Intelligent coordinate acquisition tool and system thereof

Abstract

The invention discloses an intelligent coordinate acquisition tool and system, and the tool comprises a mobile phone fusion positioning part which is internally provided with a coordinate acquisition system; the coordinate acquisition system comprises a workbench login unit, an acquisition task unit, a data acquisition unit, a data transmission unit, a data storage unit, a data processing unit, a high-precision positioning unit, a fusion positioning unit and a remote monitoring unit, and belongs to the technical field of coordinate acquisition. According to environment indexes, high-precision positioning and fusion positioning are intelligently switched, positioning information can be rapidly obtained in different complex environments, environment information, satellite signal strength and the like are analyzed in real time in combination with a data processing unit, and coordinate information is subjected to high-precision correction. According to the method, satellite positioning, base station positioning, wifi positioning and differential positioning are comprehensively applied, weight indexes of different positioning sources are obtained through data analysis, optimal positioning results are selected for fusion, and the positioning accuracy and adaptability are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coordinate acquisition, and more particularly discloses an intelligent coordinate acquisition tool and a system thereof. Background Art

[0002] In the tobacco monopoly business system, retailers' geographic location information plays a crucial role, serving as an essential foundation for market management, sales planning, and strategic decision-making. The accuracy of this information is directly related to the optimization of cigarette delivery routes, the rational layout of retail locations, the effective implementation of market regulation, and the provision of precise customer service. However, traditional coordinate collection methods rely primarily on manual field measurements using traditional surveying tools such as theodolites and rangefinders. This process is not only time-consuming and labor-intensive, but also susceptible to human error, resulting in low-precision coordinate data. Summary of the Invention

[0003] Purpose of the invention: The purpose of the present invention is to solve the problem that the traditional coordinate collection method mainly relies on manual field measurement using traditional surveying and mapping tools such as theodolites and rangefinders. This process is not only time-consuming and labor-intensive, but also easily affected by human factors, resulting in low accuracy of the collected coordinate data.

[0004] In order to solve the above technical problems, according to one aspect of the present invention, more specifically, an intelligent coordinate acquisition tool and system thereof, comprising: a mobile phone fusion positioning member (1), a mounting frame (3) is magnetically arranged on the mobile phone fusion positioning member (1), a high-precision positioning member (4) is threadedly connected to the other end of the mounting frame (3), a camera module (2) is arranged on the mobile phone fusion positioning member (1), and a coordinate acquisition system is built in the mobile phone fusion positioning member (1);

[0005] The coordinate acquisition system includes: a workbench login unit, an acquisition task unit, a data acquisition unit, a data transmission unit, a data storage unit, a data processing unit, a high-precision positioning unit, a fusion positioning unit and a remote monitoring unit;

[0006] Workbench login unit: used to log in to the work platform to enter the coordinate collection application and perform single sign-on user matching;

[0007] Collection task unit: used to enter the collection task interface after successfully logging in through the workbench login unit. At the same time, collection tasks are divided into waiting for collection and collected;

[0008] Data collection unit: used to collect information data generated during the coordinate collection of the retailer's geographic location in real time;

[0009] Data transmission unit: used for real-time transmission of information data collected by the data collection unit;

[0010] Data storage unit: used to store the information data transmitted in real time by the data transmission unit;

[0011] Data processing unit: used to perform correction analysis on the information data stored in the data storage unit, obtain correction analysis results, and then forward the obtained processing and analysis results to the remote monitoring unit. In addition, different positioning units are selected according to the processing and analysis results, and the collected coordinate information is sampled and analyzed at the same time;

[0012] High-precision positioning unit: used to collect the coordinates of the retailer's geographic location through high-precision positioning equipment;

[0013] Fusion positioning unit: used to collect the coordinates of the retailer's geographic location through fusion positioning equipment;

[0014] Remote monitoring unit: used to display the information data stored in the data storage unit and the analysis results of the data processing unit in real time on the remote platform terminal. At the same time, when the result of the sampling analysis of the collected coordinate information is abnormal, an alarm is issued to the remote platform terminal.

