CN113593255B - Parking space management method, equipment and system - Google Patents
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- CN113593255B CN113593255BCN202110887988.8ACN202110887988ACN113593255BCN 113593255 BCN113593255 BCN 113593255BCN 202110887988 ACN202110887988 ACN 202110887988ACN 113593255 BCN113593255 BCN 113593255B
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Abstract
Description
Translated fromChinese技术领域technical field
本申请涉及车位监管技术领域，特别涉及一种车位管理方法、设备及系统。The present application relates to the technical field of parking space supervision, in particular to a parking space management method, equipment and system.
背景技术Background technique
住宅小区一般设有停车场，停车场的车位与车位所属用户的车牌号绑定。为了能及时发现车位占用行为，小区会在停车场加装车位管理设备。Residential districts generally have a parking lot, and the parking spaces in the parking lot are bound to the license plate numbers of the users to whom the parking spaces belong. In order to detect the occupancy of parking spaces in time, the community will install parking space management equipment in the parking lot.
车位管理设备的运行过程为：当车位上有车辆停放时，该设备会采集停放车辆的车牌图像，并从车牌图像中识别车牌号。之后，该设备会将该车牌号与该车位绑定的车牌号进行比较，如果该车牌号与该车位绑定的车牌号不同，则会展示告警信息。The operation process of the parking space management equipment is: when there is a vehicle parked in the parking space, the device will collect the license plate image of the parked vehicle, and recognize the license plate number from the license plate image. Afterwards, the device will 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, an alarm message will be displayed.
然而，车位管理设备采集的车牌图像的质量会影响车牌号识别的准确率。当车位管理设备采集的车牌图像的质量较差时，会出现车牌号识别错误的情况，使车位管理设备产生较多误告警。However, the quality of the license plate images collected by the parking space management equipment will affect the accuracy of license plate number recognition. When the quality of the license plate image collected by the parking space management device is poor, the license plate number recognition error may occur, causing the parking space management device to generate more false alarms.
发明内容Contents of the invention
本申请提供了一种车位管理方法、设备及系统，可以解决车位管理设备产生较多误告警的问题。所述技术方案如下：The application provides a parking space management method, equipment and system, which can solve the problem of many false alarms generated by the parking space management equipment. Described technical scheme is as follows:
第一方面，提供了一种车位管理设备，所述车位管理设备用于：In the first aspect, a parking space management device is provided, and the parking space management device is used for:
获取目标车位绑定的第一车牌号；Obtain the first license plate number bound to the target parking space;
识别所述目标车位上停放的目标车辆的第二车牌号；Identify the second license plate number of the target vehicle parked on the target parking space;
在告警条件满足时，展示针对所述第二车牌号的告警信息；When the warning condition is met, display the warning information for the second license plate number;
在所述告警条件不满足时，禁止展示针对所述第二车牌号的所述告警信息；When the warning condition is not met, prohibiting the display of the warning information for the second license plate number;
其中，所述告警条件包括：所述第一车牌号与所述第二车牌号的差异度大于或等于目标差异度阈值，所述目标差异度阈值大于零。Wherein, the warning condition includes: the degree of difference between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold, and the target difference degree threshold is greater than zero.
第二方面，提供了一种车位管理系统，所述车位管理系统包括：第一方面所述的任一种车位管理设备，以及告警器；In a second aspect, a parking space management system is provided, the parking space management system comprising: any parking space management device described in the first aspect, and an alarm;
所述车位管理设备用于：在告警条件满足时，控制所述告警器展示针对第二车牌号的告警信息。The parking space management device is configured to: control the alarm device to display alarm information for the second license plate number when the alarm condition is met.
第三方面，提供了一种车位管理方法，所述方法包括：In a third aspect, a parking space management method is provided, the method comprising:
获取目标车位绑定的第一车牌号；Obtain the first license plate number bound to the target parking space;
识别所述目标车位上停放的目标车辆的第二车牌号；Identify the second license plate number of the target vehicle parked on the target parking space;
在告警条件满足时，展示针对所述第二车牌号的告警信息；When the warning condition is met, display the warning information for the second license plate number;
在所述告警条件不满足时，禁止展示针对所述第二车牌号的所述告警信息；When the warning condition is not met, prohibiting the display of the warning information for the second license plate number;
其中，所述告警条件包括：所述第一车牌号与所述第二车牌号的差异度大于或等于目标差异度阈值，所述目标差异度阈值大于零。Wherein, the warning condition includes: the degree of difference between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold, and the target difference degree threshold is greater than zero.
第四方面，提供了一种车位管理设备，车位管理设备包括：处理器和存储器，存储器上存储有计算机程序，处理器在加载并执行所述计算机程序时实现如上述第三方面的车位管理方法。In a fourth aspect, a parking space management device is provided. The parking space management device includes: a processor and a memory, and a computer program is stored in the memory. When the processor loads and executes the computer program, it realizes the parking space management method in the third aspect above .
第五方面，提供了一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序，计算机程序由处理器加载并执行以实现如上述第三方面的车位管理方法。In a fifth aspect, a computer-readable storage medium is provided. A computer program is stored in the computer-readable storage medium, and the computer program is loaded and executed by a processor to implement the parking space management method in the third aspect above.
第六方面，提供了一种包含指令的计算机程序产品，当计算机程序产品在计算机上运行时，使得计算机执行上述第三方面的车位管理方法。In a sixth aspect, a computer program product containing instructions is provided, and when the computer program product is run on a computer, the computer is made to execute the parking space management method of the third aspect above.
本申请提供的技术方案带来的有益效果至少包括：The beneficial effects brought by the technical solution provided by the application at least include:
综上所述，本申请实施例提供的车位管理方法中，告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。在目标车位绑定的第一车牌号是目标车位所属用户的车牌号时，即使车位管理设备识别到的第二车牌号错误，但由于在目标车位上停放的目标车辆是目标车位所属用户的车辆(具有第一车牌号)时，该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，因此，告警条件不满足，从而可以减少误告警。To sum up, in the parking space management method provided by the embodiment of the present application, the warning 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 number bound to the target parking space is the license plate number of the user to whom the target parking space belongs, even if the second license plate number recognized by the parking space management device is wrong, the target vehicle parked on the target parking space is the vehicle of the user to which the target parking space belongs. (with the first license plate number), the degree of difference between the second license plate number and the first license plate number is generally smaller than the target difference degree threshold, therefore, the alarm condition is not satisfied, thereby reducing false alarms.
附图说明Description of drawings
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
图1为本申请实施例提供的一种车位管理方法的流程图；Fig. 1 is the flowchart of a kind of parking space management method provided by the embodiment of the present application;
图2为本申请实施例提供的另一种车位管理方法的流程图；Fig. 2 is a flow chart of another parking space management method provided by the embodiment of the present application;
图3为本申请实施例提供的另一种车位管理方法的流程图；Fig. 3 is a flow chart of another parking space management method provided by the embodiment of the present application;
图4为本申请实施例提供的一种车位管理设备的结构示意图；FIG. 4 is a schematic structural diagram of a parking space management device provided in an embodiment of the present application;
图5为本申请实施例提供的一种车位管理系统的结构示意图。FIG. 5 is a schematic structural diagram of a parking space management system provided by an embodiment of the present application.
