CN113689102B - Construction site inspection mode determining method and system - Google Patents
Construction site inspection mode determining method and system Download PDFInfo
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- 238000007689 inspection Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims description 96
- 238000004422 calculation algorithm Methods 0.000 claims description 23
- 238000004590 computer program Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 7
- 230000006399 behavior Effects 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 7
- 238000011835 investigation Methods 0.000 description 7
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- 238000004891 communication Methods 0.000 description 6
- 101100182248 Caenorhabditis elegans lat-2 gene Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
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- 101150090997 DLAT gene Proteins 0.000 description 3
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- 230000006870 function Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06F16/2255—Hash tables
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- G06Q50/08—Construction
Abstract
The invention provides a method and a system for determining a site inspection mode, wherein the method comprises the following steps: comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position; encoding the target position, merging the regions to which a plurality of adjacent encodings belong, and generating a target site region; calculating the suspicious degree of the target site area as a concealed site area according to the number and the times of all the working vehicles entering the target site area; and determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area. The method and the system realize automatic and accurate determination of the inspection range and the suspicious degree of the target site area as the concealed site area, so that inspection staff can inspect the site according to the effective inspection range and the suspicious degree, the cost of manpower characters can be effectively reduced, and the inspection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of city management, in particular to a method and a system for determining a construction site inspection mode.
Background
As cities develop faster, the number of building sites has shown an increasing trend year by year. But some developers often keep away from the administrative and control site, so that the occurrence of illegal sites and black sites where the report is present is often kept. The existence of the black building site not only disturbs the market, but also has extremely bad influence on urban environment management. And under the condition that the black site is out of control, safety accidents are extremely easy to cause.
In the prior art, the construction sites are usually inspected one by manpower to determine whether a hidden construction site exists in the city range. However, because the urban area is large in range, each area of the city is inspected manually, so that a large amount of manpower and material resources are consumed; moreover, the condition of missed detection easily occurs, so that the inspection result is inaccurate. Therefore, how to accurately and conveniently determine the site inspection mode is a problem to be solved in site management.
Disclosure of Invention
The invention provides a method and a system for determining a site inspection mode, which are used for solving the defects that a large amount of manpower and material resources are required to be consumed and the inspection accuracy is low in the prior art by manually inspecting a site, and realizing accurate and convenient determination of the site inspection mode so as to quickly and accurately inspect the site.
The invention provides a method for determining a site inspection mode, which comprises the following steps:
comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position;
encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding-belonging areas to generate a target site area;
calculating the suspicious degree of the target construction site area as a plausible construction site area according to the number and the times of all the working vehicles entering the target construction site area;
and determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
According to the method for determining the inspection mode of the construction site provided by the invention, according to the number and the times of all the operation vehicles entering the target construction site, the suspicious degree of the target construction site for concealing the construction site is calculated, and the method comprises the following steps:
acquiring the number and the times of all the working vehicles entering the target work area in each preset time period of the historical time period to be checked;
the number and the number of times of all the working vehicles entering the target construction area in each preset time period are added in a weighted mode;
And carrying out weighted addition again on the weighted addition results corresponding to all the preset time periods of the historical time period to be checked, and taking the weighted addition result again as the suspicious degree.
According to the method for determining the site inspection mode provided by the invention, the combining of the areas to which a plurality of adjacent codes belong to generates a target site area, and the method comprises the following steps:
adding 1 and subtracting 1 to the longitude corresponding to each code to obtain the longitudes corresponding to other codes adjacent to each code;
1 adding and 1 subtracting operations are carried out on the latitudes corresponding to each code, and latitudes corresponding to other codes adjacent to each code are obtained;
taking the codes with the same longitude as the longitude of each code or the longitude corresponding to the other codes in all codes and the same latitude as the latitude of each code or the latitude corresponding to the other codes as adjacent codes of each code;
and merging the region to which each code belongs and the region to which the adjacent code of each code belongs to generate the target construction area.
According to the method for determining the inspection mode of the construction site provided by the invention, the method for determining the inspection mode of the target construction site according to the target position and the suspicious degree contained in the target construction site comprises the following steps:
Fitting a minimum circumscribed circle containing all target positions in the target construction area according to the target positions contained in the target construction area;
and determining the inspection mode of the target site area according to the minimum circumscribed circle and the suspicious degree.
According to the method for determining the site inspection mode provided by the invention, the fitting of the minimum circumscribed circle containing all the target positions in the target site area according to the target positions contained in the target site area comprises the following steps:
acquiring the vertexes of the minimum circumscribed polygons of all target positions in the target construction area according to the longitudes and latitudes of all target positions in the target construction area;
calculating the circle center and the radius of the minimum circumscribed circle according to the vertex of the minimum circumscribed polygon;
and fitting the minimum circumscribed circle according to the circle center and the radius.