[0015] Furthermore, the data acquisition unit includes: a magnetic field acquisition module, a humidity acquisition module, a coordinate acquisition module, a signal acquisition module and a satellite number acquisition module;

[0016] Magnetic field acquisition module: used to collect the magnetic field strength information data of the surrounding environment of the positioning point in real time;

[0017] Humidity collection module: used to collect humidity information data of the surrounding environment of the positioning point in real time;

[0018] Coordinate acquisition module: used to collect coordinate information data of positioning points in real time;

[0019] Signal acquisition module: used to collect satellite signal strength information data in real time;

[0020] Satellite number acquisition module: used to collect real-time information data on the number of valid satellites received by the positioning point signal.

[0021] Furthermore, the data processing unit includes: a data acquisition module, an analysis and judgment module, a result forwarding module and a sampling analysis module;

[0022] Data acquisition module: used for real-time acquisition of information data stored in the data storage unit;

[0023] Analysis and judgment module: used to correct and analyze the information data obtained by the data acquisition module and obtain the analysis and judgment results;

[0024] Result forwarding module: used to forward the results of analysis processed by the analysis and judgment module to the remote monitoring unit;

[0025] Sampling Analysis Module: This module is used to sample the collected coordinate information by combining the POI capabilities of AutoNavi's maps, and overlay the sampled point data onto the map to see the positional deviation between the two.

[0026] Furthermore, the remote monitoring unit includes: a data receiving module, a data display module and an abnormality alarm module;

[0027] Data receiving module: used for receiving the information data stored in the data storage unit and the analysis result information of the data processing unit in real time;

[0028] Data display module: used to display the information data received by the data receiving module on the remote platform terminal display screen;

[0029] Abnormal alarm module: used to send an alarm prompt to the remote platform terminal when the result of sampling analysis of the collected coordinate information is abnormal.

[0030] Furthermore, the coordinate acquisition system further comprises: a confirmation and photographing unit and an information submission unit;

[0031] Confirmation photo unit: After the retailer's coordinates are corrected, a photo button will pop up and the captured object will be photographed within the specified time;

[0032] Information submission unit: used to jump to the point information interface after confirming the photo taken by the photo taking unit, view the collected data and submit the collected information to the remote monitoring unit.

[0033] Furthermore, the analysis and judgment module can obtain the magnetic field strength and humidity of the environment around the positioning point and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the environmental index:

[0034]

[0035] Among them, E is the environmental index, time is the collection time of environmental information data, and F i is the magnetic field strength of the environment around the positioning point at the i-th second, F e The standard magnetic field strength collected for the preset coordinates, wet i is the humidity of the environment around the positioning point at the i-th second, wet e is the standard humidity collected at the preset coordinates, D is the density of obstructions in the surrounding environment of the positioning point, and Q is the number of valid satellites received by the positioning point signal.

[0036] Furthermore, the analysis and judgment module can obtain the coordinates of the positioning point, the signal strength of the satellite, and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the latitude and longitude coordinates after high-precision positioning correction:

[0037]

[0038] Among them, x G is the longitude of the positioning point after correction by the high-precision positioning unit, y G is the latitude of the positioning point after correction by the high-precision positioning unit, x g is the longitude of the positioning point before correction by the high-precision positioning unit, y g is the latitude of the positioning point before the high-precision positioning unit is corrected, Q is the number of valid satellites received by the positioning point signal, E is the environmental index, S j is the signal strength of the jth satellite, S avg is the average signal strength of effective satellites, Δx gj is the correction amount of the jth satellite to the longitude direction, Δy gj is the correction amount of the jth satellite in the latitude direction.

[0039] Furthermore, the analysis and judgment module can obtain the coordinates of the positioning point and the information data of the number of valid satellites received by the positioning point signal from the data acquisition module, and obtain the weight index of the fusion positioning through the analysis of the above acquired data:

[0040]

[0041] Among them, σ is the weight index, w trav is the number of effective signals of the positioning source, w wifi is the number of valid signals of the Wi-Fi positioning source, w sat is the number of effective signals from satellite positioning sources, w bs is the number of valid signals of the base station positioning source, N is the number of positioning coordinate sample measurements, test k is the kth positioning coordinate sample measurement value, test avg is the average value of multiple measurements.