具体实施方式detailed description
为使本申请的原理、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。In order to make the principles, technical solutions and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
住宅小区一般通过车位管理设备对停车场的车位进行管理。通常，车位管理设备会识别车位上停放车辆的车牌号，并将该车牌号与该车位绑定的车牌号进行比较，如果该车牌号与该车位绑定的车牌号不同，则会展示告警信息。Residential districts generally manage the parking spaces in the parking lot through the parking space management equipment. Usually, the parking space management device will identify the license plate number of the vehicle parked in the parking space, and compare the license plate number with the license plate number bound to the parking space. If the license plate number is different from the license plate number bound to the parking space, an alarm message will be displayed .
但是，在图像识别过程中，由于光线、角度、车牌折损等原因，外形相似的数字和/或字母经常会被识别错误，比如：8、B和3，0、D、U和C，1、L和7，X、Y和V等。因此，即使是车位所属用户的车辆停放在该车位，如果车位管理设备将该车辆的车牌号识别错误，车位管理设备将认定该车位所停的车辆并不是该用户的车辆，并产生误告警，这会使车位所属用户的体验较差。However, in the process of image recognition, due to light, angle, broken license plate, etc., numbers and/or letters with similar shapes are often misrecognized, 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 recognizes the license plate number of the vehicle incorrectly, the parking space management device will determine that the vehicle parked in the parking space is not the user's vehicle, and generate a false alarm. This will make the experience of the user who owns the parking space poor.
本申请实施例提供了一种车位管理方法，该方法能够允许车牌号识别结果与绑定车牌号有一定的差异度，从而减少车位管理设备误告警，提升车位所属用户的停车体验。The embodiment of the present application provides a parking space management method, which can allow a certain degree of difference between the license plate number recognition result and the bound license plate number, thereby reducing false alarms from the parking space management device and improving the parking experience of the users who belong to the parking space.
示例地，图1为本申请实施例提供的一种车位管理方法的流程图，该方法可以用于车位管理设备。如图1所示，该方法包括：As an example, FIG. 1 is a flow chart of a parking space management method provided in an embodiment of the present application, and the method may be used in a parking space management device. As shown in Figure 1, the method includes:
步骤101、获取目标车位绑定的第一车牌号。
步骤102、识别目标车位上停放的目标车辆的第二车牌号。
步骤103、判断告警条件是否满足，告警条件包括：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，其中，目标差异度阈值大于零。在告警条件满足时，执行步骤104；在告警条件不满足时，执行步骤106。
步骤104、展示针对第二车牌号的告警信息
步骤105、禁止展示针对第二车牌号的告警信息。
综上所述，本申请实施例提供的车位管理方法中，告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。在目标车位绑定的第一车牌号是目标车位所属用户的车牌号时，即使车位管理设备识别到的第二车牌号错误，但由于在目标车位上停放的目标车辆是目标车位所属用户的车辆(具有第一车牌号)时，该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，因此，告警条件不满足，从而可以减少误告警。To sum up, in the parking space management method provided by the embodiment of the present application, the warning 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 number bound to the target parking space is the license plate number of the user to whom the target parking space belongs, even if the second license plate number recognized by the parking space management device is wrong, the target vehicle parked on the target parking space is the vehicle of the user to which the target parking space belongs. (with the first license plate number), the degree of difference between the second license plate number and the first license plate number is generally smaller than the target difference degree threshold, therefore, the alarm condition is not satisfied, thereby reducing false alarms.
在车位管理设备识别到的第二车牌号正确时，如果目标车位上停放的目标车辆是目标车位所属用户的车辆，那么该第二车牌号与第一车牌号相同。此时，第二车牌号与第一车牌号的差异度小于目标差异度阈值，告警条件也不满足，车位管理设备也不会告警。When the second license plate number recognized by the parking space management device 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, then the second license plate number is the same as the first license plate number. At this time, the difference degree between the second license plate number and the first license plate number is less than the target difference degree threshold, the alarm condition is not satisfied, and the parking space management device will not give an alarm.
无论车位管理设备识别到的第二车牌号是否正确，如果目标车位上停放的目标车辆不是目标车位所属用户的车辆，那么，该第二车牌号与第一车牌号的差异度一般都大于或等于目标差异度阈值。此时，告警条件满足，车位管理设备会进行告警。Regardless of whether the second license plate number recognized 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 to whom the target parking space belongs, then the difference between the second license plate number and the first license plate number is generally greater than or equal to Target difference threshold. At this time, the alarm condition is met, and the parking space management device will issue an alarm.
又示例地，图2为本申请实施例提供的另一种车位管理方法的流程图，该方法可以用于车位管理设备。如图2所示，该方法包括：As another example, FIG. 2 is a flow chart of another parking space management method provided in the embodiment of the present application, and the method may be used in a parking space management device. As shown in Figure 2, the method includes:
步骤201、获取目标车位绑定的第一车牌号。
可选地，车位管理设备在获取第一车牌号时，采用人工录入的方式。示例地，车位管理人员向车位管理设备录入目标车位与第一车牌号的对应关系。相应地，车位管理设备可以接收车位管理人员录入的该对应关系，并记录该对应关系。Optionally, when the parking space management device acquires the first license plate number, it uses manual input. For example, the parking space management personnel enter the corresponding relationship between the target parking space and the first license plate number into the parking space management device. Correspondingly, the parking space management device may receive the corresponding relationship entered by the parking space management personnel, and record the corresponding relationship.
目标车位可以是停车场任一车位，第一车牌号为目标车位绑定的车牌号(如目标车位所属用户的车牌号)。The target parking space can be any parking space in the parking lot, and the first license plate number is the license plate number bound to the target parking space (such as the license plate number of the user to which the target parking space belongs).
步骤202、识别目标车位上停放的目标车辆的第二车牌号。
在步骤202中，车位管理设备可以采集停放车辆的车牌图像，并从车牌图像中识别第二车牌号。In
可选地，目标车位附近设置有相机，车位管理设备与该相机连接。在步骤202中，车位管理设备可以控制相机采集该车牌图像。比如，车位管理设备可以控制相机采集目标车位的视频流，然后车位管理设备从该视频流中采集该车牌图像。之后，车位管理设备可以根据该车牌图像识别第二车牌号。比如，车位管理设备可以通过人工智能算法识别停放的目标车辆的第二车牌号。可选地，第二车牌号也可以是相机在识别得到该第二车牌号后发送给车位管理设备的，本申请实施例对此不作限定。Optionally, a camera is set near the target parking space, and the parking space management device is connected to the camera. In
目标车辆可能是目标车位所属用户的车辆，也可能不是该用户的车辆。第二车牌号可以是车牌图像识别正确的车牌号，也可以是因环境因素(如光线变化、物体遮挡等)导致车位管理设备识别错误的车牌号。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 may be a license plate number correctly recognized by the license plate image, or a license plate number incorrectly recognized by the parking space management device due to environmental factors (such as light changes, object occlusion, etc.).