According to the method for determining the site inspection mode, the minimum circumscribed polygon is a minimum circumscribed rectangle;
correspondingly, the obtaining the vertex of the minimum circumscribing polygon of all the target positions in the target construction area according to the longitude and latitude of all the target positions in the target construction area comprises the following steps:
And combining the minimum longitude with the minimum latitude and the maximum latitude in all target positions in the target construction area respectively, and combining the maximum longitude with the minimum latitude and the maximum latitude respectively to obtain the vertex of the minimum circumscribed polygon.
The invention also provides a system for determining the site inspection mode, which comprises the following steps:
the comparison module is used for comparing the positioning position of each working vehicle with the pre-acquired authorized work area, and taking the positioning position outside the authorized work area as a target position;
the merging module is used for coding the target position based on a GeoHash algorithm, merging the areas to which a plurality of adjacent codes belong and generating a target construction area;
the calculation module is used for calculating the suspicious degree of the target construction site area as a concealed construction site area according to the number and the times of all the operation vehicles entering the target construction site area;
and the determining module is used for determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of the method for determining a site inspection mode as described above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method of worksite inspection mode determination as described in any of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor carries out the steps of a method of determining a site inspection mode as described in any one of the above.
According to the method and the system for determining the investigation mode of the construction site, provided by the invention, the target position with abnormal loading is accurately determined through the load and the positioning position of the combined working vehicle, and the more effective target construction site area is determined according to the code of the target position, so that the investigation range can be automatically and accurately determined, the number and the times of all working vehicles entering the target construction site area are combined, the suspicious degree of the target construction site area is automatically calculated, and the investigation mode of the target construction site area is automatically and accurately determined according to the investigation range and the suspicious degree, so that an inspector can perform investigation on each target construction site area according to the accurate investigation mode, the effective investigation range can be locked, and manpower and material resources are reduced; the target site area can be pertinently inspected according to the suspicious degree, and the inspection efficiency and accuracy are further effectively improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for determining a site inspection mode provided by the invention;
FIG. 2 is a schematic diagram of a plurality of adjacent codes in a method for determining a construction site inspection mode provided by the invention;
FIG. 3 is a schematic diagram of the structure of a fitted minimum circumscribed circle in the method for determining the site inspection mode provided by the invention;
FIG. 4 is a second flow chart of the method for determining a site inspection mode provided by the invention;
FIG. 5 is a schematic diagram of a construction site inspection mode determination system provided by the invention;
fig. 6 is a schematic structural diagram of an electronic device provided by the present invention;
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The method for determining the inspection mode of the construction site according to the invention is described below with reference to fig. 1, and comprises the following steps: step 101, comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position;
the working vehicle may be a working vehicle having a load function, such as a soil truck or a loader, and the present embodiment is not particularly limited thereto. The number of work vehicles may be set according to actual requirements.
Optionally, firstly, acquiring the load condition of each working vehicle in real time through load sensing equipment; acquiring the positioning position of each working vehicle in real time by adopting a satellite positioning device; and reporting the load condition and the positioning position of each working vehicle to an inspection platform. The positioning location includes a longitude and a latitude.
Then, the loading conditions and the positioning positions of the work vehicles are combined, and the positioning positions of the loading behaviors of the work vehicles are obtained. Whether loading behavior of each work vehicle occurs may be determined by determining whether the load of the work vehicle is within a preset range, or whether the load changes.
Optionally, the step of determining the positioning position of each working vehicle where the loading action occurs includes judging whether each working vehicle has a load rising condition according to the load condition of each working vehicle, and determining whether each working vehicle is in a stop state according to whether the positioning position of each working vehicle has a change; if the working vehicle is in a stay state and the load rises, the loading behavior of the working vehicle can be judged; and combining the generated loading behavior and the positioning position, and accurately acquiring the positioning position of the working vehicle where the loading behavior occurs.
And then, comparing the positioning position of each working vehicle for loading with the authorized work area in the authorized work area information which is recorded in advance by the inspection platform and accords with the inspection regulations, and determining whether the positioning position of each working vehicle for loading is in the authorized work area according to the comparison result.
If the positioning position of any loading action is in the authorized work area, determining that the positioning position is a normal loading point; if the positioning position of any loading action is outside the authorized construction area, determining that the positioning position is an abnormal loading point. All abnormal loading points are taken as target positions.
Compared with the prior art that the black worksite is determined only according to the positioning position of the slag soil vehicle, the loading condition and the positioning position of the combined operation vehicle determine the target position, and the effective range of the black worksite can be positioned more accurately.
102, encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding belonging areas to generate a target site area;
the GeoHash algorithm is an algorithm for encoding longitude and latitude, converting longitude and latitude data of a two-dimensional space into one-dimensional codes and partitioning address positions.
Alternatively, the GeoHash algorithm bisects the latitude and longitude ranges into two intervals, and uses binary to represent whether the latitude and longitude belong to the current interval. If the longitude and latitude of the positioning position belong to the current interval, the binary code is 1; if not, the binary code is 0. The target position is continuously approximated by a class bipartite algorithm which bisects the latitude and longitude ranges into two intervals until the precision requirement is met, and the code information of the latitude and longitude is obtained.
After the target positions are acquired, each target position is encoded by using a GeoHash algorithm. The length of the code can be set according to practical requirements, such as 8 bits.
Since the target location may be located at the boundary of the GeoHash code coverage area. Therefore, in order to describe the region range of the black worksite more accurately, it is necessary to combine a plurality of codes adjacent to the region to which the code belongs, to obtain the target worksite region.
The merging method may be to merge a plurality of regions to which codes adjacent to the periphery of a region to which any code belongs and a region to which the code belongs, or merge a plurality of regions to which codes having a mutual proximity relationship, and this embodiment is not particularly limited. Each code belonging to a region that is contained only by one target worksite region.
The number of codes contained in each target construction area may be set according to actual requirements, and the comparison of the embodiment is not specifically limited.
Step 103, calculating the suspicious degree of the target site area as a hidden report site area according to the number and times of all the working vehicles entering the target site area;
optionally, after the target worksite areas are acquired, the suspicious degree of each target worksite area for the purpose of reporting the worksite area is calculated by combining the number of all vehicles entering each target worksite area and the number of vehicles entering the target worksite area.
Wherein the higher the degree of suspicion, the greater the likelihood that the target worksite area is a plausible worksite area.
Alternatively, the target worksite area may be classified into a plurality of levels as to how suspicious the worksite area is to be concealed. And setting the inspection priority according to the grade of each target site area. The higher the level of suspicion, the higher the priority of inspection.
The method of dividing the suspicious degree of the target site area into a plurality of levels in the manner of concealing the suspicious degree of the site area may be to compare the suspicious degree of the target site area with a preset threshold range and determine the level of the suspicious degree according to the comparison result. The number of suspicious degree grades can be set according to actual requirements.
For example, the degree of suspicion V of the target work area may be classified into four levels, namely, an extreme suspicion S, a high suspicion H, a medium suspicion M, and a low suspicion L. The division formula of the suspicious degree is as follows:
optionally, in order to more accurately locate to a black worksite, the coverage area of the black worksite needs to be reduced while improving the accuracy of matching the black worksite.
And 104, determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
Optionally, the inspection range is obtained according to all discrete target positions in the target worksite area, and the priority level of the inspection is obtained according to the suspicious degree of each target worksite area. Corresponding inspection modes are determined according to the inspection ranges and the priority levels, so that inspection staff can inspect all target site areas according to the determined inspection modes, the effective inspection ranges can be locked, and a large amount of manpower and material resources caused by inspecting each area of the city are avoided; the target site area with high suspicious degree can be preferentially inspected and the key inspection can be preferentially performed according to the priority level, so that the inspection efficiency and accuracy are effectively improved.
The present embodiment is not particularly limited, and the target site area may include a target position fitted to obtain an inspection range, or a coverage area using a center position of the target site area as a center and a distance from a farthest target position to the center as a radius may be used as the inspection range.
According to the method, the device and the system, the target position with abnormal loading is accurately determined through the load and the positioning position of the combined working vehicle, the more effective target working area is determined according to the code of the target position, the inspection range can be automatically and accurately determined, the quantity and the times of all working vehicles entering the target working area are combined, the target working area is automatically calculated to be the suspicious degree of the concealed working area, the inspection mode of the target working area is automatically and accurately determined according to the inspection range and the suspicious degree, so that inspection personnel can inspect all the target working areas according to the accurate inspection mode, the effective inspection range can be locked, and manpower and material resources are reduced; the target site area can be pertinently inspected according to the suspicious degree, and the inspection efficiency and accuracy are further effectively improved.
On the basis of the above embodiment, in this embodiment, calculating the suspicious degree of the target worksite area as a plausible worksite area according to the number and the times of entering all the working vehicles in the target worksite area includes: acquiring the number and the times of all the working vehicles entering the target work area in each preset time period of the historical time period to be checked; the number and the number of times of all the working vehicles entering the target construction area in each preset time period are added in a weighted mode; and carrying out weighted addition again on the weighted addition results corresponding to all the preset time periods of the historical time period to be checked, and taking the weighted addition result again as the suspicious degree.
