CN115515077B - UAV-based WSN data acquisition track dynamic generation method and system - Google Patents
UAV-based WSN data acquisition track dynamic generation method and system Download PDFInfo
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Abstract
The invention discloses a WSN data acquisition track dynamic generation method and a system based on UAVs (unmanned aerial vehicles). By arranging various monitoring devices on an unmanned aerial vehicle carrier, unmanned aerial vehicle identification is carried out on a region to be monitored of a region blind spot, and building information, security information and environmental data are constructed; the problem of can't realize not having the dead angle control to whole region through installing monitoring facilities at the scene in traditional intelligent residential district is used is overcome, utilize unmanned aerial vehicle to carry out the data acquisition of whole region and carry out the dynamic monitoring show, can carry out the intelligent monitoring of all-round, no dead angle to whole target area, realize the real-time data dynamic show of target area, provide the real-time supervision data of all-round, no dead angle for the regional staff of target, further provide solution for intelligent residential district, wisdom family.
Description
Technical Field
The invention relates to the technical field of big data processing, in particular to a WSN data acquisition track dynamic generation method and system based on UAVs.
Background
UAVs, i.e. unmanned planes, simply "drones". An unmanned aircraft operated by a radio remote control device and a self-contained program control device, or operated autonomously, either completely or intermittently, by an on-board computer. Unmanned aircraft are often more suited to tasks that are too "fool, messy, or dangerous" than manned aircraft. Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles are classified into reconnaissance aircraft and target aircraft; in the civil aspect, the unmanned aerial vehicle + the industry application is really just needed by the unmanned aerial vehicle; the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, romantic manufacturing and the like, the application of the unmanned aerial vehicle is greatly expanded, and the developed countries also actively expand the industrial application and develop the unmanned aerial vehicle technology.
A WSN, a Wireless Sensor network (Wireless Sensor Networks), is a distributed sensing network whose tips are sensors that can sense and examine the outside world. The sensors in the WSN communicate in a wireless mode, so that the network setting is flexible, the position of equipment can be changed at any time, and the equipment can be connected with the Internet in a wired or wireless mode; a multi-hop ad hoc network formed by wireless communication.
With the development of the technology, the application of the WSN technology is more and more extensive; particularly in the field of artificial intelligence such as intelligent communities, intelligent families and the like, cameras, infrared sensors, radar sensors and other various environment monitoring sensors are arranged in the communities and are used for security protection, environment monitoring and application; therefore, a series of functional systems are realized, and a wireless sensor network is formed. However, in practical application, due to the factors that the position of the sensor, the effective distance of data transmission, the data acquisition are affected by the object vision, etc., the WSN application field in the intelligent cell has a large limitation at present, only a wireless sensor network can be formed in a local area, and the intelligent monitoring in all directions and without dead angles can not be realized in the whole area.
In recent years, with the development of unmanned aerial vehicle UAV technology, unmanned aerial vehicles are widely applied in various fields, and the dilemma is expected to be broken in the future. This application is on the basis of unmanned aerial vehicle UAV technique, explore unmanned aerial vehicle at intelligent residential district, the practical application of wisdom family, a WSN data acquisition orbit dynamic generation strategy based on UAV is researched and developed, can carry out the intelligence control all-round to whole target area, no dead angle, realize the real-time data dynamic display of target area, provide the real-time supervision data all-round for the regional staff of target, no dead angle, further for intelligent residential district, wisdom family provides the solution.
Disclosure of Invention
The invention provides a WSN data acquisition track dynamic generation method and a WSN data acquisition track dynamic generation system based on UAVs (unmanned aerial vehicles), which can carry out omnibearing non-dead-angle intelligent monitoring on the whole target area, realize real-time data dynamic display of the target area, provide omnibearing non-dead-angle real-time monitoring data for target area workers and further provide solutions for intelligent communities and intelligent families.
