Electronic fence dividing method and system for work of sanitation workers

Abstract

The invention discloses an electronic fence division method and system for sanitation worker work, and the method comprises the steps: S1, enabling a fence division system to obtain a work map of a sanitation worker whose electronic fence is to be divided, and then obtaining the geographic data in the work map; s2, dividing a plurality of first working areas from the working map by the fence dividing system according to the geographic data of the working map, and presenting the first working areas in the working map; s3, the fence dividing system receives the area adjusting instruction, and then the fence dividing system adjusts the first working area according to the area adjusting instruction to obtain a second working area; and S4, the fence division system obtains the boundary of the second working area, and then generates an electronic fence for the work of the sanitation worker based on the boundary of the second working area through a positioning technology. The fence dividing system divides the electronic fences according to the geographic data of the working map of the sanitation worker, so that the areas needing to be cleaned are the same, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of sanitation technology, and in particular to an electronic fence division method and system for sanitation workers. Background Art

[0002] In a large urban environment, in order to improve cleaning efficiency, the city is divided into different work areas, and then sanitation workers are divided into groups to clean different work areas. The existing work area division method mainly divides a rectangular area of ​​a set area in the city map as a work area. However, the urban environment is changeable, and the workload of work areas in different environments is different, such as roads, parks or residential areas, etc. If the work area is directly divided by rectangles, the sanitation work will be distributed unfairly, resulting in low overall cleaning efficiency. Summary of the invention

[0003] In order to solve the problem that the existing work area division is not flexible enough, the present invention provides an electronic fence division method and system for sanitation workers. The specific technical solution of the present invention is as follows: A method for dividing an electronic fence for sanitation workers, the method comprising the following steps: S1: a fence dividing system obtains a work map of the sanitation workers to be divided into electronic fences, and then obtains geographic data in the work map; S2: the fence dividing system divides a plurality of first work areas from the work map according to the geographic data of the work map, and presents the first work areas in the work map; S3: the fence dividing system receives an area adjustment instruction, and then the fence dividing system adjusts the first work area according to the area adjustment instruction to obtain a second work area; S4: the fence dividing system obtains a boundary of the second work area, and then generates an electronic fence for the sanitation workers based on the boundary of the second work area through positioning technology.

[0004] Furthermore, in step S1, the fence division system obtains geographic data in the working map, including the following steps: the fence division system obtains the city map in advance through the map service software or the city management system; the fence division system recognizes the names of the cleaning places on the city map through text; the fence division system obtains the names of the cleaning places on the city map or the line segments on both sides of the names of the cleaning places through an algorithm; wherein the cleaning places include but are not limited to streets, rivers, bridges and parks.

[0005] Further, in step S2, the fence division system divides a number of first working areas from the working map according to the geographic data of the working map, including the following steps: the fence division system obtains the line segment surrounding the name of the cleaning place through the Hough transform algorithm, and the fence division system sets the line segment with a set distance from the name of the cleaning place as the line segments located on both sides of the name of the cleaning place; the fence division system constructs a preliminary area with the line segments surrounding the name of the cleaning place or located on both sides of the name of the cleaning place as the boundary; the fence division system obtains the area of ​​the preliminary area, and then compares the area of ​​the preliminary area. If the area of ​​the preliminary area is less than the first set area and greater than the second set area, the preliminary area is used as the first set area; if the area of ​​the preliminary area is greater than or equal to the first set area or less than or equal to the second set area, the preliminary area is adjusted, and then the adjusted preliminary area is used as the first working area.

[0006] Furthermore, the fence division system constructs a preliminary area with line segments as boundaries, including the following steps: the fence division system randomly selects a name from the names of the cleaning places, and if the name of the cleaning place is surrounded by line segments to form a line segment circle, the area of ​​the line segment circle is calculated, and the line segment circle with the largest area is used as the preliminary area; or, the fence division system randomly selects a name from the names of the cleaning places, and if the name of the cleaning place is not surrounded by line segments, the longest line segment is selected from the line segments on both sides of the name of the cleaning place as the boundary, and then the line segments parallel to the longest line segment and located on both sides of the name of the cleaning place with the longest line segment are selected as another boundary, and then a rectangular area is constructed through these two boundaries as the preliminary area.

