WO2020172954A1 - 一种基于定位数据的生活圈识别方法 - Google Patents
一种基于定位数据的生活圈识别方法 Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the invention belongs to the technical field of urban planning, and particularly relates to a method for identifying a living circle based on positioning data.
- the living circle determines the urban facility space allocation and the shaping of the quality of life.
- the existing methods of defining the scope of the living circle at home and abroad mainly define the living circle in terms of time distance, spatial distance or function.
- the analysis method of defining the living circle by time distance mainly delimits the boundary of the urban living circle by calculating "15-minute walking distance", "one-hour commuting circle", etc.; defined by spatial distance
- the living circle of Shanghai mainly uses the "800m walking distance” to determine the reachable space boundary to form the range of the living circle; while the living circle defined by function determines the boundary of the living circle by calculating the distance of major facilities.
- the above three types of life circle delineation methods all have certain limitations, and more people use subjective feelings and experience to determine the life circle. First of all, in the purely dividing method by traffic time, the continuous movement behavior does not conform to the characteristics of the actual crowd activities.
- This method lacks consideration of the real behavior of people in life; through the pure spatial distance dividing method, by judging the short-term walking The farthest distance ignores the behavioral characteristics of specific individuals and blurs the differences between crowd activities.
- the analysis of the level of the living circle only at the level of the city range does not incorporate the actual use of the population.
- the current life circle identification methods are more subjectively defined methods or small-scale real representation methods, lacking the true restoration of the urban-scale population's living area, and failing to integrate with the current multi-source big data application.
- the present invention proposes a living circle identification method based on positioning data, aiming at the problem of simply making a circle with the place of residence or work in the existing living circle, ignoring the real situation of the crowd, and identifying the crowd with positioning data
- the behavior of people is integrated with the behavior points within the daily walking range to get the real living and working life circle of the crowd.
- the technical solution adopted by the present invention is: a method for identifying a living circle based on positioning data.
- the method includes the following steps:
- step 2 Identify the behavior points of the effective positioning data file obtained in step 1, and divide the different behavior characteristics of the behavior points according to the duration of the behavior points in a specific time period: including residential behavior point M, work behavior point N, and life Behavior point set P.
- step (1) includes:
- the data collection time is every 5 minutes.
- the data content includes the user number, the user's location update date and time, and the user's real-time latitude and longitude coordinates.
- Positioning data can be obtained through mobile phone operators, or through GPS data collection.
- the anonymous location data number is the user identification number after desensitization, and does not involve the user's private information.
- the data collection time interval can be set freely in actual work.
- the standard format of positioning data is as follows:
- step (2) includes:
- (2.2) points to sort all tracks in time series trajectory point O n determines which path point O n + 1 from the track point O n is less than S m, such as less than S m, is as O n a Adjacent points; continue the above operations, continue to judge, to the track point O n+m , if the distance from the track point O n is greater than or equal to the threshold S meters, the search stops; calculate the track point O n+m and the track point O n time intervals, such as greater than or equal to the duration T 1 minute, the recording track of all points to O n O n + m-1; such duration is less than T 1 minute, to O n O n + m-1 is not satisfied Request, the result is invalid; go to the next track point, that is, start at track point O n+1 , repeat the above steps;
- step 2.1.2 Cluster all trajectory points O n to On +m-1 obtained in step 2.1.2 to generate behavior points, where the latitude and longitude of the behavior point is the mean value of all trajectory points O n to O n+m-1 , The time t n when the track point O n is located is the start time of the action point, and the time t n+m-1 when the track point O n+m-1 is located is the end time of the action point;
- step (2.5) Determine in turn whether the interval between the start time and end time of the action points obtained in step (2.4) has an intersection with the interval 23:00-05:00, record the above-mentioned intersection action points to form a set A1, and calculate the A1
- the behavior point with the maximum time difference between the end time and the start time of the behavior point is regarded as the residence behavior point M;
- step (2.6) Determine in turn whether the start time and end time of the behavior points obtained in step (2.4) have an intersection with the 08:00-17:00 interval, record the above-mentioned intersection behavior points to form a set A2, and calculate the behavior points in A2
- the action point with the maximum time difference between the end time and the start time of is regarded as the work action point N;
- step (3) includes:
- step (2) Load the behavior point file obtained in step (2) into ArcGIS software in layers to form three layers: residential behavior point M, work behavior point N, and life behavior point set P.