The to-be-inspected historical time period may be a to-be-inspected historical time period preset before the current moment.
Optionally, if the historical time period to be inspected includes a plurality of historical time periods, calculating the suspicious degree of the target site area in each historical time period; the suspicious levels of the target worksite region over a plurality of historical time periods are then summed. The history time period may be one day or one week, or the like, and this embodiment is not particularly limited.
A method of calculating the degree of suspicion of the target site area as a concealed site area in the present embodiment will be described below taking one day as an example.
The daily may be divided into a plurality of preset time periods according to actual demands, for example, divided into three time periods of 0 to 7 points, 7 to 20 points and 20 to 24 points, respectively.
And then, counting the number and times of all the working vehicles entering the target construction area in each preset time period, and calculating and obtaining the suspicious degree of the target construction area in each historical time period by combining the probability coefficient of the working vehicle in the working state in each preset time period.
TABLE 1 degree of doubtful target worksite area for each preset time period
The calculation formula of the suspicious degree of the target site area in each historical time period is as follows:
the SUD is the suspicious degree of the target site area in each historical time period; k1, k2 and k3 are probability coefficients of the working vehicle in a working state in each preset time period respectively; a and b are weight coefficients; VTN and VEN are the number and number of vehicles entering the target worksite area, respectively.
Where k1, k2 and k3, and a and b can be obtained by model fitting. The initial parameters of the fitting model, the fitting precision and the like can be specifically set according to actual requirements.
The model fitting program may be implemented by MATLAB simulation software or the like, which is not particularly limited in this embodiment. For example, k1=1, k2=0.8, k3=1.2, a=0.4 and b=0.7 were obtained by MATLAB simulation software fitting analysis. As shown in table 1, the obtained suspicious degree of the target site area in each preset time period is calculated according to the above formula.
Optionally, adding the suspicious degree of the target site area in all the historical time periods to obtain the suspicious degree of the target site area as the concealed site area, wherein the calculation formula is as follows:
the SU is the suspicious degree of the current target construction area; k is the number of historical time periods contained in the historical time period to be checked; SUD (speeded Up display) n Is the degree of suspicion of the target worksite region during the nth historical time period.
On the basis of the foregoing embodiment, in this embodiment, merging the regions to which the plurality of adjacent codes belong to generate the target site region includes: adding 1 and subtracting 1 to the longitude corresponding to each code to obtain the longitudes corresponding to other codes adjacent to each code; 1 adding and 1 subtracting operations are carried out on the latitudes corresponding to each code, and latitudes corresponding to other codes adjacent to each code are obtained; taking the codes with the same longitude as the longitude of each code or the longitude corresponding to the other codes in all codes and the same latitude as the latitude of each code or the latitude corresponding to the other codes as adjacent codes of each code; and merging the region to which each code belongs and the region to which the adjacent code of each code belongs to generate the target construction area.
Alternatively, according to the coding principle of Geohash, the longitude and latitude corresponding to the code can be reversely coded.
As shown in fig. 2, for any code, the code is extracted according to even bits to obtain a longitude lng1 corresponding to the code, and the code is extracted according to odd bits to obtain a latitude lat1 corresponding to the code;
then, respectively carrying out 1 adding and 1 subtracting operations on the longitude lng1 corresponding to the code to obtain longitudes corresponding to codes adjacent to the left and right of the code, wherein the longitudes are lng2 and lng3 respectively; and the latitude lat1 corresponding to the code is respectively subjected to 1 adding and 1 subtracting operations to obtain longitudes lat2 and lat3 corresponding to the codes which are adjacent to the code up and down.
Then judging whether codes with the longitude identical to lng1, lng2 or lng3 and the latitude identical to lat1, lat2 or lat3 exist in the codes of all target positions; that is, whether there are codes corresponding to longitude and latitude (lng 1, lat 1), (lng 1, lat 2), (lng 1, lat 3), (lng 2, lat 1), (lng 2, lat 2), (lng 2, lat 3), (lng 3, lat 1), (lng 3, lat 2), and (lng 3, lat 3).
If so, the code satisfying the condition is regarded as the adjacent code of the code. And combining the region to which the code belongs and the region to which the adjacent code of the code belongs to generate a target construction site region.
It should be noted that, to avoid repeated calculation, each code in this embodiment is only included in one target work area, that is, after a plurality of adjacent codes are combined, any code in the plurality of adjacent codes is no longer combined with other codes except the plurality of adjacent codes.
On the basis of the foregoing embodiments, in this embodiment, determining an inspection mode of the target site area according to the target location and the suspicious degree included in the target site area includes: fitting a minimum circumscribed circle containing all target positions in the target construction area according to the target positions contained in the target construction area; and determining the inspection mode of the target site area according to the minimum circumscribed circle and the suspicious degree.