[0007] Furthermore, the fence division system adjusts the preliminary area, including the following steps: if the fence division system uses the line segment circle surrounding the name of the cleaning place as the preliminary area, then when the preliminary area is greater than or equal to the first set area, the fence division system selects a line segment circle with a smaller area than the current line segment circle as the preliminary area; when the preliminary area is less than or equal to the second set area, the fence division system selects a line segment circle with a larger area than the current line segment circle as the preliminary area; if the name of the current cleaning place is surrounded by only one line segment circle, the line segment circle is proportionally reduced or enlarged; if the fence division system constructs the preliminary area with the line segments on both sides of the name of the cleaning place as boundaries, a perpendicular line perpendicular to the longer line segment is made through the endpoints of the shorter line segment, and then the preliminary area is constructed with the perpendicular line as another boundary.

[0008] Further, in step S3, the fence division system adjusts the first working area according to the area adjustment instruction, including the following steps: the fence division system identifies the map coordinate points in the area adjustment instruction, and then places the map coordinate points in the working map according to the coordinates of the map coordinate points; the fence division system performs straight line fitting on the map coordinate points through a straight line fitting algorithm to obtain a fitted straight line; the fence division system uses the two end points of the overfitting straight line to make a vertical line perpendicular to the boundary of the preliminary area closest to the fitted straight line; the fence division system deletes the line segment between the two vertical lines to obtain the adjusted second area; or, the fence division system identifies the map coordinate points in the area adjustment instruction, and then places the map coordinate points in the working map in sequence according to the order in which the map coordinate points are obtained; the fence division system connects the first obtained map coordinate point and the last obtained map coordinate point to the point on the boundary of the preliminary area and closest to the map coordinate point respectively; the fence division system connects the map coordinate points in sequence to obtain a new working area, and then deletes the line segment in the new working area to obtain the adjusted second area.

[0009] Furthermore, in step S4, the fence division system generates an electronic fence for sanitation workers to work in accordance with the boundary of the second work area through GPS or 4G positioning technology.

[0010] Furthermore, after the fence division system obtains the electronic fence, it selects a sanitation worker group according to the area of ​​the electronic fence, and then sends the cleaning coordinates and cleaning time to the electronic work badges of the sanitation workers of the corresponding sanitation work group.

[0011] A fence division system is provided, wherein the fence division system divides an electronic fence by using the above-mentioned electronic fence division method for sanitation workers.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: the fence division system described in the present application divides the first working area through the geographical data of the sanitation workers' work map, and then obtains the electronic fence for the sanitation workers' work by adjusting the first working area, so that the area to be cleaned in each area is the same, thereby improving work efficiency; the fence division system constructs an electronic fence by dynamically adjusting the first area, so that the constructed electronic fence can effectively adapt to changes in urban construction, and has high flexibility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a flow chart of an electronic fence division method in an embodiment of the present invention; Figure 2 A schematic diagram of a first area on a map in an embodiment of the present invention; Figure 3The figure is a schematic diagram of the second area on the map in one embodiment of the present invention. DETAILED DESCRIPTION

[0014] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0015] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0016] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0017] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the invention, unless otherwise specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “below”, and “above” a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “above”, “below”, and “below” a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0020] like Figure 1 As shown, a method for dividing an electronic fence for sanitation workers, the method comprising the following steps: S1: The fence dividing system obtains a work map of the sanitation workers to be divided into electronic fences, and then obtains the geographic data in the work map. S2: The fence dividing system divides a number of first working areas from the work map according to the geographic data of the work map, and presents them in the work map. S3: The fence dividing system receives an area adjustment instruction, and then the fence dividing system adjusts the first working area according to the area adjustment instruction to obtain a second working area. S4: The fence dividing system obtains the boundary of the second working area, and then generates an electronic fence for sanitation workers based on the boundary of the second working area through positioning technology.

[0021] As one embodiment, in step S1, the fence division system obtains geographic data in the work map, including the following steps: the fence division system obtains the city map in advance through the map service software (third-party map service software such as Baidu Maps, Tianditu, etc.) or the city management system. The fence division system recognizes the name of the cleaning place on the city map through text (that is, recognizes what road, what park, what bridge, etc.). The fence division system obtains the name of the cleaning place on the city map or the line segments on both sides of the name of the cleaning place through an algorithm. Among them, the cleaning place includes but is not limited to streets, rivers, bridges and parks. The working area of ​​sanitation workers is generally parks and streets, so it is only necessary to construct the working area through streets and parks. The boundaries of rivers generally have roads that need to be cleaned, so it is also necessary to construct the working area through the boundaries of rivers. The text recognition algorithm refers to the process of converting the text in the image into an editable text format using computer technology. These algorithms usually include steps such as image preprocessing, text detection and text recognition, and use deep learning models such as convolutional neural networks (CNN), recurrent neural networks (RNN), etc. to achieve high-precision text recognition.