[0042] Furthermore, the analysis and judgment module can obtain the coordinate information data of the positioning point from the data acquisition module, wherein the satellite positioning P s =(x s ,y s ), base station positioning P b =(x b ,y b ), wifi positioning P w =(xw ,y w ), and through the analysis of the data obtained above, the latitude and longitude coordinates after fusion positioning correction are obtained:

[0043]

[0044] Among them, α+β+γ=1, and in the case of x M is the longitude of the positioning point after correction of the fusion positioning unit, y M is the latitude of the positioning point after correction of the fusion positioning unit, α is the weight parameter of satellite fusion positioning, β is the weight parameter of base station fusion positioning, γ is the weight parameter of WiFi fusion positioning, and x s is the longitude of the satellite positioning point before the fusion positioning unit is corrected, x b is the longitude of the base station positioning point before the fusion positioning unit is corrected, x w The longitude of the wifi positioning point before the fusion positioning unit is corrected, y s is the latitude of the satellite positioning point before the fusion positioning unit is corrected, y b is the latitude of the base station positioning point before the fusion positioning unit is corrected, y w is the latitude of the Wi-Fi positioning point before the fusion positioning unit is corrected, Δx is the correction value of the differential positioning in the longitude direction, and Δy is the correction value of the differential positioning in the latitude direction.

[0045] The beneficial effects of the intelligent coordinate acquisition tool and system of the present invention are as follows: intelligent switching between high-precision positioning and fusion positioning according to the environmental index, the ability to quickly obtain positioning information in different complex environments, and the combination of the data processing unit to perform real-time analysis of environmental information and satellite signal strength, etc., to perform high-precision correction of coordinate information, reduce the time-consuming manual measurement and human errors, and achieve accurate acquisition of the geographic location of retailers. By comprehensively applying satellite positioning, base station positioning, WiFi positioning and differential positioning, and using data analysis to derive the weight index of different positioning sources, the optimal positioning results are selected for fusion, effectively improving the accuracy and adaptability of positioning. At the same time, the remote monitoring unit can receive and display the collected data and correction results in real time, and abnormal situations can promptly issue alarms, thereby improving the stability and reliability of the overall operation of the system. In addition, after the coordinate acquisition is completed, photos can be taken on site and uploaded to increase the reliability of position verification and optimize the entire coordinate acquisition and verification process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0047] Figure 1 Schematic diagram of the system principle;

[0048] Figure 2 Schematic diagram of the collection tool;

[0049] Figure 3 This is the login interface diagram of the work platform;

[0050] Figure 4 This is the user login interface diagram;

[0051] Figure 5 Submit interface diagram for point information;

[0052] Figure 6 This is the coordinate positioning interface diagram.

[0053] Explanation of the numbers: 1. Mobile phone integrated positioning part; 2. Camera module; 3. Mounting bracket; 4. High-precision positioning part. DETAILED DESCRIPTION

[0054] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0055] According to one aspect of the present invention, Figure 1-6 As shown, an intelligent coordinate collection tool and system are provided. First, the user logs into the work platform and enters the coordinate collection application through the workbench login unit on the mobile phone fusion positioning component 1, and performs single-point login user matching. If one mobile phone number corresponds to one user, the login is successful directly. If one mobile phone number corresponds to multiple users, one user needs to be manually selected to log in. Then, the collection task interface is entered through the collection task unit. At the same time, collection tasks are divided into pending collection and collected.

[0056] Then, the magnetic field acquisition module, humidity acquisition module, coordinate acquisition module, signal acquisition module and satellite number acquisition module in the data acquisition unit respectively collect the magnetic field strength, humidity, coordinates of the positioning point, satellite signal strength and the number of valid satellites received by the positioning point signal in real time.

[0057] Then, the collected data is transmitted to the data storage unit in real time through the data transmission unit, and the information data is obtained from the data storage unit through the data acquisition module in the data processing unit. Further, the obtained information data is processed and analyzed through the analysis and judgment module, and the analysis and judgment results are forwarded to the remote monitoring unit through the result forwarding module.