比如，目标车辆的车牌号为“*L*****”，车位管理设备识别到的第二车牌号可以是“*L*****”(识别正确)，也可以是“*7*****”(识别错误)，其中“*”代表任意字符。For example, if the license plate number of the target vehicle is "*L*****", the second license plate number recognized by the parking space management device can be "*L*****" (identified correctly), or "*7 *****" (recognition error), where "*" represents any character.
需要说明的是，本申请实施例不对车位管理设备识别车牌号的时机进行限定。比如，车位管理设备可以在车辆驶入车位时识别车牌号，或者，车位管理设备也可以在车辆停放在车位后识别车牌号。It should be noted that the embodiment of the present application does not limit the timing when the parking space management device recognizes the license plate number. For example, the parking space management device can recognize the license plate number when the vehicle enters the parking space, or the parking space management device can also recognize the license plate number after the vehicle is parked in the parking space.
步骤203、判断告警条件是否满足，告警条件包括：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，其中，目标差异度阈值大于零。在告警条件满足时，执行步骤204；在告警条件不满足时，执行步骤206。
告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。当告警条件不满足时，车位管理设备会执行步骤206(也即禁止展示针对第二车牌号的告警信息)。假设第一车牌号为目标车位所属用户的车牌号，且目标车位所属用户的车辆停放在目标车位。如果是因环境因素导致车位管理设备识别到错误的第二车牌号，那么该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，故告警条件不满足，可以避免车位管理装置误告警。The alarm condition includes that the degree of difference between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold, and the target difference degree threshold is greater than zero. When the warning condition is not satisfied, the parking space management device will execute step 206 (that is, prohibit displaying the warning information for the second license plate number). It is assumed that the first license plate number is 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 in the target parking space. If the parking space management device recognizes the wrong second license plate number due to environmental factors, then the difference between the second license plate number and the first license plate number is generally less than the target difference threshold, so the alarm condition is not met, and the parking space management device can be avoided. False alarm.
可选地，车位管理设备可以根据字符串编辑距离来判断第一车牌号与第二车牌号的差异度是否大于或等于目标差异度阈值。示例地，在判断告警条件是否满足时，车位管理设备可以首先获取第一车牌号与第二车牌号的字符串编辑距离。在字符串编辑距离大于或等于字符串编辑距离阈值时，车位管理设备可以确定第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值。在字符串编辑距离小于字符串编辑距离阈值时，车位管理设备可以确定第一车牌号与第二车牌号的差异度小于目标差异度阈值。Optionally, the parking space management device may determine whether the degree of difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold according to the string edit distance. For example, when judging whether the warning condition is satisfied, the parking space management device may first acquire the string edit distance between the first license plate number and the second license plate number. When the string edit distance is greater than or equal to the string edit distance threshold, the parking space management device may determine that the degree of difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold. When the string edit distance is less than the 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 less than the target difference threshold.
可选地，车位管理设备可以定义等同字符组(即车牌识别时容易被混淆的字符)，并基于该等同字符组获取第一车牌号与第二车牌号的字符串编辑距离。比如，车位管理设备可以定义“8、B和3”为等同字符组。车位管理设备还可以不断更新(如添加、修改和/或删除)等同字符组。另外，本申请实施例不对等同字符组的数量进行限制。Optionally, the parking space management device may define an equivalent character group (that is, characters that are easily confused during license plate recognition), and obtain the string edit distance between the first license plate number and the second license plate number based on the equivalent character group. For example, the parking space management device may define "8, B and 3" as equivalent character groups. The parking space management device can also continuously update (such as add, modify and/or delete) the equivalent character group. In addition, the embodiment of the present application does not limit the number of equivalent character groups.
示例地，车位管理设备在基于等同字符组获取第一车牌号与第二车牌号的字符串编辑距离的过程中，可以在第二车牌号与第一车牌号相同时，确定字符串编辑距离为零。在第二车牌号与第一车牌号不同时，车位管理设备首先确定将第二车牌号修改为第一车牌号所需执行的至少一次字符修改操作；然后，车位管理设备将该至少一次字符修改操作对应的编辑距离之和确定为字符串编辑距离。其中，字符修改操作包括第一操作和第二操作中的至少一种操作，第一操作用于将等同字符组内的两个字符进行替换，第二操作与第一操作不同；第一操作对应的编辑距离小于第二操作对应的编辑距离。For example, in the process of obtaining the 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 string edit distance is zero. When the second license plate number is different from the first license plate number, the parking space management device first determines at least one character modification operation that needs to be performed to modify the second license plate number to the first license plate number; then, the parking space management device modifies the at least one character The sum of the edit distances corresponding to the operations is determined as the string edit distance. Wherein, the character modification operation includes at least one of the first operation and the second operation, the first operation is used to replace two characters in the equivalent character group, the second operation is different from the first operation; the first operation corresponds to The edit distance of is smaller than the edit distance corresponding to the second operation.
比如，设第一车牌号为目标车位所属用户的车牌号，字符串编辑距离阈值为2，目标车位绑定的第一车牌号为“*L*****”，“L”和“7”是等同字符组内的两个字符，第一操作的编辑距离是0.5，第二操作的编辑距离是1。根据识别的第二车牌号不同，有以下几种情况：For example, if the first license plate number is the license plate number of the user to whom the target parking space belongs, the string editing distance threshold is 2, and the first license plate number bound to the target parking space is "*L*****", "L" and "7 " are two characters in the equivalent character group, the edit distance of the first operation is 0.5, and the edit distance of the second operation is 1. Depending on the recognized second license plate number, there are the following situations:
(1)目标车辆为目标车位所属用户的车辆，车位管理设备识别的第二车牌号为“*L*****”，且该第二车牌号中任一次序的“*”代表的字符与第一车牌号中相同次序的“*”代表的字符相同。此时，第一车牌号与第二车牌号完全相同，即字符串编辑距离为0，该字符串编辑距离小于字符串编辑距离阈值2，告警条件不满足，车位管理设备执行步骤206(禁止展示该告警信息)。(1) The target vehicle is the vehicle of the user to which the target parking space belongs, the second license plate number recognized by the parking space management device is "*L*****", and the characters represented by "*" in any order in the second license plate number It is the same as the characters represented by "*" in the same order in the first license plate number. At this time, the first license plate number is exactly the same as the second license plate number, that is, the string edit distance is 0, the string edit distance is less than the string edit distance threshold 2, the alarm condition is not satisfied, and the parking space management device performs step 206 (display is prohibited the warning message).