[0022] As one of the embodiments, in step S2, the fence division system divides a number of first working areas from the working map according to the geographic data of the working map, including the following steps: the fence division system obtains the line segment surrounding the name of the cleaning place through the Hough transform algorithm, and the fence division system sets the line segment with a set distance from the name of the cleaning place as the line segment located on both sides of the name of the cleaning place. When calculating the distance, first randomly select a point from the name of the cleaning place, obtain the longitude and latitude coordinates (x, y) of this point P, and then obtain the two endpoints A (x1, y1) and B (x2, y2) of each line segment, and calculate the distance d according to the distance formula from the point to the line segment: d = |(x2-x1)(y1-y) - (x1-x)(y2-y1)| / sqrt((x2-x1)^2 + (y2-y1)^2). The fence division system constructs a preliminary area with the line segment surrounding the name of the cleaning place or located on both sides of the name of the cleaning place as the boundary. The fence division system obtains the area of ​​the preliminary area, and then compares the area of ​​the preliminary area. If the area of ​​the preliminary area is less than the first set area and greater than the second set area, the preliminary area is used as the first set area. If the area of ​​the preliminary area is greater than or equal to the first set area or less than or equal to the second set area, the preliminary area is adjusted, and then the adjusted preliminary area is used as the first working area. Because the number of sanitation workers in a group is generally fixed, if the cleaning work is to be completed within a specified time, the area of ​​the working area needs to be set within a specific range, which is conducive to improving cleaning efficiency. ‌‌Hough transform‌ is a feature extraction technology that is widely used in image analysis, computer vision, and digital image processing. It is mainly used to detect geometric shapes in images, such as straight lines, circles, ellipses, etc. The basic principle of Hough transform is to convert the shape in the image space into a point in the parameter space, and determine the parameters of the shape in the image by detecting the extreme points in the parameter space. The algorithm flow is: preprocess the image, extract features and calculate its gradient direction; quantize the (θ, ρ) parameter plane and set the two-dimensional accumulation matrix H(θi, ρj); retain extreme points in the gradient direction of edge points and eliminate non-extreme points; perform threshold detection on the accumulation matrix and use points greater than the threshold as candidate points; take the maximum point in the accumulation matrix as the required peak point, that is, the parameter of the detected shape. The fence division system can also use line segment recognition algorithms such as scanning line algorithms or deep learning algorithms to perform line segment recognition on the map.

[0023] As one embodiment, the fence division system constructs a preliminary area with line segments as boundaries, including the following steps: the fence division system randomly selects a name from the names of the cleaning places. If the name of the cleaning place is surrounded by line segments to form a line segment circle, the area of ​​the line segment circle is calculated, and the line segment circle with the largest area is used as the preliminary area. Alternatively, the fence division system randomly selects a name from the names of the cleaning places. If the name of the cleaning place is not surrounded by line segments, the longest line segment is selected from the line segments on both sides of the name of the cleaning place as the boundary, and then the line segments that are parallel to the longest line segment and are located on both sides of the name of the cleaning place as another boundary, and then a rectangular area is constructed by these two boundaries as the preliminary area. When selecting, the name of the cleaning place and the position of the line segment can be obtained according to the latitude and longitude coordinates of the working map, or the name of the cleaning place and the position of the line segment can be calculated according to the pixel coordinates of the image of the working map. Figure 2 As shown, the fence division system identifies the botanical park in the map, and then obtains the line segment circle A2 that surrounds the botanical park, and then A2 is used as the preliminary area. If the fence division system identifies Jiangbin East Road, then line segments L1, L2, L3, L4 and L5 are line segments on both sides of Jiangbin East Road, among which line segment L1 is the longest line segment, and line segment L1 is first selected as the boundary. Line segment L2 is on the same side as line segment L1, so it is not selected. Line segments L3, L4 and L5 are all located on the other side of Jiangbin East Road and are parallel to line segment L1 (parallel means that the angle between line segment L1 and line segment L3 is less than the set angle, such as 5 degrees), but line segment L3 is the longest, so line segment L3 is selected as another boundary, and then a perpendicular line perpendicular to L1 is drawn through the two end points of line segment L3 to obtain preliminary area A1.