[0058] Afterwards, the sampling analysis module is used to sample the collected coordinate information by combining it with AutoNavi's map POI capabilities, and the sampled point data is superimposed on the map to see the position deviation between the two. The street view can also be combined with the photos taken when the points were collected to verify the specific location. In addition, for customers who do not have POI point information and street view, on-site collection and verification can be carried out. When the sampling analysis determines that the position deviation is large (the high-precision positioning deviation exceeds three meters; the fusion positioning deviation exceeds four meters), the abnormal alarm module will be triggered to alarm the remote platform control terminal.

[0059] The data receiving module in the remote monitoring unit can receive the information data stored in the data storage unit and the analysis results of the data processing unit in real time, and display the received information data on the remote platform control terminal display screen through the data display module.

[0060] The analysis and judgment module can obtain the magnetic field strength and humidity of the environment around the positioning point and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above data to obtain the environmental index:

[0061]

[0062] If E≥δ, it means that the environment around the coordinate collection point is complex, which can easily reduce the quality of satellite signal reception and transmission, and thus does not meet the requirements of high-precision positioning. The coordinate positioning will be directly switched to the fusion positioning unit. If E<δ, it means that the environment around the coordinate collection point meets the requirements of high-precision positioning. The high-precision positioning unit is used for coordinate positioning first. Among them, E is the environmental index, time is the collection time of environmental information data, and F i is the magnetic field strength of the environment around the positioning point at the i-th second, F e The standard magnetic field strength collected for the preset coordinates, wet i is the humidity of the environment around the positioning point at the i-th second, wet e is the standard humidity collected at the preset coordinates, D is the density of obstructions in the surrounding environment of the positioning point, and Q is the number of valid satellites received by the positioning point signal.

[0063] The analysis and judgment module can obtain the coordinates of the positioning point, the signal strength of the satellite, and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the longitude and latitude coordinates of the high-precision positioning element 4 after high-precision positioning correction:

[0064]

[0065] Among them, x G is the longitude of the positioning point after correction by the high-precision positioning unit, yG is the latitude of the positioning point after correction by the high-precision positioning unit, x g is the longitude of the positioning point before correction by the high-precision positioning unit, y g is the latitude of the positioning point before the high-precision positioning unit is corrected, Q is the number of valid satellites received by the positioning point signal, E is the environmental index, S j is the signal strength of the jth satellite, S avg is the average signal strength of effective satellites, Δx gj is the correction amount of the jth satellite to the longitude direction, Δy gj is the correction amount of the jth satellite in the latitude direction.

[0066] The analysis and judgment module can obtain the coordinates of the positioning point and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the weight index of the fusion positioning:

[0067]

[0068] Among them, σ is the weight index, w trav is the number of effective signals of the positioning source, w wifi is the number of valid signals of the Wi-Fi positioning source, w sat is the number of effective signals from satellite positioning sources, w bs is the number of valid signals of the base station positioning source, N is the number of positioning coordinate sample measurements, test k is the kth positioning coordinate sample measurement value, test avg is the average value of multiple measurements.

[0069] The analysis and judgment module can obtain the coordinate information data of the positioning point from the data acquisition module, wherein the satellite positioning P s =(x s ,y s ), base station positioning P b =(x b ,y b ), wifi positioning P w =(x w ,y w ), and through the analysis of the data obtained above, the latitude and longitude coordinates on the mobile phone fusion positioning element 1 after fusion positioning correction are obtained:

[0070]

[0071] Among them, α+β+γ=1, and in the case of x M is the longitude of the positioning point after correction of the fusion positioning unit, y Mis the latitude of the positioning point after correction of the fusion positioning unit, α is the weight parameter of satellite fusion positioning, β is the weight parameter of base station fusion positioning, γ is the weight parameter of WiFi fusion positioning, x is the longitude of the satellite positioning point before correction of the fusion positioning unit, x b is the longitude of the base station positioning point before the fusion positioning unit is corrected, x w The longitude of the wifi positioning point before the fusion positioning unit is corrected, y s is the latitude of the satellite positioning point before the fusion positioning unit is corrected, y b is the latitude of the base station positioning point before the fusion positioning unit is corrected, y w The latitude of the wifi positioning point before the fusion positioning unit is corrected, Δx is the correction value of the differential positioning to the longitude direction, and Δy is the correction value of the differential positioning to the latitude direction. It should be noted that after the collected positioning coordinates are corrected and meet the required positioning accuracy, the "Confirm" button on the coordinate positioning interface will change from gray to orange and can be operated. Click the "Confirm" button to proceed to the next step "Photograph"

