CN112770261B - Irregular electronic fence positioning system and method - Google Patents
Irregular electronic fence positioning system and method Download PDFInfo
- Publication number
- CN112770261B CN112770261B CN202110030707.7A CN202110030707A CN112770261B CN 112770261 B CN112770261 B CN 112770261B CN 202110030707 A CN202110030707 A CN 202110030707A CN 112770261 B CN112770261 B CN 112770261B
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- electronic fence
- area
- position information
- locator
- cloud server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
Abstract
The invention discloses an irregular electronic fence positioning system and a method, wherein the system comprises: the system comprises a terminal, a locator, a map management module and a cloud server. The terminal is used for setting an initial area of the electronic fence; the positioner is used for acquiring and uploading position information of the positioner; the map management module is used for pre-demarcating a specific area on the electronic map; the cloud server establishes communication with the terminal, the locator and the map management module, and is used for deleting the overlapped area of the initial area and the specific area of the electronic fence to form a final electronic fence area; and the electronic fence system is also used for receiving and processing the self position information uploaded by the positioner, and judging whether the positioner is in the final electronic fence area according to the processed position information. The invention defines a safer electronic fence, and has strong safety and practicability and accurate positioning.
Description
Technical Field
The invention relates to the technical field of internet of things, in particular to a system and a method for positioning an irregular electronic fence.
Background
With the development of internet technology, the application of positioning technology is more and more extensive, internet of things products with positioning function are almost everywhere visible, the products have already done well in the positioning function, and people can obtain accurate geographical position information anytime and anywhere, but the positioning function is far from enough because the main purpose of positioning is to identify safety and danger. Therefore, aiming at the identification of safety and danger, the electronic fence technology is provided, an electronic fence is formed by taking a certain point as the center of a circle and a circle with a certain length as the radius, the electronic fence is positioned in the circle and is regarded as a safety area, and the electronic fence positioned outside the circle is regarded as exceeding the safety area and needs to be alarmed.
The inventor finds that, in the existing electronic fence technology, the area in the fence is directly regarded as a safe area, and no real environment is considered, and in fact, in the real environment, a dangerous factor often exists in the electronic fence, and the fence formed by taking a certain point as a center and a certain length as a radius cannot ensure that all the areas in the fence are safe. In addition, fence edge identification accuracy, i.e., the location determined by the positioning device, cannot be accurately represented in the electronic fence area. Based on these problems, the existing electronic fence technology is not practical. Few people accept the existing electronic fence technology in reality, and most people give up using the electronic fence technology.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an irregular electronic fence positioning system and method, which define a safer electronic fence and have strong practicability.
In order to achieve the above object, the present invention provides an irregular electronic fence positioning system, which includes: the system comprises a terminal, a locator, a map management module and a cloud server. The terminal is used for setting an initial area of the electronic fence; the positioner is used for acquiring and uploading position information of the positioner; the map management module is used for pre-demarcating a specific area on the electronic map; the cloud server establishes communication with the terminal, the locator and the map management module, and is used for deleting the overlapped area of the initial area and the specific area of the electronic fence to form a final electronic fence area; and the electronic fence system is also used for receiving and processing the self position information uploaded by the positioner, and judging whether the positioner is in the final electronic fence area according to the processed position information.
In an embodiment of the present invention, the terminal is configured to set, according to a certain point on the electronic map selected by the user and a radius value input by the user, a circular area with the point as a center and a radius as the radius value as an initial area of the electronic fence; the terminal is also used for taking the area manually defined by the user as the initial area of the electronic fence.
In one embodiment of the present invention, the positioner includes: sensor module, central processing unit, GPS orientation module, WIFI orientation module, wireless communication module. The sensor module is used for converting physical signals related to positioning into electric signals; the central processing unit is connected with the sensor module and used for judging whether the position of the locator changes or not according to the electric signal uploaded by the sensor module, and if the position of the locator changes, a trigger signal is sent out; the GPS positioning module is connected with the central processing unit and used for starting a GPS positioning algorithm after receiving the trigger signal so as to acquire first position information; the WIFI positioning module is connected with the central processing unit and used for starting a WIFI positioning algorithm after receiving the trigger signal so as to acquire second position information; the wireless communication module is connected with the central processing unit, and is used for acquiring third position information by adopting a base station positioning algorithm and uploading the first position information, the second position information and the third position information to the cloud server.
In an embodiment of the invention, the physical signal comprises one or more of a velocity, an angle, an air pressure.
In an embodiment of the present invention, the cloud server is configured to calculate the processed location information by combining the first location information, the second location information, and the third location information.