Optionally, the target site area comprises a target location that is a plurality of discrete sets of points that do not completely cover the target site area. Therefore, in order to further reduce the effective area for checking the target site area, the target site area is more accurately positioned to the address where the target site area possibly has a hidden report, and the minimum circumscribed circle algorithm is adopted to fit and acquire the minimum circumscribed circle which can contain all target positions in the target site area.
The minimum circumscribing algorithm includes a random increment algorithm and a dual decision algorithm, or after the target positions of the edges of the distributed target construction area are fitted to a polygon, the minimum circumscribing circle is obtained according to the polygon fitting, and the embodiment is not limited in detail.
Based on the foregoing embodiment, in this embodiment, fitting a minimum circumscribed circle including all target positions in the target work area according to the target positions included in the target work area includes: acquiring the vertexes of the minimum circumscribed polygons of all target positions in the target construction area according to the longitudes and latitudes of all target positions in the target construction area; calculating the circle center and the radius of the minimum circumscribed circle according to the vertex of the minimum circumscribed polygon;
and fitting the minimum circumscribed circle according to the circle center and the radius.
Alternatively, the positions of the target positions distributed in the target construction area can be determined according to the longitude and latitude of the target positions; and fitting a minimum circumscribed polygon which can contain all target positions in the target construction area according to the positions of the target positions distributed in the target construction area.
Then, the center and radius of the minimum circumscribed circle can be calculated according to each vertex of the minimum polygon to fit the minimum circumscribed circle containing all target positions in the target construction area.
The minimum polygon may be a quadrangle, a pentagon, or the like, and this embodiment is not particularly limited.
On the basis of the above embodiment, in this embodiment, the minimum circumscribed polygon is a minimum circumscribed rectangle; correspondingly, the obtaining the vertex of the minimum circumscribing polygon of all the target positions in the target construction area according to the longitude and latitude of all the target positions in the target construction area comprises the following steps: and combining the minimum longitude with the minimum latitude and the maximum latitude in all target positions in the target construction area respectively, and combining the maximum longitude with the minimum latitude and the maximum latitude respectively to obtain the vertex of the minimum circumscribed polygon.
As shown in FIG. 3, first, four vertices of the minimum bounding rectangle containing all target positions are calculated, P 1 (x 1 ，y 1 )、P 2 (x 2 ，y 2 )、P 3 (x 3 ，y 3 ) And P 4 (x 4 ，y 4 )。
Optionally, according to the calculation formula for calculating the vertex of the minimum circumscribing polygon according to the minimum longitude, the maximum longitude, the minimum latitude and the maximum latitude in all target positions in the target work area, the calculation formula is as follows:
x 1 ＝min(lng 1 ，lng 2 ......lng n )；
y 1 ＝max(lat 1 ，lat 2 ......lat n )；
x 2 ＝min(lng 1 ，lng 2 ......lng n )；
y 2 ＝min(lat 1 ，lat 2 ......lat n )；
x 3 ＝max(lng 1 ，lng 2 ......lng n )；
y 3 ＝max(lat 1 ，lat 2 ......lat n )；
x 4 ＝max(lng 1 ，lng 2 ......lng n )；
y 4 ＝min(lng 1 ，lng 2 ......lng n )；
Where lng is longitude and lat is latitude.
Accordingly, the center C (lng c ，lat c ) The formula of (2) is:
the formula for calculating the radius r of the minimum circumscribed circle is:
r＝
R*arccos(min(1，(sin dlat c +sin dlat 1 +cos dlat c +cosdlat 1 +cos(x1-lng c ))*π/180))；
wherein R is the earth radius.
As shown in fig. 4, an overall flow chart of a method for determining a site inspection mode according to the present embodiment includes the following specific steps:
step (1), a vehicle load sensing device and a satellite positioning device report the load and the positioning of a vehicle;
step (2), taking the positioning position of the load in a stop state as a target position;
step (3), judging whether the target position is in the authorized work area, if not, executing the step (4);
generating a GeoHash code according to the longitude and latitude of the target position;
step (5), merging adjacent GeoHash codes to form a target construction site area;
step (6), calculating the suspicious degree of the target site area according to the number of vehicles and the number of vehicles of the target site area in different time periods and corresponding weight coefficients, and grading the suspicious degree;
fitting a minimum circumscribed rectangle containing all target positions in the target construction area, and fitting a minimum circumscribed circle containing all target positions in the target construction area according to the vertex of the minimum circumscribed rectangle;
And (8) determining an inspection mode of the target site area according to the minimum circumscribed circle and the grade of the suspicious degree of the target site area.