- step (4) includes:
- the living area of each object in the residential area can be combined to obtain the living area of all objects in the residential area; the working and living area of each object in the office area can be combined to obtain a specific The working life circle area of all objects in the office area.
- the present invention uses positioning data to identify effective behaviors of the crowd through algorithms and rules, and obtains the actual residential behavior points, work behavior points and life behavior points of the crowd. Taking the walking distance in a specific area within a specific time as the radius of the life circle, extract the life behavior points within the radius of the life circle from the residence behavior point and the work behavior point respectively, as the residence life behavior point and work life behavior point.
- the minimum boundary geometric area for generating living behavior points and living life behavior points is the living life circle
- the minimum boundary geometric area for generating working behavior points and work life behavior points is the working life circle.
- the present invention makes full use of positioning data to accurately locate the crowd
- the real living or working life circle is more scientific and objective than the circle in the traditional sense, providing a scientific basis for the analysis and construction of the living or working life circle planning.
- FIG. 1 Schematic diagram of behavior point recognition method
- Fig. 3 is a schematic diagram of the living space of the present invention.
- Fig. 4 is a schematic diagram of the working and living circle space of the present invention.
- Figure 5 The application of the present invention in the living circle of a user in the Zhima Village residential area in Xinjiekou area, Nanjing;
- Fig. 6 The application of the present invention in the residential living circle of Zhima Village, Xinjiekou, Nanjing.
- EXCEL software to preprocess the anonymous mobile phone location data CSV file, where the anonymous mobile phone location data CSV file is obtained from the mobile phone information push service provider, including the user number, the date, time, and latitude and longitude coordinate information of the user's location update; and , Or use GPS positioning equipment to collect positioning data files;
- the specific steps for obtaining the mobile phone location data of anonymous users through the mobile phone information push service provider are as follows: Obtain the mobile phone location data of all users in Nanjing on November 11, 2017 through the mobile phone information push service provider.
- the data collection time is every 5 minutes.
- the collection time interval can be preset according to actual needs.
- the data content includes user ID, user location update date and time, user real-time latitude and longitude coordinates, a total of 2.321 billion pieces of collected data.
- the specific data format requirements are shown in Table 1, including desensitized data.
- the user's mobile phone location data number is the desensitized mobile phone identification number, which does not involve the user's private information.
- the distance threshold S is 50 meters
- the shortest time interval T 1 threshold is 15 minutes.
- the 50 meters and 15 minutes in this example are just examples, and different values can be set according to actual needs;
- (2.2) points to sort all tracks in time series trajectory point O n, determines which path point O n + 1 from the track point O n is less than 50 m, such as less than 50 meters, then as O n a Adjacent points; continue the above operations, continue to judge, to the track point O n+m , if the distance from the track point O n is greater than or equal to the threshold 50 meters, the search stops; calculate the track point O n+m and the track point O n time intervals, as a duration greater than or equal to 15 minutes, all the recording track point to O n O n + m-1; such a duration less than 15 minutes, to O n O n + m-1 does not meet the requirements, The result is invalid; go to the next trajectory point, starting from the trajectory point O n+1 , repeat the above steps until a point that meets the conditions is found, go to step (2.3).
- (2.3) Cluster all track points O n to O n+m-1 obtained in step 2.2 to generate behavior points.
- the latitude and longitude of the behavior point is the mean value of the latitude and longitude of all the trajectory points O n to On +m-1
- the time t n when the trajectory point O n is located is the start time of the behavior point
- the trajectory point O n+m-1 The time t n+m-1 when it is located is the end time of the action point;
- step (2.5) Determine in turn whether the interval between the start time and the end time of the action point obtained in step (2.4) has an intersection with the interval 23:00-05:00, record all the above-mentioned intersection action points to form a set A1, and calculate A1
- the behavior point with the maximum time difference between the end time and the start time of the behavior point is taken as the residence behavior point M;
- step (2.6) Determine in turn whether the interval between the start time and end time of the action point obtained in step (2.4) has an intersection with the interval 08:00-17:00, record all the above-mentioned intersection action points to form a set A2, and calculate A2
- the behavior point with the maximum time difference between the end time and the start time of the behavior point is regarded as the work behavior point N;
- the measured D value is 1.5 km, and the life behavior point set Q within 1.5 km from the residential behavior point is extracted.