In an embodiment of the present invention, the cloud server is further configured to determine whether the locator is in the final electronic fence area according to the processed position information and a PNpoly algorithm, and the cloud server is further configured to send an alarm message to the terminal when it is determined that the locator is outside the final electronic fence area.
In an embodiment of the present invention, the cloud server is further configured to calculate a shortest distance between the locator and the final electronic fence area according to the processed location information and a vector inner product algorithm.
Based on the same inventive concept, the invention also provides an irregular electronic fence positioning method, which comprises the following steps: the map management module pre-demarcates a specific area on the electronic map; the terminal forms an initial area of the electronic fence according to the input of a user; the cloud server deletes the region where the initial region of the electronic fence is overlapped with the specific region to form a final electronic fence region; the locator acquires and uploads the position information of the locator; and the cloud server receives and processes the position information of the locator uploaded by the locator, and judges whether the locator is in the final electronic fence area or not according to the processed position information.
In an embodiment of the present invention, the method for locating an irregular electronic fence further includes: and if the locator is not in the final electronic fence area, sending alarm information to the terminal.
In an embodiment of the present invention, the method for positioning an irregular electronic fence further includes: and the cloud server calculates the shortest distance between the locator and the final electronic fence area according to the processed position information and a vector inner product algorithm.
Compared with the prior art, according to the irregular electronic fence positioning system and method, the conventional circular regular area design of the electronic fence is broken through, the specific area is preset in the map management module and can be a dangerous area artificially judged, the user sets the initial area of the electronic fence, and the cloud server removes the specific area in the initial area of the electronic fence before position judgment is carried out, so that the safety in the area of the electronic fence is ensured, and the safety and the practicability of the electronic fence technology can be improved. Preferably, in an embodiment, a plurality of positioning algorithms are combined during positioning, so that the positioning accuracy of the positioner can be improved. Preferably, in an embodiment, the cloud server further calculates a shortest distance between the locator and the final electronic fence area, so that accuracy of a relative position between the locator and the electronic fence area is ensured, and positioning accuracy can be further improved.
Drawings
Fig. 1 is a block diagram of an irregular electronic fence positioning system according to an embodiment of the present invention;
FIG. 2 is a component of a positioner according to an embodiment of the present invention;
fig. 3 is a block diagram of the steps of an irregular electronic fence positioning method according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
The inventor finds that in the existing electronic fence technology, the area in the fence is directly regarded as a safe area, the real environment is not considered, the fence formed by taking a certain point as the center and a certain length as the radius cannot ensure that all the areas in the fence are safe, and therefore the existing electronic fence technology is not practical.
In order to overcome the above problems, the present invention provides an irregular electronic fence positioning system, as shown in fig. 1, an embodiment of the irregular electronic fence positioning system includes: the system comprises a terminal 10, a locator 11, a map management module 12 and a cloud server 13.
The terminal 10 is used to set an initial area of the electronic fence. In one embodiment, the terminal 10 may set a circular area with a radius of the radius value as the initial area of the electronic fence, where the circular area is centered at a point on the electronic map selected by the user and the radius value is input by the user. The terminal 10 may also use an arbitrary area (not limited to a circle) manually defined by the user as the initial area of the electronic fence.
The locator 11 is used to acquire and upload its own position information.
The map management module 12 is used for pre-demarcating a specific area on the electronic map. The specific area may be determined manually according to actual requirements. For example, a dangerous area (e.g., a river ditch, a construction area, a region with many accidents, etc.) and a suspected dangerous area may be defined as specific areas. The practitioner needs to constantly maintain a delineation of a particular area.
The cloud server 13 establishes communication with the terminal 10, the locator 11 and the map management module 12, and is configured to delete an area where the initial area of the electronic fence and the specific area coincide to form a final electronic fence area; and is further configured to receive and process the own location information uploaded by the locator 11, and determine whether the locator 11 is in the final electronic fence area according to the processed location information.
Optionally, the cloud server 13 sends the final electronic fence area to the terminal 10 for storage, and the terminal 10 may visually display the final electronic fence area on the electronic map.
Therefore, the embodiment defines a safer electronic fence and has strong practicability.
In addition, the inventor also finds that in the prior art, the fence edge identification accuracy is poor, that is, the location determined by the locating device cannot be accurately represented in the electronic fence area, and in order to overcome the problem, in a preferred embodiment, a locator 11 is provided, and a plurality of locating algorithms are adopted to improve the locating accuracy. As shown in fig. 2, the positioner 11 of this embodiment includes: sensor module 11a, central processing unit 11b, GPS orientation module 11c, WIFI orientation module 11d, wireless communication module 11e.
