not met.
The following is a brief description of the parking space management method provided in the embodiment of the present application by using the example shown in fig. 3:
the parking space management device first identifies the second license plate number. And then, the parking space management equipment calculates the character string editing distance 1 and judges whether the condition 1 is met or not according to the character string editing distance 1. Wherein, the character string editing distance 1 is the character string editing distance between the first license plate number and the second license plate number. The condition 1 includes: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero. And when the condition 1 does not accord with the condition, the parking space management equipment does not give an alarm, namely the parking space management equipment does not display the alarm information aiming at the second license plate number. When the condition 1 is met, the parking space management device makes a further judgment.
When the parking space management device performs the further judgment, the alarm records (including the alarm information displayed within the target duration) in the latest period of time can be read. And when the reference license plate number is determined to exist according to the record, the parking space management equipment acquires the reference license plate number, calculates the character string editing distance 2 and judges whether the condition 2 is met or not according to the character string editing distance 2. Wherein the character string edit distance 2 is a character string edit distance between the second license plate number and the reference license plate number. The condition 2 includes: the difference degree between the second license plate number and the reference license plate number is greater than or equal to an auxiliary difference degree threshold value, and the auxiliary difference degree threshold value is greater than zero. And when the condition 2 is not met, the parking space management equipment does not give an alarm, namely the alarm information aiming at the second license plate number is not displayed. When the condition 2 is met, the parking space management device generates a new alarm (i.e., displays the alarm information for the second license plate number), and stores the alarm information and the display time thereof.
The embodiment of the application provides a parking space management device, as shown in fig. 4, this parking space management device can include:
the first obtaining module 401 is configured to obtain a first license plate number bound to a target parking space;
an identification module 402 for identifying a second license plate number of a target vehicle parked at a target parking space;
a display module 403, configured to display the warning information for the second license plate number when the warning condition is met;
a display prohibition module 404, configured to prohibit displaying of the warning information for the second license plate number when the warning condition is not satisfied;
wherein the alarm condition includes: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero.
In summary, the embodiment of the present application provides a parking space management device, because the alarm condition includes that the difference degree between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold value, and the target difference degree threshold value is greater than zero. When the first license plate bound to the target parking space is the license plate of the user to which the target parking space belongs, even if the second license plate identified by the parking space management equipment is wrong, the difference degree between the second license plate and the first license plate is generally smaller than the target difference degree threshold value when the target vehicle parked on the target parking space is the vehicle (provided with the first license plate) of the user to which the target parking space belongs, so that the alarm condition is not met, the display module is forbidden to display the alarm information aiming at the second license plate, and the false alarm can be reduced.
Optionally, the parking space management device further includes:
a second obtaining module (not shown in fig. 4) for obtaining a character string edit distance between the first license plate number and the second license plate number;
a first determining module (not shown in fig. 4) for determining that the difference between the first license plate number and the second license plate number is greater than or equal to a target difference threshold when the character string edit distance is greater than or equal to the character string edit distance threshold.
Optionally, the second obtaining module is configured to:
when the second license plate number is different from the first license plate number, determining at least one character modification operation required to be executed for modifying the second license plate number into the first license plate number;
determining the sum of the editing distances corresponding to at least one character modification operation as a character string editing distance;
the character modification operation comprises at least one of a first operation and a second operation, wherein the first operation is used for replacing two characters in the equivalent character group, and the second operation is different from the first operation; the editing distance corresponding to the first operation is smaller than the editing distance corresponding to the second operation.
Optionally, the alarm condition of the parking space management device further includes:
when the reference license plate number exists, the difference degree of the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value;
the reference license plate number belongs to the license plate number which is aimed at by the alarm information displayed in the target time length before the current time.
Optionally, the parking space management device further includes:
a first determining module (not shown in fig. 4) for determining whether the difference between the first license plate number and the second license plate number is greater than or equal to a target difference threshold;
a second judging module (not shown in fig. 4) for judging whether a reference license plate number exists when the difference between the first license plate number and the second license plate number is greater than or equal to the target difference threshold;
a third judging module (not shown in fig. 4) for judging whether the difference between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference threshold value when the reference license plate number exists;
and a second determination module (not shown in fig. 4) for determining that the alarm condition is satisfied when the reference license plate number does not exist or the difference between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference threshold.
Optionally, the number of the alarm information for the reference license plate number displayed by the parking space management device in the target duration is greater than or equal to the number threshold.
Optionally, the parking space management device further includes:
and the storage module (not shown in the figure 4) is used for storing the alarm information aiming at the second license plate number and the display time of the alarm information aiming at the second license plate number when the alarm condition is met.
In summary, the embodiment of the present application provides a parking space management device, because the alarm condition includes that the difference degree between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold value, and the target difference degree threshold value is greater than zero. When the first license plate bound to the target parking space is the license plate of the user to which the target parking space belongs, even if the second license plate identified by the parking space management equipment is wrong, the difference degree between the second license plate and the first license plate is generally smaller than the target difference degree threshold value when the target vehicle parked on the target parking space is the vehicle (provided with the first license plate) of the user to which the target parking space belongs, so that the alarm condition is not met, the display module is forbidden to display the alarm information aiming at the second license plate, and the false alarm can be reduced.