(2)目标车辆为目标车位所属用户的车辆，车位管理设备识别的第二车牌号为“*7*****”，且该第二车牌号中任一次序的“*”代表的字符与第一车牌号中相同次序的“*”代表的字符相同。此时，第二车牌号只要执行一次字符替换操作就可以得到第一车牌号，且“L”和“7”是等同字符组内的两个字符。因此字符串编辑距离为0.5，该字符串编辑距离小于字符串编辑距离阈值2，告警条件不满足，车位管理设备执行步骤206(禁止展示该告警信息)。(2) The target vehicle is the vehicle of the user to which the target parking space belongs, the second license plate number recognized by the parking space management device is "*7*****", and the characters represented by "*" in any order in the second license plate number It is the same as the characters represented by "*" in the same order in the first license plate number. At this time, the first license plate number can be obtained by performing one character replacement operation for the second license plate number, and "L" and "7" are two characters in the equivalent character group. Therefore, the string editing distance is 0.5, and the string editing distance is smaller than the string editing distance threshold 2, and the warning condition is not satisfied, and the parking space management device executes step 206 (displaying the warning information is prohibited).
(3)目标车辆不是目标车位所属用户的车辆，该车辆的车牌号为“*B*****”，该车牌号中的任一次序的“*”代表的字符与第一车牌号中相同次序的“*”代表的字符不同。因此，无论识别到的第二车牌号是否正确，第二车牌号总是要经过2次以上的字符串编辑操作才能得到第一车牌。此时，字符串编辑距离(大于或等于2)大于或等于字符串编辑距离阈值2，告警条件满足，车位管理设备执行步骤204(即展示针对第二车牌号的告警信息)。(3) The target vehicle is not the vehicle of the user to which the target parking space belongs. The license plate number of the vehicle is "*B*****", and the characters represented by "*" in any order in the license plate number are the same as those in the first license plate number. The characters represented by "*" in the same order are different. Therefore, no matter whether the recognized second license plate number is correct or not, the second license plate number always needs more than 2 string editing operations to obtain the first license plate number. At this time, the string edit distance (greater than or equal to 2) is greater than or equal to the string edit distance threshold 2, the warning condition is met, and the parking space management device executes step 204 (that is, displays the warning information for the second license plate number).
步骤204、展示针对第二车牌号的告警信息。
示例地，车位管理装置可以包括显示屏、喇叭等用于告警的单元，车位管理装置可以利用这些用于告警的单元展示该告警信息。For example, the parking space management device may include display screens, horns and other warning units, and the parking space management device may use these warning units to display the warning information.
又示例地，车位管理设备包括告警器，告警器可以设置在目标车位附近，车位管理设备可以与告警器连接。在步骤204中，车位管理设备用于在告警条件满足时，控制告警器展示针对目标车牌号的告警信息。告警器可以是音箱、显示屏、警示灯(警示灯可以设置在相机上)等。In another example, the parking space management device includes an alarm, which can be set near the target parking space, and the parking space management device can be connected to the alarm. In
车位管理设备展示告警信息的方式多种多样，以下将以其中的几种方式为例进行讲解。There are various ways for the parking space management equipment to display the alarm information. The following will take several of them as examples to explain.
(1)在一种可选的方式中，车位管理设备在展示告警信息时采用语音播报的方式。示例地，以第二车牌号为“*B*****”为例。在确定第二车牌号满足告警条件后，车位管理设备可以控制音箱播报“请*B*****车主停止车位占用行为”的语音。(1) In an optional manner, the parking space management device adopts a voice broadcasting manner when displaying the warning information. As an example, take the second license plate number as "*B*****" as an example. After determining that the second license plate number satisfies the warning condition, the parking space management device can control the speaker to broadcast the voice of "Please *B***** car owner stop the parking space occupation behavior".
(2)在另一种可选的方式中，车位管理设备在展示告警信息时采用图像显示的方式。示例地，在确定第二车牌号满足告警条件后，车位管理设备控制显示屏可以显示内容包括：“请*B*****车主停止车位占用行为”的告警图像。(2) In another optional manner, the parking space management device adopts an image display manner when displaying the warning information. For example, after it is determined that the second license plate number satisfies the warning condition, the parking space management device can control the display screen to display a warning image including: "Please *B***** car owner to stop the behavior of occupying the parking space".
(3)在又一种可选的方式中，车位管理设备在展示告警信息时采用灯光提示的方式。示例地，在确定第二车牌号满足告警条件后，车位管理设备可以控制目标车位上安装的警示灯闪烁。(3) In yet another optional manner, the parking space management device adopts a light prompting manner when displaying the warning information. For example, after determining that the second license plate number satisfies the warning condition, the parking space management device may control the warning light installed on the target parking space to blink.
(4)在又一种可选的方式中，车位管理设备可以采用前述三种可选方式中的两种或三种方式。比如，车位管理设备在展示告警信息时采用语音播报和图像显示相结合的方式。示例地，以第二车牌号为“*B*****”为例。在确定第二车牌号满足告警条件后，车位管理设备可以控制音箱播报“请*B*****车主停止车位占用行为”的语音，以及可以控制显示屏显示内容包括：“请*B*****车主停止车位占用行为”的告警图像。(4) In yet another optional manner, the parking space management device may adopt two or three of the foregoing three optional manners. For example, the parking space management equipment uses a combination of voice broadcast and image display when displaying alarm information. As an example, take the second license plate number as "*B*****" as an example. After confirming that the second license plate number satisfies the alarm condition, the parking space management device can control the speaker to broadcast the voice of "Please *B***** car owners stop the parking space occupancy behavior", and can control the display to display content including: "Please *B* ****The car owner stops the parking space occupancy behavior" warning image.
可选地，车位管理设备在展示针对第二车牌号的告警信息的同时，通知车位管理人员到现场干预。比如，车位管理设备可以在控制告警器展示该告警信息的同时，在车位管理设备上显示该告警信息，和/或，向车位管理人员的用户设备(如手机等)发送目标车位的车位号和第二车牌号，以通知车位管理人员目标车辆对目标车位进行了占用。Optionally, the parking space management device notifies the parking space management personnel to intervene on site while displaying the warning information for the second license plate number. For example, the parking space management device can display the warning information on the parking space management device while controlling the alarm device to display the warning information, and/or send the parking space number and the number of the target parking space to the user equipment (such as a mobile phone, etc.) of the parking space management personnel. The second license plate number is used to inform the parking space management personnel that the target vehicle has occupied the target parking space.
步骤205、存储针对第二车牌号的告警信息，以及该告警信息的展示时间。
在告警条件满足时，车位管理设备可以展示针对第二车牌号的告警信息，以及存储该告警信息及其展示时间。When the warning condition is satisfied, the parking space management device can display the warning information for the second license plate number, and store the warning information and its display time.
需要说明的是，本申请实施例不对车位管理设备展示该告警信息和存储该告警信息及其展示时间的先后顺序进行限定。本申请实施例中以车位管理设备先展示该告警信息，再存储该告警信息及其展示时间为例。当然，车位管理设备也可以先存储该告警信息及其展示时间再展示该告警信息，或者，车位管理设备也可以同时存储该告警信息及其展示时间，以及展示该告警信息。It should be noted that the embodiment of the present application does not limit the order in which the parking space management device displays the warning information, stores the warning information and the display time. In the embodiment of the present application, the parking space management device first displays the warning information, and then stores the warning information and its display time as an example. Of course, the parking space management device can also store the warning information and its display time first and then display the warning information, or the parking space management device can also store the warning information and its display time, and display the warning information at the same time.