In order to solve the technical problem, an embodiment of the present invention provides a method for dynamically generating a WSN data acquisition trajectory based on a UAV, which is applied to an unmanned aerial vehicle carrier, wherein the unmanned aerial vehicle carrier is provided with a plurality of monitoring devices, and each monitoring device includes a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; the method comprises the following steps:
acquiring an overall layout on a target area, and carrying out gridding processing on the overall layout to obtain a grid layout; the overall layout diagram is marked with a place for setting the monitoring equipment on site and a corresponding monitoring range;
dividing a monitored area and an area to be monitored in the grid layout according to a place where monitoring equipment is arranged on site and a corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored by the unmanned aerial vehicle carrier;
receiving monitoring data of the unmanned aerial vehicle carrier in the area to be monitored, wherein the monitoring data comprises image data collected by a camera, infrared data collected by an infrared sensor, radar data collected by a radar sensor and environmental data collected by an environmental monitoring sensor;
generating building information of an area to be monitored as first dimension information according to the image data and the radar data;
generating security information of an area to be monitored as second dimension information according to the infrared data and the image data;
and generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
As a preferred scheme, the step of generating building information of an area to be monitored as first dimension information according to the image data and the radar data specifically includes:
identifying the building features in the image data to obtain building plane information in an area to be monitored;
extracting radar data corresponding to the building features to obtain building space information corresponding to each building feature;
constructing a space coordinate system in the area to be monitored, and generating three-dimensional information of the building characteristics in the area to be monitored according to the building plane information and the building space information;
and adjusting the three-dimensional information of the building characteristics in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored which are divided in the grid layout chart to obtain the building information of the area to be monitored as first dimension information.
As a preferred scheme, the step of adjusting three-dimensional information of building features in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored divided in the grid layout drawing specifically includes:
determining the area boundary between the monitored area and the area to be monitored according to the monitoring range area corresponding to the monitoring equipment arranged in the monitored area;
identifying the region boundary in the image data, and determining a monitoring blind spot on the region boundary according to a preset rule;
calculating the data proportion of the monitoring blind point to the three-dimensional information corresponding to the characteristics of the buildings in the area to be monitored, and taking the data proportion as a first data relation value;
selecting a plurality of reference points in the monitored area, and determining the data proportion of the three-dimensional information corresponding to the monitoring blind points and the reference points as a second data relation value;
and correspondingly adjusting the three-dimensional information of the building characteristics in the area to be monitored according to the proportion between the first data relation value and the second data relation value.
As a preferred scheme, the step of generating security information of an area to be monitored as second dimension information according to the infrared data and the image data specifically includes:
the method comprises the steps that the movement condition of a living being in a region to be monitored is judged in real time through infrared data, and when the fact that the infrared data corresponding to the same living being change in two continuous time units is determined, the target position of the living being moving currently in a grid layout is calculated according to the infrared data changing in the two continuous time units;
acquiring the target position, extracting image data at the current time, performing feature recognition on the extracted image data, and determining a biological type and a behavior type corresponding to a currently moving organism;
generating a security risk value according to the biological type and the behavior type, and generating a corresponding security early warning level according to the security risk value;
and according to the biological type, the behavior type and the security early warning level, correlating in the target position of the grid layout drawing to generate security information as second dimension information.
As a preferred scheme, the step of generating a security risk value according to the biological type and the behavior type specifically includes:
predicting the next execution action of the currently moving creature according to the behavior type of the currently moving creature to obtain a predicted behavior;
determining the visual direction of the currently moving living being according to the feature recognition result of the extracted image data, and determining the target object of the currently moving living being according to the visual direction and the predicted behavior;
calculating a distance value between the target object and a currently moving living being according to the position of the target object in the grid layout;
and according to the distance value, the predicted behavior and the type of the living beings, judging the risk condition brought to the target object by the currently moving living beings in the next execution action, and generating a security risk value.
As a preferred scheme, the calculation formula for generating the security risk value is as follows:
wherein the content of the first and second substances,
the value is a security risk value;
to define different constant values for different biotypes,
j in (1) is a biotype;
to define different constant values based on different predicted behavior,
i in (b) is the predicted behavior;
in order to define the minimum distance at which different predicted behaviors will affect the target object according to the preset rules,
defining the maximum distance of the influence of different prediction behaviors on a target object according to a preset rule;
and
respectively are preset weighted values which are constants;
is a distance value.
As a preferred scheme, the step of generating the dynamic monitoring information of the area to be monitored in real time according to the environmental data, the first dimension information, and the second dimension information specifically includes:
establishing a three-dimensional model, and constructing a building frame in the three-dimensional model by taking the first dimension information as bottom data;
selecting a plurality of grid points in the area to be monitored on the grid layout drawing, and adjusting the position of the building frame according to the actual positions of the grid points in the three-dimensional model to ensure that the positions on the grid layout drawing are consistent with the actual positions;
according to the position of the second dimension information in the building frame, associating the second dimension information to a corresponding node of the building frame, and associating the second dimension information with corresponding first dimension information;
according to the position corresponding to the environment data, the environment data are correlated to the corresponding node of the building frame, and the environment data are correlated with the corresponding first dimension information;
according to a position instruction input by a user, determining first dimension information corresponding to the position instruction in the three-dimensional model, and dynamically displaying environment data and second dimension information associated with the first dimension information.