The system for determining the site inspection mode provided by the invention is described below, and the system for determining the site inspection mode described below and the method for determining the site inspection mode described above can be correspondingly referred to each other.
As shown in fig. 5, the present embodiment provides a system for determining a site inspection mode, which includes a comparing module 501, a combining module 502, a calculating module 503 and a determining module 504, wherein:
the comparison module 501 is configured to compare a location where loading actions occur on each working vehicle with a pre-acquired authorized work area, and take a location outside the authorized work area as a target location;
the working vehicle may be a working vehicle having a load function, such as a soil truck or a loader, and the present embodiment is not particularly limited thereto. The number of work vehicles may be set according to actual requirements.
Optionally, firstly, acquiring the load condition of each working vehicle in real time through load sensing equipment; acquiring the positioning position of each working vehicle in real time by adopting a satellite positioning device; and reporting the load condition and the positioning position of each working vehicle to an inspection platform. The positioning location includes a longitude and a latitude.
Then, the loading conditions and the positioning positions of the work vehicles are combined, and the positioning positions of the loading behaviors of the work vehicles are obtained. Whether loading behavior of each work vehicle occurs may be determined by determining whether the load of the work vehicle is within a preset range, or whether the load changes.
Optionally, the step of determining the positioning position of each working vehicle where the loading action occurs includes judging whether each working vehicle has a load rising condition according to the load condition of each working vehicle, and determining whether each working vehicle is in a stop state according to whether the positioning position of each working vehicle has a change; if the working vehicle is in a stay state and the load rises, the loading behavior of the working vehicle can be judged; and combining the generated loading behavior and the positioning position, and accurately acquiring the positioning position of the working vehicle where the loading behavior occurs.
And then, comparing the positioning position of each working vehicle for loading with the authorized work area in the authorized work area information which is recorded in advance by the inspection platform and accords with the inspection regulations, and determining whether the positioning position of each working vehicle for loading is in the authorized work area according to the comparison result.
If the positioning position of any loading action is in the authorized work area, determining that the positioning position is a normal loading point; if the positioning position of any loading action is outside the authorized construction area, determining that the positioning position is an abnormal loading point. All abnormal loading points are taken as target positions.
Compared with the prior art that the black worksite is determined only according to the positioning position of the slag soil vehicle, the loading condition and the positioning position of the combined operation vehicle determine the target position, and the effective range of the black worksite can be positioned more accurately.
The merging module 502 is configured to encode the target position based on a GeoHash algorithm, merge regions to which a plurality of adjacent codes belong, and generate a target site region;
the GeoHash algorithm is an algorithm for encoding longitude and latitude, converting longitude and latitude data of a two-dimensional space into one-dimensional codes and partitioning address positions.
Alternatively, the GeoHash algorithm bisects the latitude and longitude ranges into two intervals, and uses binary to represent whether the latitude and longitude belong to the current interval. If the longitude and latitude of the positioning position belong to the current interval, the binary code is 1; if not, the binary code is 0. The target position is continuously approximated by a class bipartite algorithm which bisects the latitude and longitude ranges into two intervals until the precision requirement is met, and the code information of the latitude and longitude is obtained.
After the target positions are acquired, each target position is encoded by using a GeoHash algorithm. The length of the code can be set according to practical requirements, such as 8 bits.
Since the target location may be located at the boundary of the GeoHash code coverage area. Therefore, in order to describe the region range of the black worksite more accurately, it is necessary to combine a plurality of codes adjacent to the region to which the code belongs, to obtain the target worksite region.
The merging method may be to merge a plurality of regions to which codes adjacent to the periphery of a region to which any code belongs and a region to which the code belongs, or merge a plurality of regions to which codes having a mutual proximity relationship, and this embodiment is not particularly limited. Each code belonging to a region that is contained only by one target worksite region.
The number of codes contained in each target construction area may be set according to actual requirements, and the comparison of the embodiment is not specifically limited.
The calculating module 503 is configured to calculate, according to the number and the number of times of entering all the working vehicles in the target worksite area, the suspicious degree of the target worksite area being a plausible worksite area;
Optionally, after the target worksite areas are acquired, the suspicious degree of each target worksite area for the purpose of reporting the worksite area is calculated by combining the number of all vehicles entering each target worksite area and the number of vehicles entering the target worksite area.
Wherein the higher the degree of suspicion, the greater the likelihood that the target worksite area is a plausible worksite area.
Alternatively, the target worksite area may be classified into a plurality of levels as to how suspicious the worksite area is to be concealed. And setting the inspection priority according to the grade of each target site area. The higher the level of suspicion, the higher the priority of inspection.