步骤206、禁止展示针对第二车牌号的告警信息。
综上所述，本申请实施例提供的车位管理方法中，告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。在目标车位绑定的第一车牌号是目标车位所属用户的车牌号时，即使车位管理设备识别到的第二车牌号错误，但由于在目标车位上停放的目标车辆是目标车位所属用户的车辆(具有第一车牌号)时，该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，因此，告警条件不满足，从而可以减少误告警。To sum up, in the parking space management method provided by the embodiment of the present application, the warning 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 number bound to the target parking space is the license plate number of the user to whom the target parking space belongs, even if the second license plate number recognized by the parking space management device is wrong, the target vehicle parked on the target parking space is the vehicle of the user to which the target parking space belongs. (with the first license plate number), the degree of difference between the second license plate number and the first license plate number is generally smaller than the target difference degree threshold, therefore, the alarm condition is not satisfied, thereby reducing false alarms.
以上内容中以告警条件包括：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值为例，可选地，该告警条件还可以包括其他条件。In the above content, the warning condition includes: 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 as an example. Optionally, the warning condition may also include other conditions.
示例地，告警条件还可以包括：当存在参考车牌号时，第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值。其中，参考车牌号属于当前时刻之前的目标时长内展示的告警信息所针对的车牌号。在这种情况下，车位管理设备在判断告警条件是否满足时，不仅需要判断第一车牌号与第二车牌号的差异度是否大于或等于目标差异度阈值，还需要判断是否存在参考车牌号，以及在存在参考车牌号时，判断第二车牌号与参考车牌号的差异度是否大于或等于辅助差异度阈值。For example, the warning condition may further include: when there is a reference license plate number, the degree of difference between the second license plate number and the reference license plate number is greater than or equal to an auxiliary difference degree threshold. Wherein, the reference license plate number belongs to the license plate number targeted by the warning information displayed within the target duration before the current moment. In this case, when the parking space management device judges whether the alarm condition is satisfied, it not only needs to judge whether the difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold, but also needs to judge whether there is a reference license plate number, And when there is a reference license plate number, it is judged whether the degree of difference between the second license plate number and the reference license plate number is greater than or equal to an auxiliary difference degree threshold.
在本申请实施例中，如果第二车牌号与参考车牌号的差异度小于辅助差异度阈值，那么车位管理设备可以认为第二车牌号与参考车牌号相同。如果存在参考车牌号，且第二车牌号与参考车牌号的差异度小于辅助差异度阈值，那么车位管理设备可以认为在目标时长内已经展示过针对第二车牌号的告警信息。此时，车位管理设备会执行步骤206(禁止展示该告警信息)，从而避免在目标时长内重复展示该告警信息。In the embodiment of the present 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 the second license plate number to be the same as the reference license plate number. If there is a reference license plate number, and the difference between the second license plate number and the reference license plate number is less than the auxiliary difference threshold, the parking space management device may consider that the warning message for the second license plate number has been displayed within the target duration. At this point, the parking space management device will execute step 206 (prohibit displaying the warning information), so as to avoid repeatedly displaying the warning information within the target duration.
比如，假设目标差异度阈值和辅助差异度阈值相同，且车位管理设备通过字符串编辑距离判断第一车牌号与第二车牌号的差异度是否大于或等于目标差异度阈值，以及第二车牌号与参考车牌号的差异度是否大于或等于辅助差异度阈值。设字符串编辑距离阈值为2，第一操作的编辑距离为0.5，第二操作的编辑距离是1，“8”和“B”是等同字符组内的两个字符。如果第一车牌号为“*L*****”，第二车牌号为“*8*****”，且该第二车牌号中任一次序的“*”代表的字符与第一车牌号中相同次序的“*”代表的字符不同。此时，第二车牌号和第一车牌号的目标差异度大于目标差异度阈值。但如果存在参考车牌号“*B*****”，且该参考车牌号中任一次序的“*”代表的字符与第二车牌号中相同次序的“*”代表的字符相同。那么第二车牌号只要执行一次等同字符组内的两个字符替换操作就可以得到参考车牌号，即第二车牌号与参考车牌号之间的字符串编辑距离为0.5，该字符串编辑距离小于辅助差异度阈值。因此，告警条件不满足，车位管理设备执行步骤206(禁止展示该告警信息)。For example, assume that the target difference threshold is the same as the auxiliary difference threshold, and the parking space management device judges 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, and the second license plate number Whether the difference with the reference license plate number is greater than or equal to the auxiliary difference threshold. Let the string edit distance threshold be 2, the edit distance of the first operation be 0.5, the edit distance of the second operation be 1, "8" and "B" are two characters in the equivalent character group. If the first license plate number is "*L*****", the second license plate number is "*8*****", and the characters represented by "*" in any order in the second license plate number are the same as the first license plate number The characters represented by "*" in the same order in a license plate number are different. 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. But if there is a reference license plate number "*B*****", and the characters represented by any sequence of "*" in the reference license plate number are the same as the characters represented by the same sequence of "*" in the second license plate number. Then the second license plate number only needs to perform a two-character replacement operation in the equivalent character group to obtain the reference license plate number, that is, the string edit distance between the second license plate number and the reference license plate number is 0.5, and the string edit distance is less than Auxiliary difference threshold. Therefore, the warning condition is not satisfied, and the parking space management device executes step 206 (displaying the warning information is prohibited).
参考车牌号属于当前时刻之前的目标时长内展示的告警信息所针对的车牌号。目标时长可以是任意时长，如30分钟、1小时或1天等。车位管理设备可以检测当前时刻之前的目标时长内是否展示过告警信息。如果当前时刻之前的目标时长内并未展示告警信息，则车位管理设备可以确定并不存在参考车牌号。如果当前时刻之前的目标时长内展示过告警信息，则车位管理设备需要确定该目标时长内展示的告警信息所针对的车牌号为参考车牌号。The reference license plate number belongs to the license plate number targeted by the warning information displayed within the target duration before the current moment. The target duration can be any duration, such as 30 minutes, 1 hour, or 1 day. The parking space management device can detect whether the warning information has been displayed within the target time period before the current moment. If no warning information is displayed within the target time period before the current moment, the parking space management device may determine that there is no reference license plate number. If the warning information has been displayed within the target time period before the current moment, the parking space management device needs to determine that the license plate number for which the warning information is displayed within the target time period is the reference license plate number.