Preferably, the environment monitoring sensor includes: the device comprises a temperature sensor, an air temperature and humidity sensor, an evaporation sensor, a rainfall sensor, an illumination sensor and an air speed and wind direction sensor.
Correspondingly, the invention also provides a WSN data acquisition track dynamic generation system based on the UAV, which is applied to the UAV carrier, wherein the UAV carrier is provided with a plurality of monitoring devices, and each monitoring device comprises a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; the system comprises: the system comprises a grid processing module, a region division module, a data acquisition module, a first dimension module, a second dimension module and a dynamic monitoring module;
the grid processing module is used for acquiring an overall layout diagram on a target area and carrying out gridding processing on the overall layout diagram to obtain a grid layout diagram; the overall layout diagram is marked with a place for setting monitoring equipment on site and a corresponding monitoring range;
the area division module is used for dividing a monitored area and an area to be monitored in the grid layout according to a place where monitoring equipment is arranged on site and a corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored by the unmanned aerial vehicle carrier;
the data acquisition module is used for receiving monitoring data of the unmanned aerial vehicle carrier in the area to be monitored, and comprises image data acquired by a camera, infrared data acquired by an infrared sensor, radar data acquired by a radar sensor and environmental data acquired by an environmental monitoring sensor;
the first dimension module is used for generating building information of an area to be monitored as first dimension information according to the image data and the radar data;
the second dimension module is used for generating security information of an area to be monitored as second dimension information according to the infrared data and the image data;
and the dynamic monitoring module is used for generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
As a preferred solution, the first dimension module is specifically configured to: identifying the building features in the image data to obtain building plane information in an area to be monitored; extracting radar data corresponding to the building features to obtain building space information corresponding to each building feature; constructing a space coordinate system in the area to be monitored, and generating three-dimensional information of the building characteristics in the area to be monitored according to the building plane information and the building space information; and adjusting the three-dimensional information of the building characteristics in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored which are divided in the grid layout chart to obtain the building information of the area to be monitored as first dimension information.
As a preferred scheme, the first dimension module is configured to adjust, according to a monitored area and an area to be monitored divided in the grid layout diagram, three-dimensional information of building features in the area to be monitored with the monitored area as a reference, and specifically includes: determining a region boundary between the monitored region and a region to be monitored according to a monitoring range region corresponding to monitoring equipment arranged in the monitored region; identifying the region boundary in the image data, and determining a monitoring blind spot on the region boundary according to a preset rule; calculating the data proportion of the monitoring blind point to the three-dimensional information corresponding to the characteristics of the buildings in the area to be monitored, and taking the data proportion as a first data relation value; selecting a plurality of reference points in the monitored area, and determining the data proportion of the three-dimensional information corresponding to the monitoring blind points and the reference points as a second data relation value; and correspondingly adjusting the three-dimensional information of the building characteristics in the area to be monitored according to the proportion between the first data relation value and the second data relation value.
As a preferred scheme, the second dimension module is specifically configured to: the method comprises the steps that the movement condition of a living being in a region to be monitored is judged in real time through infrared data, and when the fact that the infrared data corresponding to the same living being change in two continuous time units is determined, the target position of the living being moving currently in a grid layout is calculated according to the infrared data changing in the two continuous time units; acquiring the target position, extracting image data at the current time, performing feature recognition on the extracted image data, and determining a biological type and a behavior type corresponding to a currently moving organism; generating a security risk value according to the biological type and the behavior type, and generating a corresponding security early warning level according to the security risk value; and according to the biological type, the behavior type and the security early warning level, correlating in the target position of the grid layout drawing to generate security information as second dimension information.
As a preferred scheme, the second dimension module is configured to generate a security risk value according to the biological type and the behavior type, and specifically includes: predicting the next execution action of the currently moving creature according to the behavior type of the currently moving creature to obtain a predicted behavior; determining the visual direction of the currently moving living being according to the feature recognition result of the extracted image data, and determining the target object of the currently moving living being according to the visual direction and the predicted behavior; calculating a distance value between the target object and a currently moving living being according to the position of the target object in the grid layout; and according to the distance value, the predicted behavior and the type of the living beings, judging the risk condition brought to the target object by the currently moving living beings in the next execution action, and generating a security risk value.