The method of dividing the suspicious degree of the target site area into a plurality of levels in the manner of concealing the suspicious degree of the site area may be to compare the suspicious degree of the target site area with a preset threshold range and determine the level of the suspicious degree according to the comparison result. The number of suspicious degree grades can be set according to actual requirements.
Optionally, in order to more accurately locate to a black worksite, the coverage area of the black worksite needs to be reduced while improving the accuracy of matching the black worksite.
The determining module 504 is configured to determine a screening manner of the target site area according to the target location and the suspicious degree included in the target site area.
Optionally, the inspection range is obtained according to all discrete target positions in the target worksite area, and the priority level of the inspection is obtained according to the suspicious degree of each target worksite area. Corresponding inspection modes are determined according to the inspection ranges and the priority levels, so that inspection staff can inspect all target site areas according to the determined inspection modes, the effective inspection ranges can be locked, and a large amount of manpower and material resources caused by inspecting each area of the city are avoided; the target site area with high suspicious degree can be preferentially inspected and the key inspection can be preferentially performed according to the priority level, so that the inspection efficiency and accuracy are effectively improved.
The present embodiment is not particularly limited, and the target site area may include a target position fitted to obtain an inspection range, or a coverage area using a center position of the target site area as a center and a distance from a farthest target position to the center as a radius may be used as the inspection range.
According to the method, the device and the system, the target position with abnormal loading is accurately determined through the load and the positioning position of the combined working vehicle, the more effective target working area is determined according to the code of the target position, the inspection range can be automatically and accurately determined, the quantity and the times of all working vehicles entering the target working area are combined, the target working area is automatically calculated to be the suspicious degree of the concealed working area, the inspection mode of the target working area is automatically and accurately determined according to the inspection range and the suspicious degree, so that inspection personnel can inspect all the target working areas according to the accurate inspection mode, the effective inspection range can be locked, and manpower and material resources are reduced; the target site area can be pertinently inspected according to the suspicious degree, and the inspection efficiency and accuracy are further effectively improved.
On the basis of the above embodiment, the computing module in this embodiment is specifically configured to: acquiring the number and the times of all the working vehicles entering the target work area in each preset time period of the historical time period to be checked; the number and the number of times of all the working vehicles entering the target construction area in each preset time period are added in a weighted mode; and carrying out weighted addition again on the weighted addition results corresponding to all the preset time periods of the historical time period to be checked, and taking the weighted addition result again as the suspicious degree.
Based on the foregoing embodiments, the merging module in this embodiment is specifically configured to: adding 1 and subtracting 1 to the longitude corresponding to each code to obtain the longitudes corresponding to other codes adjacent to each code; 1 adding and 1 subtracting operations are carried out on the latitudes corresponding to each code, and latitudes corresponding to other codes adjacent to each code are obtained; taking the codes with the same longitude as the longitude of each code or the longitude corresponding to the other codes in all codes and the same latitude as the latitude of each code or the latitude corresponding to the other codes as adjacent codes of each code; and merging the region to which each code belongs and the region to which the adjacent code of each code belongs to generate the target construction area.
On the basis of the above embodiments, the present embodiment further includes a fitting module, specifically configured to: fitting a minimum circumscribed circle containing all target positions in the target construction area according to the target positions contained in the target construction area; and determining the inspection mode of the target site area according to the minimum circumscribed circle and the suspicious degree.
On the basis of the foregoing embodiment, the fitting module in this embodiment is further configured to: acquiring the vertexes of the minimum circumscribed polygons of all target positions in the target construction area according to the longitudes and latitudes of all target positions in the target construction area; calculating the circle center and the radius of the minimum circumscribed circle according to the vertex of the minimum circumscribed polygon; and fitting the minimum circumscribed circle according to the circle center and the radius.
On the basis of the above embodiment, in this embodiment, the minimum circumscribed polygon is a minimum circumscribed rectangle; correspondingly, the fitting module is further configured to: and combining the minimum longitude with the minimum latitude and the maximum latitude in all target positions in the target construction area respectively, and combining the maximum longitude with the minimum latitude and the maximum latitude respectively to obtain the vertex of the minimum circumscribed polygon.
Fig. 6 illustrates a physical schematic diagram of an electronic device, as shown in fig. 6, which may include: processor 601, communication interface (Communications Interface) 602, memory 603 and communication bus 604, wherein processor 601, communication interface 602, memory 603 complete the communication between each other through communication bus 604. Processor 601 may invoke logic instructions in memory 603 to perform a worksite inspection mode determination method comprising: comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position; encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding-belonging areas to generate a target site area; calculating the suspicious degree of the target construction site area as a plausible construction site area according to the number and the times of all the working vehicles entering the target construction site area; and determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
Further, the logic instructions in the memory 603 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method of worksite inspection mode determination provided by the methods described above, the method comprising: comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position; encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding-belonging areas to generate a target site area; calculating the suspicious degree of the target construction site area as a plausible construction site area according to the number and the times of all the working vehicles entering the target construction site area; and determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the above-provided method of worksite inspection mode determination, the method comprising: comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position; encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding-belonging areas to generate a target site area; calculating the suspicious degree of the target construction site area as a plausible construction site area according to the number and the times of all the working vehicles entering the target construction site area; and determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area.