可选地，车位管理设备可以对已展示过的告警信息及其展示时间进行存储。比如车位管理设备将这些信息存储在本地或存储在其他设备中。车位管理设备在检测当前时刻之前的目标时长内是否展示过告警信息时，可以获取存储的告警信息及其展示时间，并根据这些信息确定目标时长内是否展示过告警信息。比如，在上述步骤205中，车位管理设备可以在告警条件满足时，存储该告警信息及其展示时间。在后续判定是否需要展示其他车牌号的告警信息时，车位管理设备可以根据存储的第二车牌号的告警信息及展示时间，确定相应地参考车牌号。Optionally, the parking space management device may store the displayed warning information and its display time. For example, the parking space management device stores the information locally or in other devices. When the parking space management device detects whether the warning information has been displayed within the target time period before the current moment, it can obtain the stored warning information and its display time, and determine whether the warning information has been displayed within the target time period according to these information. For example, in the
需要说明的是，如果存在多个参考车牌号，那么车位管理设备需要判断第二车牌号与每个参考车牌号的差异度是否大于或等于辅助差异度阈值。在第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且第二车牌号与每个参考车牌号的差异度均大于或等于辅助差异度阈值时，车位管理设备才确定告警条件满足。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. Only when the difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold, and the difference between the second license plate number and each reference license plate number is greater than or equal to the auxiliary difference degree threshold, the parking space management device determines The alarm condition is met.
目标差异度阈值与辅助差异度阈值可以相同也可以不同，本申请实施例中以目标差异度阈值等于辅助差异度阈值为例。当目标差异度阈值与辅助差异度阈值不同时，辅助差异度阈值可以大于目标差异度阈值。辅助差异度阈值增大，允许第二车牌号与参考车牌号有更大的差异度，只要在辅助差异度阈值内，第二车牌号与参考车牌号仍被认为是同一辆车的车牌号，可以减少对参考车牌号的重复告警。The target difference degree threshold and the auxiliary difference degree threshold may be the same or different. In this embodiment of the application, the target difference degree threshold is equal to the auxiliary difference degree threshold as an example. When the target difference degree threshold is different from the auxiliary difference degree threshold, the auxiliary difference degree threshold may be greater than the target difference degree threshold. The auxiliary discrepancy threshold is increased, allowing a greater discrepancy between the second license plate number and the reference license plate number, as long as it is within the auxiliary discrepancy threshold, the second license plate number and the reference license plate number are still considered to be the same vehicle’s license plate number, It can reduce repeated alarms for the reference license plate number.
以上内容中以参考车牌号属于当前时刻之前的目标时长内展示的告警信息所针对的车牌号为例。可选地，参考车牌号还可以有其他特征，比如，目标时长内展示的针对参考车牌号的告警信息的个数大于或等于个数阈值(如2、3、4、5或6等)。在这种情况下，车位管理设备在确定在当前时刻之前的目标时长内展示过告警信息时，还需确定该目标时长内展示过的所有告警信息所针对的至少一个车牌号。之后，车位管理设备可以确定该至少一个车牌号中每个车牌号对应的告警信息个数，该告警信息个数为：该目标时长内展示过的针对该车牌号的告警信息的个数。在该至少一个车牌号中某一车牌号对应的告警信息个数大于或等于个数阈值时，车位管理设备可以确定该车牌号为参考车牌号。在该至少一个车牌号中某一车牌号对应的告警信息个数小于个数阈值时，车位管理设备可以确定该车牌号并不是参考车牌号。通过将告警信息个数大于或等于个数阈值的车牌号作为参考车牌号，可以在目标时长内将重复告警的次数保持在一定次数以内。In the above content, the reference license plate number belongs to the license plate number for which the warning information is displayed within the target time period before the current moment as an example. Optionally, the reference license plate number may also have other characteristics, for example, the number of warning messages for the reference license plate number displayed within the target duration is greater than or equal to the number threshold (such as 2, 3, 4, 5 or 6, etc.). In this case, when the parking space management device determines that the warning information has been displayed within the target time period before the current moment, it also needs to determine at least one license plate number targeted by all the warning information displayed within the target time period. Afterwards, 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 warning messages for the license plate number displayed within the target duration. When the number of warning information corresponding to a certain license plate number in the at least one license plate number is greater than or equal to the number threshold, the parking space management device may determine that the license plate number is a reference license plate number. When the number of warning information corresponding to a certain license plate number among the at least one license plate number is less than the number threshold, the parking space management device may determine that the license plate number is not a reference license plate number. By using the license plate number whose alarm information is greater than or equal to the number threshold as the reference license plate number, the number of repeated alarms can be kept within a certain number of times within the target duration.
比如，设告警信息个数阈值为2，车位管理设备在当前时刻之前的目标时长内展示过针对“*J*****”的一个告警信息，以及针对“*B*****”的两个告警信息。可见，车牌号“*J*****”对应的告警信息个数小于个数阈值，所以车牌号“*J*****”不是参考车牌号。车牌号“*B*****”对应的告警信息个数等于个数阈值，所以车牌号“*B*****”是参考车牌号。For example, if the threshold for the number of warning messages is 2, the parking space management device has displayed a warning message for "*J*****" and a warning message for "*B*****" within the target duration before the current moment. two warning messages. It can be seen that the number of alarm messages corresponding to the license plate number "*J*****" is less than the number threshold, so the license plate number "*J*****" is not a reference license plate number. The number of alarm messages corresponding to the license plate number "*B*****" is equal to the number threshold, so the license plate number "*B*****" is the reference license plate number.
上述实施例中告警条件可以包括两个条件。其中，第一个条件是：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值；第二个条件是：当存在参考车牌号时，第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值。车位管理设备在判断告警条件是否满足时，可以依次判断这两个条件是否满足。比如，车位管理设备先判断第一个条件是否满足，再判断第二个条件是否满足；或者，车位管理设备先判断第二个条件是否满足，再判断第一个条件是否满足。The alarm conditions in the above embodiments may include two conditions. Among them, the first condition is: the degree of difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold; the second condition is: when there is a reference license plate number, the difference between the second license plate number and the reference license plate number The difference degree is greater than or equal to the auxiliary difference degree threshold. When the parking space management device judges whether the alarm condition is met, it may sequentially judge whether the two conditions are met. For example, the parking space management device first judges whether the first condition is satisfied, and then judges whether the second condition is satisfied; or, the parking space management device first judges whether the second condition is satisfied, and then judges whether the first condition is satisfied.
示例地，当车位管理设备先判断第一个条件是否满足，再判断第二个条件是否满足时，车位管理设备可以先判断第一车牌号与第二车牌号的差异度是否大于或等于目标差异度阈值；在第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值时，车位管理设备判断是否存在参考车牌号；在存在参考车牌号时，车位管理设备判断第二车牌号与参考车牌号的差异度是否大于或等于辅助差异度阈值；在不存在参考车牌号，或第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值时，车位管理设备确定告警条件满足。在第一车牌号与第二车牌号的差异度小于目标差异度阈值，或者第二车牌号与参考车牌号的差异度小于辅助差异度阈值时，车位管理设备确定告警条件不满足。For example, when the parking space management device first judges whether the first condition is satisfied, and then judges whether the second condition is satisfied, the parking space management device can first judge whether the difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree 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, the parking space management device judges whether there is a reference license plate number; when there is a reference license plate number, the parking space management device judges the second license plate number Whether the difference with the reference license plate number is greater than or equal to the auxiliary difference threshold; when there is no reference license plate number, 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, the parking space management device determines the alarm condition satisfy. When the difference between the first license plate number and the second license plate number is less than the target difference degree threshold, or the difference between the second license plate number and the reference license plate number is less than the auxiliary difference degree threshold, the parking space management device determines that the alarm condition is not satisfied.