- the target layer is the life behavior point set P layer of user 00069f1927ee5cef9919335d75170d3
- the source layer is circle M
- the spatial selection method of the layer and target layer features is "completely located within the range of the source layer features”.
- the exported layer is an SHP file of the "living life behavior point set Q”.
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Abstract
Description
Claims (9)
- 一种基于定位数据的生活圈识别方法,其特征在于,该方法包括以下步骤:(1)获取用户的定位数据文件,并对定位数据文件进行预处理;(2)对步骤(1)得到的有效定位数据进行行为点识别,并将行为点划分为居住行为点M、工作行为点N和生活行为点集P;(3)设置生活圈半径D值,提取距居住行为点M距离小于D值的生活行为点,形成居住生活行为点集Q;和/或,提取距工作行为点N距离小于D值的生活行为点,形成工作生活行为点集S;(4)提取点M和点集Q形成最小边界几何面域,获取用户的居住生活圈面域Y,和/或提取点N和点集S形成最小边界几何面域,获取用户的工作生活圈面域L。
- 根据权利要求1或2所述的一种基于定位数据的生活圈识别方法,其特征在于,所述定位数据文件包括用户编号,用户位置更新的日期,时间和经纬度坐标信息。
- 根据权利要求1或2所述的一种基于定位数据的生活圈识别方法,其特征在于,步骤(1)获取用户的定位数据文件方法如下:定位数据文件可从手机信息推送服务商处获取脱敏的定位数据,或通过GPS定位仪器搜集获取GPS定位数据。
- 根据权利要求1或2所述的一种基于定位数据的生活圈识别方法,其特征在于,所述步骤(1)对定位数据文件进行预处理的方法如下:在EXCEL软件中,使用查找和选择功能内的定位选项,选择并删除缺失用户编号和经纬度信息的数据;使用删除重复项命令,选择并删除重复用户编号的数据;使用数字筛选命令,选择并删除日期或者经纬度不在预设正常值范围内的异常数据。
- 根据权利要求1或2所述的一种基于定位数据的生活圈识别方法,其特征在于,对步骤(2)得到的定位数据文件进行行为点识别,并将行为点划分为居住行为点M、工作行为点N和生活行为点集P的方法如下:(2.1)定义距离阈值和最短时间间隔阈值,设距离阈值为S米,最短时间间隔阈值为T 1分钟;(2.2)对定位数据中所有轨迹点按照时间序列排序,对轨迹点O n,判断其下一个轨迹点O n+1与轨迹点O n的距离是否小于S米,如小于S米,则作为O n的相邻点;持续以上操作,继续判断,至轨迹点O n+m,若其与轨迹点O n的距离大于或等于阈值S米,即搜索停止;计算轨迹点O n+m和轨迹点O n的时间间隔,如持续时间大于或等于预设时间T 1,则记录所有轨迹点O n到O n+m-1;如持续时间小于T 1,则O n到O n+m-1不满足要求,结果无效;转至下一个轨迹点,即轨迹点O n+1开始,重复以上步骤,直到找到符合条件的点,转到 步骤(2.3);(2.3)将步骤(2.2)得到的所有轨迹点O n到O n+m-1聚类,生成行为点,其中行为点的经纬度为所有轨迹点O n到O n+m-1经纬度的均值,轨迹点O n被定位的时间t n为行为点的开始时间,轨迹点O n+m-1被定位时的时间t n+m-1作为行为点的结束时间;(2.4)从轨迹点O n+m开始,重复步骤2.2与步骤2.3,遍历所有轨迹点,识别出所有的行为点;(2.5)依次判断步骤(2.4)得到的行为点的开始时间和结束时间的区间是否与23:00-05:00区间有交集,记录上述所有有交集的行为点形成集合A1,并选择A1中的行为点的结束时间与开始时间的时间差最大值的行为点,作为居住行为点M;(2.6)依次判断步骤(2.4)得到的行为点的开始时间和结束时间是否与08:00-17:00区间有交集,记录上述所有有交集的行为点形成集合A2,并选择A2中的行为点的结束时间与开始时间的时间差最大值的行为点,作为工作行为点N;(2.7)所有行为点文件中,剔除居住行为点M以及工作行为点N,得到生活行为点集P={p1,p2,p3,……,pn}。