The sensor module 11a is used to convert the physical signals related to positioning into electrical signals. Wherein the sensor module 11a comprises a plurality of sensors and the physical signal comprises one or more of speed, angle, air pressure.
The central processing unit 11b is connected to the sensor module 11a, and is configured to determine whether the position of the locator 11 changes according to the electrical signal uploaded by the sensor module 11a, and send a trigger signal if it is determined that the position of the locator 11 changes.
The GPS positioning module 11c is connected to the central processing unit 11b, and configured to start a GPS positioning algorithm after receiving the trigger signal, so as to obtain first position information.
And the WIFI positioning module 11d is connected with the central processor 11b and is used for starting a WIFI positioning algorithm after receiving the trigger signal so as to acquire second position information.
The wireless communication module 11e is connected to the central processing unit 11b, and is configured to acquire third location information by using a base station positioning algorithm, and upload the first location information, the second location information, and the third location information to the cloud server 13.
The cloud server 13 is configured to calculate the processed location information by combining the first location information, the second location information, and the third location information. For example, a weighted average algorithm, an averaging algorithm, or a data-preferred algorithm may be used to determine the position of the locator 11, thereby improving the accuracy of the location determination.
Preferably, the cloud server 13 is further configured to determine whether the locator 11 is in the final electronic fence area according to the processed position information and a PNpoly algorithm, and the cloud server 13 is further configured to send alarm information to the terminal 10 when it is determined that the locator 11 is outside the final electronic fence area. This can further improve the positioning accuracy and improve the calculation efficiency.
Preferably, the cloud server 13 is further configured to calculate a shortest distance between the locator 11 and the final electronic fence area according to the processed location information and a vector inner product algorithm. Therefore, the accuracy of the relative position between the locator 11 and the electronic fence area can be ensured, the locating precision is further improved, and on the other hand, efficient real-time position monitoring management can be realized. Preferably, when the shortest distance is determined, the number of points taken from the edge of the irregular electronic fence is not more than 24, and the distance between any two points is not more than 5km, which is a preferable value, because the number of points is too many, the calculation requirement on the server is too high, the server is too heavy, and the distance is too far to be beneficial to displaying the electronic fence on the map.
Based on the same inventive concept, as shown in fig. 3, an embodiment further provides an irregular electronic fence positioning method, which includes: step S1 to step S5.
In step S1, the map management module previously defines a specific area on the electronic map.
In step S2, the terminal forms an initial area of the electronic fence according to the input of the user.
In step S3, the cloud server deletes the area where the initial area of the electronic fence and the specific area coincide to form a final electronic fence area.
In step S4, the locator acquires and uploads its own position information.
In step S5, the cloud server receives and processes the position information of the locator uploaded by the locator, and determines whether the locator is in the final electronic fence area according to the processed position information. Specifically, the cloud server may determine whether the locator is in the final electronic fence area according to the processed location information and a PNpoly algorithm.
Preferably, the locator performs positioning by adopting a method combining a plurality of positioning algorithms, including a WIFI positioning algorithm, a base station positioning algorithm, a GPS positioning algorithm, and the like. The cloud server calculates data acquired by a plurality of positioning algorithms, for example, a weighted average algorithm, an average algorithm, or a data-preferred algorithm may be adopted to determine the position of the locator, thereby improving the positioning accuracy.
Preferably, the irregular electronic fence positioning method further comprises: and if the locator is not in the final electronic fence area, sending alarm information to the terminal.
Preferably, the irregular electronic fence positioning method further comprises: and the cloud server calculates the shortest distance between the locator and the final electronic fence area according to the processed position information and a vector inner product algorithm. Therefore, the accuracy of the relative position between the positioner and the electronic fence area can be ensured, the positioning precision is further improved, and efficient real-time position monitoring management can be realized.