以下通过以图3所示的例子对本申请实施例提供的车位管理方法进行简单说明：The parking space management method provided by the embodiment of the present application is briefly described below by using the example shown in Figure 3:
车位管理设备首先识别第二车牌号。之后，车位管理设备计算字符串编辑距离1，并根据字符串编辑距离1判断是否符合条件1。其中，该字符串编辑距离1为第一车牌号与第二车牌号的字符串编辑距离。条件1包括：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，目标差异度阈值大于零。在条件1不符合时，车位管理设备不告警，也即车位管理设备不展示针对第二车牌号的告警信息。在条件1符合时，车位管理设备会进行进一步的判断。The parking space management device first recognizes the second license plate number. Afterwards, the parking space management device calculates the edit distance 1 of the character string, and judges whether the condition 1 is met according to the edit distance 1 of the character string. Wherein, the string edit distance 1 is the string edit distance between the first license plate number and the second license plate number. Condition 1 includes: the degree of difference between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold, and the target difference degree threshold is greater than zero. When condition 1 is not met, the parking space management device does not give an alarm, that is, the parking space management device does not display the warning information for the second license plate number. When condition 1 is met, the parking space management device will make a further judgment.
车位管理设备在进行上述进一步的判断时，可以读取最近一段时间的告警记录(包括目标时长内展示过的告警信息)。在根据该记录确定存在参考车牌号时，车位管理设备获取参考车牌号，并计算字符串编辑距离2，以及根据字符串编辑距离2判断是否符合条件2。其中，该字符串编辑距离2为第二车牌号与参考车牌号的字符串编辑距离。条件2包括：第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值，辅助差异度阈值大于零。在条件2不符合时，车位管理设备不告警，也即不展示针对第二车牌号的告警信息。在条件2符合时，车位管理设备产生新告警(也即展示针对第二车牌号的告警信息)，并存储该告警信息及其展示时间。When the parking space management device performs the above further judgment, it can read the alarm record (including the alarm information displayed within the target time period) in the latest period. When it is determined according to the record that there is a reference license plate number, the parking space management device obtains the reference license plate number, calculates the edit distance 2 of the string, and judges whether the condition 2 is met according to the edit distance 2 of the string. Wherein, the string edit distance 2 is the string edit distance between the second license plate number and the reference license plate number. Condition 2 includes: the difference between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference threshold, and the auxiliary difference threshold is greater than zero. When condition 2 is not met, the parking space management device does not give an alarm, that is, does not display the alarm information for the second license plate number. When condition 2 is met, the parking space management device generates a new warning (that is, displays warning information for the second license plate number), and stores the warning information and its display time.
本申请实施例提供了一种车位管理设备，如图4所示，该车位管理设备可以包括：The embodiment of the present application provides a parking space management device, as shown in Figure 4, the parking space management device may include:
第一获取模块401，用于获取目标车位绑定的第一车牌号；The first obtaining module 401 is used to obtain the first license plate number bound to the target parking space;
识别模块402，用于识别目标车位上停放的目标车辆的第二车牌号；Identification module 402, for identifying the second license plate number of the target vehicle parked on the target parking space;
展示模块403，用于在告警条件满足时，展示针对第二车牌号的告警信息；A display module 403, configured to display the warning information for the second license plate number when the warning condition is satisfied;
禁止展示模块404，用于在告警条件不满足时，禁止展示针对第二车牌号的告警信息；Prohibition display module 404, configured to prohibit the display of the warning information for the second license plate number when the warning condition is not met;
其中，告警条件包括：第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，目标差异度阈值大于零。Wherein, the alarm condition includes: the degree of difference between the first license plate number and the second license plate number is greater than or equal to a target difference degree threshold, and the target difference degree threshold is greater than zero.
综上所述，本申请实施例提供了一种车位管理设备，由于告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。在目标车位绑定的第一车牌号是目标车位所属用户的车牌号时，即使车位管理设备识别到的第二车牌号错误，但由于在目标车位上停放的目标车辆是目标车位所属用户的车辆(具有第一车牌号)时，该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，因此，告警条件不满足，禁止展示模块禁止展示针对第二车牌号的告警信息，从而可以减少误告警。To sum up, the embodiment of the present application provides a parking space management device, since 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 number bound to the target parking space is the license plate number of the user to whom the target parking space belongs, even if the second license plate number recognized by the parking space management device is wrong, the target vehicle parked on the target parking space is the vehicle of the user to which the target parking space belongs. (with the first license plate number), the degree of difference between the second license plate number and the first license plate number is generally less than the target difference degree threshold, therefore, the warning condition is not satisfied, and the display prohibition module prohibits displaying the warning information for the second license plate number, Thereby, false alarms can be reduced.
可选地，车位管理设备还包括：Optionally, the parking space management equipment also includes:
第二获取模块(图4中未示出)，用于获取第一车牌号与第二车牌号的字符串编辑距离；The second obtaining module (not shown in Fig. 4), is used for obtaining the character string editing distance of the first license plate number and the second license plate number;
第一确定模块(图4中未示出)，用于在字符串编辑距离大于或等于字符串编辑距离阈值时，确定第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值。The first determination module (not shown in FIG. 4 ) is used to 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 degree threshold when the string edit distance is greater than or equal to the string edit distance threshold .
可选地，第二获取模块用于：Optionally, the second acquisition module is used for:
在第二车牌号与第一车牌号不同时，确定将第二车牌号修改为第一车牌号所需执行的至少一次字符修改操作；When the second license plate number is different from the first license plate number, determine at least one character modification operation that needs to be performed to modify the second license plate number to the first license plate number;
将至少一次字符修改操作对应的编辑距离之和确定为字符串编辑距离；Determining the sum of the edit distances corresponding to at least one character modification operation as the string edit distance;
其中，字符修改操作包括第一操作和第二操作中的至少一种操作，第一操作用于将等同字符组内的两个字符进行替换，第二操作与第一操作不同；第一操作对应的编辑距离小于第二操作对应的编辑距离。Wherein, the character modification operation includes at least one of the first operation and the second operation, the first operation is used to replace two characters in the equivalent character group, the second operation is different from the first operation; the first operation corresponds to The edit distance of is smaller than the edit distance corresponding to the second operation.
可选地，车位管理设备的告警条件还包括：Optionally, the warning conditions of the parking space management equipment also include:
当存在参考车牌号时，第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值；When there is a reference license plate number, the difference between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference threshold;
其中，参考车牌号属于当前时刻之前的目标时长内展示的告警信息所针对的车牌号。Wherein, the reference license plate number belongs to the license plate number targeted by the warning information displayed within the target duration before the current moment.