The system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The method for determining the inspection mode of the construction site is characterized by comprising the following steps of:
comparing the positioning position of each working vehicle with the pre-acquired approved work area, and taking the positioning position outside the approved work area as a target position;
encoding the target position based on a GeoHash algorithm, and merging a plurality of adjacent encoding-belonging areas to generate a target site area;
calculating the suspicious degree of the target construction site area as a plausible construction site area according to the number and the times of all the working vehicles entering the target construction site area;
determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area;
The calculating the suspicious degree of the target site area as the concealed site area according to the number and the times of all the working vehicles entering the target site area comprises the following steps:
acquiring the number and the times of all the working vehicles entering the target work area in each preset time period of the historical time period to be checked;
the number and the number of times of all the working vehicles entering the target construction area in each preset time period are added in a weighted mode;
and carrying out weighted addition again on the weighted addition results corresponding to all the preset time periods of the historical time period to be checked, and taking the weighted addition result again as the suspicious degree.
2. The method for determining a site inspection manner according to claim 1, wherein the merging the regions to which the plurality of adjacent codes belong to generate the target site region includes:
adding 1 and subtracting 1 to the longitude corresponding to each code to obtain the longitudes corresponding to other codes adjacent to each code;
1 adding and 1 subtracting operations are carried out on the latitudes corresponding to each code, and latitudes corresponding to other codes adjacent to each code are obtained;
taking the codes with the same longitude as the longitude of each code or the longitude corresponding to the other codes in all codes and the same latitude as the latitude of each code or the latitude corresponding to the other codes as adjacent codes of each code;
And merging the region to which each code belongs and the region to which the adjacent code of each code belongs to generate the target construction area.
3. The method for determining a worksite inspection mode according to any one of claims 1 to 2, wherein the determining the inspection mode of the target worksite area according to the target location and the suspicious degree included in the target worksite area includes:
fitting a minimum circumscribed circle containing all target positions in the target construction area according to the target positions contained in the target construction area;
and determining the inspection mode of the target site area according to the minimum circumscribed circle and the suspicious degree.
4. The method for determining a worksite inspection mode according to claim 3, wherein the fitting a minimum circumscribed circle including all target positions in the target worksite area according to the target positions included in the target worksite area includes:
acquiring the vertexes of the minimum circumscribed polygons of all target positions in the target construction area according to the longitudes and latitudes of all target positions in the target construction area;
calculating the circle center and the radius of the minimum circumscribed circle according to the vertex of the minimum circumscribed polygon;
And fitting the minimum circumscribed circle according to the circle center and the radius.
5. The worksite inspection mode determination method according to claim 4, wherein the minimum circumscribing polygon is a minimum circumscribing rectangle;
correspondingly, the obtaining the vertex of the minimum circumscribing polygon of all the target positions in the target construction area according to the longitude and latitude of all the target positions in the target construction area comprises the following steps:
and combining the minimum longitude with the minimum latitude and the maximum latitude in all target positions in the target construction area respectively, and combining the maximum longitude with the minimum latitude and the maximum latitude respectively to obtain the vertex of the minimum circumscribed polygon.
6. A worksite inspection mode determination system, comprising:
the comparison module is used for comparing the positioning position of each working vehicle with the pre-acquired authorized work area, and taking the positioning position outside the authorized work area as a target position;
the merging module is used for coding the target position based on a GeoHash algorithm, merging the areas to which a plurality of adjacent codes belong and generating a target construction area;
The calculation module is used for calculating the suspicious degree of the target construction site area as a concealed construction site area according to the number and the times of all the operation vehicles entering the target construction site area;
the determining module is used for determining an inspection mode of the target site area according to the target position and the suspicious degree contained in the target site area;
the computing module is specifically configured to:
acquiring the number and the times of all the working vehicles entering the target work area in each preset time period of the historical time period to be checked;
the number and the number of times of all the working vehicles entering the target construction area in each preset time period are added in a weighted mode;
and carrying out weighted addition again on the weighted addition results corresponding to all the preset time periods of the historical time period to be checked, and taking the weighted addition result again as the suspicious degree.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for worksite inspection mode determination of any one of claims 1 to 5 when the program is executed by the processor.
8. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the worksite inspection mode determination method of any one of claims 1 to 5.
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