[0072] Finally, after confirming that the camera unit has completed the correction of the retailer's coordinates, the camera button pops up and the captured object is photographed within 30 seconds. Then, the information submission unit jumps to the point information interface, where the collected data can be viewed and submitted to the remote monitoring unit.

[0073] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An intelligent coordinate acquisition tool and system thereof, characterized in that: include: A mobile phone fusion positioning piece (1), wherein a mounting frame (3) is magnetically arranged on the mobile phone fusion positioning piece (1), a high-precision positioning piece (4) is threadedly connected to the other end of the mounting frame (3), a camera module (2) is arranged on the mobile phone fusion positioning piece (1), and a coordinate acquisition system is built in the mobile phone fusion positioning piece (1); The coordinate acquisition system includes: a workbench login unit, an acquisition task unit, a data acquisition unit, a data transmission unit, a data storage unit, a data processing unit, a high-precision positioning unit, a fusion positioning unit and a remote monitoring unit; Workbench login unit: used to log in to the work platform to enter the coordinate collection application and perform single sign-on user matching; Collection task unit: used to enter the collection task interface after successfully logging in through the workbench login unit. At the same time, collection tasks are divided into waiting for collection and collected; Data collection unit: used to collect information data generated during the coordinate collection of the retailer's geographic location in real time; Data transmission unit: used for real-time transmission of information data collected by the data collection unit; Data storage unit: used to store the information data transmitted in real time by the data transmission unit; Data processing unit: used to perform correction analysis on the information data stored in the data storage unit, obtain correction analysis results, and then forward the obtained processing and analysis results to the remote monitoring unit. In addition, different positioning units are selected according to the processing and analysis results, and the collected coordinate information is sampled and analyzed at the same time; High-precision positioning unit: used to collect the coordinates of the retailer's geographic location through high-precision positioning equipment; Fusion positioning unit: used to collect the coordinates of the retailer's geographic location through fusion positioning equipment; Remote monitoring unit: used to display the information data stored in the data storage unit and the analysis results of the data processing unit in real time on the remote platform terminal. At the same time, when the result of the sampling analysis of the collected coordinate information is abnormal, an alarm is issued to the remote platform terminal.

2. The intelligent coordinate acquisition tool and system according to claim 1, characterized in that: The data acquisition unit includes: a magnetic field acquisition module, a humidity acquisition module, a coordinate acquisition module, a signal acquisition module and a satellite number acquisition module; Magnetic field acquisition module: used to collect the magnetic field strength information data of the surrounding environment of the positioning point in real time; Humidity collection module: used to collect humidity information data of the surrounding environment of the positioning point in real time; Coordinate acquisition module: used to collect coordinate information data of positioning points in real time; Signal acquisition module: used to collect satellite signal strength information data in real time; Satellite number acquisition module: used to collect real-time information data on the number of valid satellites received by the positioning point signal.

3. The intelligent coordinate acquisition tool and system according to claim 2, characterized in that: The data processing unit includes: a data acquisition module, an analysis and judgment module, a result forwarding module and a sampling analysis module; Data acquisition module: used for real-time acquisition of information data stored in the data storage unit; Analysis and judgment module: used to correct and analyze the information data obtained by the data acquisition module and obtain the analysis and judgment results; Result forwarding module: used to forward the results of analysis processed by the analysis and judgment module to the remote monitoring unit; Sampling Analysis Module: This module is used to sample the collected coordinate information by combining the POI capabilities of AutoNavi's maps, and overlay the sampled point data onto the map to see the positional deviation between the two.