可选地，车位管理设备还包括：Optionally, the parking space management equipment also includes:
第一判断模块(图4中未示出)，用于判断第一车牌号与第二车牌号的差异度是否大于或等于目标差异度阈值；The first judging module (not shown in Fig. 4), is used for judging whether the degree of difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold;
第二判断模块(图4中未示出)，用于在第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值时，判断是否存在参考车牌号；The second judging module (not shown in Fig. 4) is used for judging whether there is a reference license plate number when the degree of difference between the first license plate number and the second license plate number is greater than or equal to the target difference degree threshold;
第三判断模块(图4中未示出)，用于在存在参考车牌号时，判断第二车牌号与参考车牌号的差异度是否大于或等于辅助差异度阈值；The third judging module (not shown in Fig. 4) is used to determine whether the degree of difference between the second license plate number and the reference license plate number is greater than or equal to the auxiliary difference degree threshold when there is a reference license plate number;
第二确定模块(图4中未示出)，用于在不存在参考车牌号，或第二车牌号与参考车牌号的差异度大于或等于辅助差异度阈值时，确定告警条件满足。The second determining module (not shown in FIG. 4 ) is configured to determine that the warning condition is met when there is no reference plate number, or the difference between the second plate number and the reference plate number is greater than or equal to the auxiliary difference threshold.
可选地，车位管理设备在目标时长内展示的针对参考车牌号的告警信息的个数大于或等于个数阈值。Optionally, the number of warning messages for the reference license plate number displayed by the parking space management device within the target duration is greater than or equal to the number threshold.
可选地，车位管理设备还包括：Optionally, the parking space management equipment also includes:
存储模块(图4中未示出)，用于在告警条件满足时，存储针对第二车牌号的告警信息，以及针对第二车牌号的告警信息的展示时间。The storage module (not shown in FIG. 4 ) is configured to store the warning information for the second license plate number and the display time of the warning information for the second license plate number when the alarm condition is met.
综上所述，本申请实施例提供了一种车位管理设备，由于告警条件包括第一车牌号与第二车牌号的差异度大于或等于目标差异度阈值，且目标差异度阈值大于零。在目标车位绑定的第一车牌号是目标车位所属用户的车牌号时，即使车位管理设备识别到的第二车牌号错误，但由于在目标车位上停放的目标车辆是目标车位所属用户的车辆(具有第一车牌号)时，该第二车牌号与第一车牌号的差异度一般小于目标差异度阈值，因此，告警条件不满足，禁止展示模块禁止展示针对第二车牌号的告警信息，从而可以减少误告警。To sum up, the embodiment of the present application provides a parking space management device, since 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 number bound to the target parking space is the license plate number of the user to whom the target parking space belongs, even if the second license plate number recognized by the parking space management device is wrong, the target vehicle parked on the target parking space is the vehicle of the user to which the target parking space belongs. (with the first license plate number), the degree of difference between the second license plate number and the first license plate number is generally less than the target difference degree threshold, therefore, the warning condition is not satisfied, and the display prohibition module prohibits displaying the warning information for the second license plate number, Thereby, false alarms can be reduced.
本申请实施例提供了另一种车位管理设备，该车位管理设备可以包括处理器，处理器用于执行本申请实施例提供的车位管理方法，如图1或图2所示的车位管理方法。The embodiment of the present application provides another parking space management device. The parking space management device may include a processor 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 .
可选地，该车位管理设备还可以包括存储器，存储器上存储有计算机程序，该处理器在加载并执行该计算机程序时实现如上述实施例提供的车位管理方法，例如图1或图2所示的方法。Optionally, the parking space management device may also include a memory on which a computer program is stored, and when the processor loads and executes the computer program, it realizes the parking space management method provided in the above-mentioned embodiments, as shown in FIG. 1 or FIG. 2 Methods.
本申请实施例提供了一种车位管理系统，如图5所示，该车位管理系统包括：车位管理设备501。该车位管理设备可以是本申请实施例提供的任一种车位管理设备，如图4所示的车位管理设备。An embodiment of the present application provides a parking space management system. As shown in FIG. 5 , the parking space management system includes: a parking space management device 501 . The parking space management device may be any parking space management device provided in the embodiments of the present application, such as the parking space management device shown in FIG. 4 .
可选地，如图5所示，该车位管理系统还包括：告警器502；车位管理设备501用于在告警条件满足时，控制告警器502展示针对第二车牌号的告警信息。Optionally, as shown in FIG. 5 , the parking space management system further includes: an alarm 502 ; the parking space management device 501 is configured to control the alarm 502 to display alarm information for the second license plate number when the alarm condition is met.
可选地，如图5所示，车位管理设备还包括：相机503；车位管理设备501用于：控制相机503采集目标车辆的车牌图像，并根据车牌图像识别第二车牌号。Optionally, as shown in FIG. 5 , the parking space management device further includes: a camera 503; the parking space management device 501 is configured to: control the camera 503 to collect the license plate image of the target vehicle, and recognize the second license plate number according to the license plate image.
车位管理系统还可以包括其他设备，本申请实施例对此不作限定。The parking space management system may also include other devices, which are not limited in this embodiment of the present application.
本申请实施例提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，该计算机程序由处理器加载并执行以上述实施例提供的车位管理方法，例如图1或图2所示的方法。An embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded by a processor and executes the parking space management method provided in the above-mentioned embodiment, such as FIG. 1 or FIG. 2 shows the method.
本申请实施例还提供了一种包含指令的计算机程序产品，当计算机程序产品在计算机上运行时，使得计算机执行上述方法实施例提供的车位管理方法，例如图1或图2所示的方法。The embodiment of the present application also provides a computer program product containing instructions. When the computer program product is run on a computer, the computer executes the parking space management method provided by the above method embodiment, for example, the method shown in FIG. 1 or FIG. 2 .
本申请中，“至少一个”指的是一个或多个，“多个”指的是两个或两个以上。本发明中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。在本公开中，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。In this application, "at least one" means one or more, and "multiple" means two or more. The term "and/or" in the present invention is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and A and B exist independently. There are three cases of B. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship. In the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
需要说明的是，本发明实施例提供的方法实施例能够与相应的设备实施例相互参考，本发明实施例对此不做限定。本发明实施例提供的方法实施例步骤的先后顺序能够进行适当调整，步骤也能够根据情况进行相应增减，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本发明的保护范围之内，因此不再赘述。It should be noted that the method embodiment provided in the embodiment of the present invention can refer to the corresponding device embodiment, which is not limited in the embodiment of the present invention. The order of the steps in the method embodiments provided by the embodiments of the present invention can be appropriately adjusted, and the steps can also be increased or decreased according to the situation. Any person familiar with the technical field can easily think of changes within the technical scope disclosed in the present invention. Methods should all be covered within the protection scope of the present invention, and thus will not be repeated here.
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。The above are only exemplary embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.
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