[0024] As one embodiment, the fence division system adjusts the preliminary area, including the following steps: if the fence division system uses the line segment circle surrounding the name of the cleaning place as the preliminary area, then when the preliminary area is greater than or equal to the first set area, the fence division system selects a line segment circle with a smaller area than the current line segment circle as the preliminary area. When the preliminary area is less than or equal to the second set area, the fence division system selects a line segment circle with a larger area than the current line segment circle as the preliminary area. If the name of the current cleaning place is surrounded by only one line segment circle, the line segment circle is proportionally reduced or enlarged. If the fence division system constructs the preliminary area with the line segments on both sides of the name of the cleaning place as the boundary, a perpendicular line perpendicular to the longer line segment is drawn through the endpoints of the shorter line segment, and then the preliminary area is constructed with the perpendicular line as another boundary.

[0025] As one of the embodiments, in step S3, the fence division system adjusts the first working area according to the area adjustment instruction, including the following steps: the fence division system identifies the map coordinate point in the area adjustment instruction, and then places the map coordinate point in the working map according to the coordinates of the map coordinate point. The fence division system performs a straight line fitting on the map coordinate point using a straight line fitting algorithm to obtain a fitted straight line. The fence division system draws perpendicular lines from the two end points of the overfitting straight line to the boundary of the preliminary area closest to the fitted straight line. The fence division system deletes the line segment between the two perpendicular lines to obtain an adjusted second area. Figure 3 As shown, when the fence system obtains the map coordinate points P1 and P2, a fitting straight line L6 is obtained through straight line fitting, and a perpendicular line L5 of the boundary of the preliminary area A2 is made through the two end points of L6, and then L6 is used as the boundary of the preliminary area A2, and L5 is deleted to obtain the adjusted second area. Alternatively, the fence division system identifies the map coordinate points in the area adjustment instruction, and then places the map coordinate points in the working map in sequence according to the order in which the map coordinate points are obtained; the fence division system connects the first obtained map coordinate point and the last obtained map coordinate point to the point located on the boundary of the preliminary area and closest to the map coordinate point; the fence division system connects the map coordinate points in sequence to obtain a new working area, and then deletes the line segments in the new working area to obtain the adjusted second area. When the fence system obtains the map coordinate points P3, P4, P5, P6 and P7 in sequence, the firstly obtained map coordinate points P3 and P7 are respectively connected to the points located on the boundary of the preliminary area and closest to the map coordinate points, and then the map coordinate points P3, P4, P5, P6 and P7 are connected in sequence to obtain a new working area, and then the line segment L7 is deleted in the new working area to obtain the adjusted second area.

[0026] As one embodiment, in step S4, the fence demarcation system generates an electronic fence for sanitation workers to work in accordance with the boundary of the second work area through GPS or 4G positioning technology.

[0027] As one of the embodiments, after the fence division system obtains the electronic fence, it selects a sanitation worker group according to the area of ​​the electronic fence, and then sends the cleaning coordinates and cleaning time to the electronic work badges of the sanitation workers of the corresponding sanitation work group.

[0028] A fence division system is provided, wherein the fence division system divides an electronic fence by using the above-mentioned electronic fence division method for sanitation workers.

[0029] The fence division system described in the present application divides the first work area by the geographic data of the sanitation worker's work map, and then obtains the electronic fence for the sanitation worker's work by adjusting the first work area, so that the area to be cleaned in each area is the same, thereby improving work efficiency. The fence division system constructs an electronic fence by dynamically adjusting the first area, so that the constructed electronic fence can effectively adapt to changes in urban construction, and has high flexibility and practicality.

[0030] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The connection method connected in the description of the specification has obvious effects and practical effectiveness.

[0031] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the well-known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A method for dividing an electronic fence for sanitation workers, characterized in that: The method comprises the following steps: S1: The fence division system obtains a work map of the sanitation worker to be divided into electronic fences, and then obtains geographic data in the work map; S2: The fence division system divides a plurality of first working areas from the working map according to the geographical data of the working map, and presents the first working areas in the working map; S3: the fence division system receives the area adjustment instruction, and then the fence division system adjusts the first working area according to the area adjustment instruction to obtain the second working area; S4: The fence division system obtains the boundary of the second working area, and then generates an electronic fence for the sanitation workers to work based on the boundary of the second working area through positioning technology.

2. The electronic fence division method for sanitation workers according to claim 1 is characterized in that: In step S1, the fence demarcation system obtains geographic data in the working map, including the following steps: The fence demarcation system obtains the city map in advance through the map service software or the city management system; The fence demarcation system identifies the names of cleanup locations on city maps through text; The fence demarcation system obtains the line segments surrounding the name of the cleaning location or located on both sides of the name of the cleaning location on the city map through an algorithm; Among them, cleaning locations include but are not limited to streets, rivers, bridges and parks.