The embodiment of the present application provides another parking space management device, where the parking space management device may include a processor, and the processor is configured to execute the parking space management method provided in the embodiment of the present application, such as the parking space management method shown in fig. 1 or fig. 2.
Optionally, the space management device may further include a memory, where a computer program is stored on the memory, and when the computer program is loaded and executed, the processor implements the space management method provided in the foregoing embodiments, for example, the method shown in fig. 1 or fig. 2.
The embodiment of the application provides a parking stall management system, as shown in fig. 5, this parking stall management system includes: parking space management device 501. The parking space management device may be any parking space management device provided in the embodiment of the present application, such as the parking space management device shown in fig. 4.
Optionally, as shown in fig. 5, the parking space management system further includes: an alarm 502; the parking space management device 501 is used for controlling the alarm 502 to display the alarm information aiming at the second license plate number when the alarm condition is met.
Optionally, as shown in fig. 5, the parking space management device further includes: a camera 503; parking space management device 501 is used for: the control camera 503 collects a license plate image of the target vehicle, and recognizes a second license plate number according to the license plate image.
The parking space management system can also comprise other equipment, and the embodiment of the application is not limited to the equipment.
An embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and the computer program is loaded by a processor and executes a parking space management method provided in the foregoing embodiment, for example, the method shown in fig. 1 or fig. 2.
An embodiment of the present application further provides a computer program product including instructions, and when the computer program product runs on a computer, the computer is enabled to execute the parking space management method provided by the foregoing method embodiment, for example, the method shown in fig. 1 or fig. 2.
In this application, "at least one" means one or more, "a plurality" means two or more. The term "and/or" in the present invention is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. In this disclosure, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that, the method embodiment provided in the embodiment of the present invention can be mutually referred to a corresponding apparatus embodiment, and the embodiment of the present invention does not limit this. The sequence of the steps of the method embodiments provided by the embodiments of the present invention can be appropriately adjusted, and the steps can be correspondingly increased or decreased according to the situation, and any method that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention shall be covered by the protection scope of the present invention, and therefore, the detailed description thereof shall not be repeated.
The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a parking stall management equipment which characterized in that, parking stall management equipment is used for:
acquiring a first license plate number bound to a target parking space;
identifying a second license plate number of a target vehicle parked on the target parking space;
when the alarm condition is met, displaying alarm information aiming at the second license plate number;
prohibiting the display of the warning information for the second license plate number when the warning condition is not satisfied;
wherein the alarm condition comprises: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero.
2. The parking space management device according to claim 1, wherein the parking space management device is further configured to:
acquiring a character string editing distance between the first license plate number and the second license plate number;
when the character string editing distance is larger than or equal to a character string editing distance threshold value, determining that the difference degree between the first license plate number and the second license plate number is larger than or equal to the target difference degree threshold value.
3. The parking space management device according to claim 2, wherein the parking space management device is configured to:
when the second license plate number is different from the first license plate number, determining at least one character modification operation required to be executed for modifying the second license plate number into the first license plate number;
determining the sum of the editing distances corresponding to the at least one character modification operation as the character string editing distance;
wherein the character modification operation comprises at least one of a first operation and a second operation, the first operation is used for replacing two characters in an equivalent character group, and the second operation is different from the first operation; and the editing distance corresponding to the first operation is smaller than the editing distance corresponding to the second operation.
4. The parking space management device according to any one of claims 1 to 3, wherein the alarm condition further includes:
when a reference license plate number exists, the difference degree of the second license plate number and the reference license plate number is greater than or equal to an auxiliary difference degree threshold value;
the reference license plate number belongs to the license plate number which is aimed at by the alarm information displayed in the target time length before the current time.
5. The parking space management device according to claim 4, wherein the number of the alarm messages for the reference license plate number shown in the target duration is greater than or equal to a number threshold.
6. The parking space management device according to claim 4, wherein the parking space management device is further configured to:
judging whether the difference degree of the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold value or not;
when the difference degree between the first license plate number and the second license plate number is larger than or equal to the target difference degree threshold value, judging whether the reference license plate number exists or not;
when the reference license plate number exists, judging whether the difference degree of the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value or not;
and when the reference license plate number does not exist or the difference degree of the second license plate number and the reference license plate number is larger than or equal to the auxiliary difference degree threshold value, determining that the alarm condition is met.
7. The parking space management device according to claim 4, wherein the parking space management device is further configured to:
and when the alarm condition is met, storing the alarm information aiming at the second license plate number and the display time of the alarm information aiming at the second license plate number.
8. The utility model provides a parking stall management system which characterized in that, parking stall management system includes: the space management device of any one of claims 1 to 7, and an alarm;
the parking space management equipment is used for: and when the alarm condition is met, controlling the alarm to display the alarm information aiming at the second license plate number.
9. The space management system according to claim 8, further comprising: a camera;
the parking space management equipment is used for:
controlling the camera to acquire a license plate image of the target vehicle;
and identifying the second license plate number according to the license plate image.
10. A parking space management method is characterized by comprising the following steps:
acquiring a first license plate number bound to a target parking space;
identifying a second license plate number of a target vehicle parked on the target parking space;
when the alarm condition is met, displaying alarm information aiming at the second license plate number;
prohibiting the display of the warning information for the second license plate number when the warning condition is not satisfied;
wherein the alarm condition comprises: the difference degree between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold value, and the target difference degree threshold value is greater than zero.
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