- 根据权利要求5所述的一种基于定位数据的生活圈识别方法,其特征在于,步骤(3)中,提取距居住行为点M和工作行为点N距离小于D值的生活行为点,并形成居住生活行为点集Q和工作生活行为点集S的具体方法如下:(3.1)将步骤(2.5)-(2.7)得到的行为点文件,分图层加载到ArcGIS软件中,形成居住行为点M、工作行为点N、生活行为点集P三个图层;(3.2)在ArcGIS软件中,以点M和点N为圆心,画半径为D的圆形,为圆M图层和圆N图层;(3.3)在ArcGIS软件中,提取落在圆M图层范围内的生活行为点集P中的点,导出图层为居住生活行为点集Q的SHP文件;(3.4)在ArcGIS软件中,提取落在圆N图层范围内的生活行为点集P中的点,导出图层为工作生活行为点集S的SHP文件。
- 根据权利要求6述的一种基于定位数据的生活圈识别方法,其特征在于,步骤(4)中,提取点M和点集Q形成最小边界几何面域,获取用户的居住生活圈面域Y的具体步骤如下:(4.1)在ArcGIS软件中,将点M和点集Q合并,得到点集X;(4.2)在ArcGIS软件中,使用“最小边界几何”命令,在输入要素中,输入点集 X,在地理选项中,选择“凸包(CONVEX HULL)”,输出面域Y,所形成的面域范围即为目标对象的居住生活圈范围。
- 根据权利要求6述的一种基于定位数据的生活圈识别方法,其特征在于,步骤(4)中,提取点N和点集S形成最小边界几何面域,获取用户的工作生活圈面域L的具体步骤如下:(4.3)在ArcGIS软件中,将点N和点集S合并,得到点集K;(4.4)在ArcGIS软件中,使用“最小边界几何”命令,在输入要素中,输入点集K,在地理选项中,选择“凸包(CONVEX HULL)”,输出面域L,所形成的面域范围即为目标对象的工作生活圈范围。
- 根据权利要求6或7所述的一种基于定位数据的生活圈识别方法,其特征在于,将居住区内每个对象的居住生活圈面域合并,即得到居住区所有对象的居住生活圈面域;将办公区每个对象的工作生活圈面域合并,即得到办公区所有对象的工作生活圈面域。
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| CN113298301A (zh) * | 2021-05-17 | 2021-08-24 | 东南大学 | 一种基于人群数字画像的城市服务设施评价及优化方法 |
| CN113298301B (zh) * | 2021-05-17 | 2024-04-30 | 东南大学 | 一种基于人群数字画像的城市服务设施评价及优化方法 |
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| CN115687549A (zh) * | 2022-09-28 | 2023-02-03 | 广州市城市规划设计有限公司 | 一种快速高效的生活圈划定方法、装置、设备及介质 |
| CN115687549B (zh) * | 2022-09-28 | 2024-04-02 | 广州市城市规划设计有限公司 | 一种快速高效的生活圈划定方法、装置、设备及介质 |
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| CN119130200A (zh) * | 2024-11-08 | 2024-12-13 | 北京市城市规划设计研究院 | 游憩设施选址方法、装置、设备及介质 |
| CN120180637A (zh) * | 2025-03-12 | 2025-06-20 | 自然资源部国土空间规划研究中心 | 一种社区生活圈划定方法、装置、设备及介质 |
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| CN110032609A (zh) | 2019-07-19 |
| CN110032609B (zh) | 2023-09-12 |
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