As a preferred scheme, the calculation formula for generating the security risk value is as follows:
wherein the content of the first and second substances,
the value is a security risk value;
to define different constant values for different types of organisms,
j in (b) is a biotype;
to define different constant values based on different predicted behavior,
i in (b) is the predicted behavior;
in order to define the minimum distance at which different predicted behaviors have an impact on the target object according to preset rules,
defining the maximum distance of the influence of different prediction behaviors on a target object according to a preset rule;
and
respectively are preset weighted values which are constants;
is a distance value.
As a preferred scheme, the dynamic monitoring module is specifically configured to: establishing a three-dimensional model, and constructing a building frame in the three-dimensional model by taking the first dimension information as bottom data; selecting a plurality of grid points in the area to be monitored on the grid layout drawing, and adjusting the position of the building frame according to the actual positions of the grid points in the three-dimensional model to ensure that the positions on the grid layout drawing are consistent with the actual positions; according to the position of the second dimension information in the building frame, associating the second dimension information to a corresponding node of the building frame, and associating the second dimension information with corresponding first dimension information; according to the position corresponding to the environment data, the environment data are correlated to the corresponding node of the building frame, and the environment data are correlated with the corresponding first dimension information; according to a position instruction input by a user, first dimension information corresponding to the position instruction is determined in the three-dimensional model, and environment data and second dimension information related to the first dimension information are dynamically displayed.
Preferably, the environment monitoring sensor includes: the device comprises a temperature sensor, an air temperature and humidity sensor, an evaporation sensor, a rainfall sensor, an illumination sensor and an air speed and wind direction sensor.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls an apparatus on which the computer-readable storage medium is located to perform any one of the above-mentioned methods for dynamically generating a trajectory for UAV-based WSN data acquisition.
An embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor, when executing the computer program, implements the UAV-based WSN data acquisition trajectory dynamic generation method according to any one of the above items.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the technical scheme, various monitoring devices are arranged on an unmanned aerial vehicle carrier, unmanned aerial vehicle identification is carried out on the area to be monitored of the area blind spot, and building information, security information and environmental data are constructed; the problem of can't realize not having the dead angle control to whole region through installing monitoring facilities at the scene in traditional intelligent residential district is used is overcome, utilize unmanned aerial vehicle to carry out the data acquisition of whole region and carry out the dynamic monitoring show, can carry out the intelligent monitoring of all-round, no dead angle to whole target area, realize the real-time data dynamic show of target area, provide the real-time supervision data of all-round, no dead angle for the regional staff of target, further provide solution for intelligent residential district, wisdom family.
Drawings
FIG. 1: the step flow chart of the WSN data acquisition track dynamic generation method based on the UAV is provided by the embodiment of the invention;
FIG. 2: the invention provides a structural schematic diagram of a WSN data acquisition track dynamic generation system based on a UAV (unmanned aerial vehicle);
FIG. 3: the structure diagram of an embodiment of the terminal device provided by the embodiment of the invention is shown.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a flowchart of steps of a method for dynamically generating a WSN data acquisition trajectory based on a UAV according to an embodiment of the present invention is shown. The method is applied to an unmanned aerial vehicle carrier, wherein various monitoring devices are arranged on the unmanned aerial vehicle carrier, and each monitoring device comprises a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; in this embodiment, the environment monitoring sensor includes: the device comprises a temperature sensor, an air temperature and humidity sensor, an evaporation sensor, a rainfall sensor, an illumination sensor and a wind speed and direction sensor.
The method comprises steps 101 to 106, and the steps are as follows:
step 101, acquiring an overall layout on a target area, and performing gridding processing on the overall layout to obtain a grid layout; and the overall layout diagram is marked with a place for setting the monitoring equipment on site and a corresponding monitoring range.
Specifically, the overall layout on the smart cell (target area) can be obtained by a residential cell construction planning map or the like. It should be understood that the overall layout map refers to the overall layout situation in the target area, and does not refer to the situations such as building details, and can be obtained by means of planning maps or remote sensing images, and the steps are not limited. And meshing the whole layout chart to better divide areas in subsequent steps, and marking corresponding nodes in the meshes according to different characteristics to finish position marking.