3. The electronic fence division method for sanitation workers according to claim 2 is characterized in that: In step S2, the fence division system divides a plurality of first working areas from the working map according to the geographic data of the working map, including the following steps: The fence division system obtains line segments surrounding the name of the cleaning location through a Hough transform algorithm, and the fence division system sets line segments whose distance from the name of the cleaning location is a set distance as line segments located on both sides of the name of the cleaning location; The fence division system constructs a preliminary area with the line segments surrounding the name of the cleaning location or located on both sides of the name of the cleaning location as the boundary; The fence division system obtains the area of ​​the preliminary area and then compares the area of ​​the preliminary area. If the area of ​​the preliminary region is smaller than the first set area and larger than the second set area, the preliminary region is used as the first set area; If the area of ​​the preliminary region is greater than or equal to the first set area or less than or equal to the second set area, the preliminary region is adjusted, and then the adjusted preliminary region is used as the first working region.

4. The electronic fence division method for sanitation workers according to claim 3 is characterized in that: The fence division system constructs a preliminary area with line segments as boundaries, including the following steps: The fence division system randomly selects a name from the names of the cleaning locations. If the name of the cleaning location is surrounded by a line segment to form a line segment circle, the area of ​​the line segment circle is calculated, and the line segment circle with the largest area is used as the preliminary area. Alternatively, the fence division system randomly selects a name from the names of the cleaning places. If the name of the cleaning place is not surrounded by line segments, the longest line segment is selected from the line segments on both sides of the name of the cleaning place as the boundary, and then line segments parallel to the longest line segment and located on both sides of the name of the cleaning place are selected as another boundary, and then a rectangular area is constructed by these two boundaries as the preliminary area.

5. The electronic fence division method for sanitation workers according to claim 4 is characterized in that: The fence demarcation system makes adjustments to the preliminary area, including the following steps: If the fence division system uses a line segment circle surrounding the name of the cleaning location as the preliminary area, then when the preliminary area is greater than or equal to the first set area, the fence division system selects a line segment circle with a smaller area than the current line segment circle as the preliminary area; When the preliminary area is less than or equal to the second set area, the fence division system selects a line segment circle with a larger area than the current line segment circle as the preliminary area; If the name of the current cleaning location is surrounded by only one line segment circle, the line segment circle is reduced or enlarged in proportion; If the fence division system constructs the preliminary area with the line segments on both sides of the name of the cleaning location as the boundary, a perpendicular line is drawn through the endpoints of the shorter line segment and perpendicular to the longer line segment, and then the preliminary area is constructed with the perpendicular line as another boundary.

6. The electronic fence division method for sanitation workers according to claim 5 is characterized in that: In step S3, the fence division system adjusts the first working area according to the area adjustment instruction, including the following steps: The fence division system identifies the map coordinate points in the area adjustment instruction and then places the map coordinate points in the working map according to the coordinates of the map coordinate points; The fence division system uses a straight line fitting algorithm to fit the map coordinate points to obtain a fitting straight line; The fence division system draws perpendicular lines perpendicular to the boundary of the preliminary area closest to the fitting line from the two end points of the overfitting line respectively; The fence division system deletes the line segment between the two vertical lines to obtain an adjusted second area; Alternatively, the fence division system identifies the map coordinate points in the area adjustment instruction, and then places the map coordinate points in the working map in sequence according to the order in which the map coordinate points are obtained; The fence division system connects the first obtained map coordinate point and the last obtained map coordinate point to the point located on the boundary of the preliminary area and closest to the map coordinate point respectively; The fence division system connects the map coordinate points in sequence to obtain a new working area, and then deletes the line segments in the new working area to obtain an adjusted second area.

7. The electronic fence division method for sanitation workers according to claim 6 is characterized in that: In step S4, the fence division system generates an electronic fence for sanitation workers to work in accordance with the boundary of the second work area through GPS or 4G positioning technology.

8. The electronic fence division method for sanitation workers according to claim 1 is characterized in that: After the fence division system obtains the electronic fence, it selects the sanitation worker group according to the area of ​​the electronic fence, and then sends the cleaning coordinates and cleaning time to the electronic work badge of the sanitation worker of the corresponding sanitation work group.

9. A fence division system, characterized in that: The fence division system divides the electronic fence by using the electronic fence division method for sanitation workers according to any one of claims 1 to 8.

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