4. The intelligent coordinate acquisition tool and system according to claim 3, characterized in that: The remote monitoring unit includes: a data receiving module, a data display module and an abnormality alarm module; Data receiving module: used for receiving the information data stored in the data storage unit and the analysis result information of the data processing unit in real time; Data display module: used to display the information data received by the data receiving module on the remote platform terminal display screen; Abnormal alarm module: used to send an alarm prompt to the remote platform terminal when the result of sampling analysis of the collected coordinate information is abnormal.

5. The intelligent coordinate acquisition tool and system according to claim 4, characterized in that: The coordinate acquisition system further includes: a confirmation and photographing unit and an information submission unit; Confirmation photo unit: After the retailer's coordinates are corrected, a photo button will pop up and the captured object will be photographed within the specified time; Information submission unit: used to jump to the point information interface after confirming the photo taken by the photo taking unit, view the collected data and submit the collected information to the remote monitoring unit.

6. The intelligent coordinate acquisition tool and system according to claim 5, characterized in that: The analysis and judgment module can obtain the magnetic field strength and humidity of the environment around the positioning point and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above data to obtain the environmental index: Among them, E is the environmental index, time is the collection time of environmental information data, and F i is the magnetic field strength of the environment around the positioning point at the i-th second, F e The standard magnetic field strength collected for the preset coordinates, wet i is the humidity of the environment around the positioning point at the i-th second, wet e is the standard humidity collected at the preset coordinates, D is the density of obstructions in the surrounding environment of the positioning point, and Q is the number of valid satellites received by the positioning point signal.

7. The intelligent coordinate acquisition tool and system according to claim 6, characterized in that: The analysis and judgment module can obtain the coordinates of the positioning point, the signal strength of the satellite, and the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the latitude and longitude coordinates after high-precision positioning correction: Among them, x G is the longitude of the positioning point after correction by the high-precision positioning unit, y G is the latitude of the positioning point after correction by the high-precision positioning unit, x g is the longitude of the positioning point before correction by the high-precision positioning unit, y g is the latitude of the positioning point before the high-precision positioning unit is corrected, Q is the number of valid satellites received by the positioning point signal, E is the environmental index, S j is the signal strength of the i-th satellite, S avg is the average signal strength of effective satellites, Δx gj is the correction amount of the jth satellite to the longitude direction, Δy gj is the correction amount of the jth satellite in the latitude direction.

8. The intelligent coordinate acquisition tool and system according to claim 7, characterized in that: The analysis and judgment module can obtain the coordinates of the positioning point and the information data of the number of valid satellites received by the positioning point signal from the data acquisition module, and analyze the above acquired data to obtain the weight index of the fusion positioning: Among them, σ is the weight index, w trav is the number of effective signals of the positioning source, w wifi is the number of valid signals of the Wi-Fi positioning source, w sat is the number of effective signals from satellite positioning sources, w bs is the number of valid signals of the base station positioning source, N is the number of positioning coordinate sample measurements, test k is the kth positioning coordinate sample measurement value, test avg is the average value of multiple measurements.

9. The intelligent coordinate acquisition tool and system according to claim 8, characterized in that: The analysis and judgment module can obtain the coordinate information data of the positioning point from the data acquisition module, wherein the satellite positioning P s =(x s ,y s ), base station positioning P b =(x b ,y b ), wifi positioning P w =(x w ,y w ), and through the analysis of the data obtained above, the latitude and longitude coordinates after fusion positioning correction are obtained: Among them, α+β+γ=1, and in the case of x M is the longitude of the positioning point after correction of the fusion positioning unit, y M is the latitude of the positioning point after correction of the fusion positioning unit, α is the weight parameter of satellite fusion positioning, β is the weight parameter of base station fusion positioning, γ is the weight parameter of WiFi fusion positioning, and x s is the longitude of the satellite positioning point before the fusion positioning unit is corrected, x b is the longitude of the base station positioning point before the fusion positioning unit is corrected, x w The longitude of the wifi positioning point before the fusion positioning unit is corrected, y s is the latitude of the satellite positioning point before the fusion positioning unit is corrected, y b is the latitude of the base station positioning point before the fusion positioning unit is corrected, y w is the latitude of the Wi-Fi positioning point before the fusion positioning unit is corrected, Δx is the correction value of the differential positioning in the longitude direction, and Δy is the correction value of the differential positioning in the latitude direction.

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