In summary, according to the system and method for positioning an irregular electronic fence in the embodiment, a conventional circular regular area design of the electronic fence is broken through, a specific area is preset in a map management module, the specific area can be a dangerous area which is artificially judged, a user sets an initial area of the electronic fence, and a cloud server removes the specific area in the initial area of the electronic fence before position judgment is performed, so that the area of the electronic fence is safer, and thus the safety and the practicability of the electronic fence technology can be improved. Preferably, in an embodiment, a plurality of positioning algorithms are combined during positioning, so that the positioning accuracy of the positioner can be improved. Preferably, in an embodiment, the cloud server further calculates a shortest distance between the locator and the final electronic fence area, so that accuracy of a relative position between the locator and the electronic fence area is ensured, and positioning accuracy can be further improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. An irregular electronic fence positioning system, comprising:
the terminal is used for setting an initial area of the electronic fence;
the locator is used for acquiring and uploading own position information;
the map management module is used for pre-demarcating a specific area on the electronic map;
the cloud server is communicated with the terminal, the locator and the map management module and is used for deleting an area where the initial area of the electronic fence is overlapped with the specific area to form a final electronic fence area; the electronic fence system is also used for receiving and processing the self position information uploaded by the positioner, and judging whether the positioner is in the final electronic fence area according to the processed position information;
wherein the positioner comprises:
the sensor module is used for converting physical signals related to positioning into electric signals;
the central processing unit is connected with the sensor module and used for judging whether the position of the positioner changes or not according to the electric signal uploaded by the sensor module, and if the position of the positioner changes, a trigger signal is sent out;
the GPS positioning module is connected with the central processing unit and used for starting a GPS positioning algorithm after receiving the trigger signal so as to acquire first position information;
the WIFI positioning module is connected with the central processing unit and used for starting a WIFI positioning algorithm after receiving the trigger signal so as to acquire second position information;
the wireless communication module is connected with the central processing unit, is used for acquiring third position information by adopting a base station positioning algorithm, and is also used for uploading the first position information, the second position information and the third position information to the cloud server;
the terminal is used for setting a circular area which takes a certain point as the center of a circle and the radius as the radius value according to the certain point on the electronic map selected by the user and the radius value input by the user as an initial area of the electronic fence; the terminal is also used for taking an area manually defined by a user as an initial area of the electronic fence;
wherein the physical signals include one or more of velocity, angle, air pressure;
the cloud server is configured to calculate the processed location information by combining the first location information, the second location information, and the third location information;
the cloud server is further used for calculating the shortest distance between the locator and the final electronic fence area according to the processed position information and a vector inner product algorithm;
when the shortest distance is determined, the number of points taken from the edge of the irregular electronic fence is not more than 24, and the distance between any two points is not more than 5km;
the cloud server is further used for judging whether the locator is in the final electronic fence area or not according to the processed position information and a PNpoly algorithm, and sending alarm information to the terminal when the locator is judged to be outside the final electronic fence area.
2. An irregular electronic fence positioning method is characterized by comprising the following steps:
the map management module is used for pre-demarcating a specific area on the electronic map;
the terminal forms an initial area of the electronic fence according to the input of a user;
the cloud server deletes the overlapped area of the initial area of the electronic fence and the specific area to form a final electronic fence area;
the locator acquires and uploads the position information of the locator;
the cloud server receives and processes the position information of the locator uploaded by the locator, and judges whether the locator is in the final electronic fence area or not according to the processed position information;
wherein the positioner comprises:
the sensor module is used for converting physical signals related to positioning into electric signals;
the central processing unit is connected with the sensor module and used for judging whether the position of the positioner changes or not according to the electric signal uploaded by the sensor module, and if the position of the positioner changes, a trigger signal is sent out;
the GPS positioning module is connected with the central processing unit and used for starting a GPS positioning algorithm after receiving the trigger signal so as to acquire first position information;
the WIFI positioning module is connected with the central processing unit and used for starting a WIFI positioning algorithm after receiving the trigger signal so as to acquire second position information;
the wireless communication module is connected with the central processing unit, is used for acquiring third position information by adopting a base station positioning algorithm, and is also used for uploading the first position information, the second position information and the third position information to the cloud server;
the terminal is used for setting a circular area which takes a certain point as the center of a circle and the radius as the radius value according to the certain point on the electronic map selected by the user and the radius value input by the user as an initial area of the electronic fence; the terminal is also used for taking the area manually defined by the user as the initial area of the electronic fence;
wherein the physical signals include one or more of velocity, angle, air pressure;
the cloud server is configured to calculate the processed location information by combining the first location information, the second location information, and the third location information;
the cloud server is further used for calculating the shortest distance between the locator and the final electronic fence area according to the processed position information and a vector inner product algorithm;
when the shortest distance is determined, the number of points taken from the edge of the irregular electronic fence is not more than 24, and the distance between any two points is not more than 5km;
the cloud server is further used for judging whether the locator is in the final electronic fence area or not according to the processed position information and a PNpoly algorithm, and sending alarm information to the terminal when the locator is judged to be outside the final electronic fence area.
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| CN202110030707.7A CN112770261B (en) | 2021-01-11 | 2021-01-11 | Irregular electronic fence positioning system and method |
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