102, dividing a monitored area and an area to be monitored in the grid layout according to a place where monitoring equipment is arranged on site and a corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored by the unmanned aerial vehicle carrier.
In particular, we divide the smart cell into two types of areas, one where monitoring devices, e.g., cameras, sensors, etc., can be field installed. Monitored areas where data acquisition can be performed with off-line equipment in the field. In the process of distinguishing the monitored area, the monitoring coverage area can be judged according to the function and the equipment model of each monitoring equipment, so that the monitoring area corresponding to the monitored area is determined. The other area is an area to be monitored, which cannot be subjected to data acquisition by field installation of monitoring equipment. The above-mentioned area to be monitored is actually the area in which the data acquisition of the blind area needs to be performed by the unmanned aerial vehicle UAV in this research. Often this type of area to be monitored is often found in special buildings, terrain that is not suitable for installation of equipment, dark spaces that are affected by environmental factors and cannot accommodate equipment, etc. In this research, utilize unmanned aerial vehicle to carry out data acquisition to above-mentioned blind area, can overcome the difficult problem of the unable erection equipment in scene.
Step 103, receiving monitoring data of the unmanned aerial vehicle carrier in the area to be monitored, wherein the monitoring data comprises image data collected by a camera, infrared data collected by an infrared sensor, radar data collected by a radar sensor and environmental data collected by an environmental monitoring sensor.
Specifically, in order to realize multi-data display of the smart cell, in general, we must have several data, including image data of the surrounding environment by the camera, infrared sensing data of the living body by the infrared sensor, radar signals of the radar sensor for detecting the shape object such as the building, and environment data of the surrounding environment factors detected by various environment monitoring sensors.
And 104, generating building information of an area to be monitored as first dimension information according to the image data and the radar data.
In this embodiment, the step 104 specifically includes: step 1041, identifying the building features in the image data to obtain building plane information in the area to be monitored; step 1042, extracting radar data corresponding to the building features to obtain building space information corresponding to each building feature; step 1043, constructing a space coordinate system in the area to be monitored, and generating three-dimensional information of building characteristics in the area to be monitored according to the building plane information and the building space information; step 1044 of adjusting three-dimensional information of building features in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored divided in the grid layout drawing to obtain building information of the area to be monitored as first dimension information.
Wherein the step 1044 specifically includes: determining a region boundary between the monitored region and a region to be monitored according to a monitoring range region corresponding to monitoring equipment arranged in the monitored region; identifying the region boundary in the image data, and determining a monitoring blind spot on the region boundary according to a preset rule; calculating the data proportion of the monitoring blind point to the three-dimensional information corresponding to the characteristics of the buildings in the area to be monitored, and taking the data proportion as a first data relation value; selecting a plurality of reference points in the monitored area, and determining the data proportion of the three-dimensional information corresponding to the monitoring blind points and the reference points as a second data relation value; and correspondingly adjusting the three-dimensional information of the building characteristics in the area to be monitored according to the proportion between the first data relation value and the second data relation value.
Specifically, in a research, in order to overcome the problem of a blind area of an area to be monitored, building information in the blind area is calculated together by using image data and radar data collected by an unmanned aerial vehicle. The buildings in the area to be monitored are first identified using the image data (step 1041), i.e. the frame information, i.e. the plane information, of the buildings. Next, the building is subjected to finer dimension data identification, which is difficult to distinguish from the image. However, radar data is reflected on an object by radar signals, electromagnetic waves are transmitted by the radar to irradiate a target and receive echoes of the target, so that information such as the distance from the target to an electromagnetic wave transmitting point, the distance change rate (radial speed), the azimuth and the altitude is obtained; finding objects and determining their spatial position. After the position of the building in the blind area is obtained, the spatial coordinates of the two areas (the monitored area and the area to be monitored) need to be unified. At this time, the area boundary between the monitored area and the area to be monitored is utilized in the research, and three types of data are adopted: 1. a reference point in a monitored area; 2. a reference point on a zone boundary; 3. a reference point in the area to be monitored. The positions of the three reference points in different area types are adjusted in a proportional relation respectively, so that the unification of space coordinates between the monitored area and the area to be monitored is realized.
And 105, generating security information of the area to be monitored as second dimension information according to the infrared data and the image data.
In this embodiment, the step 105 specifically includes: step 1051, real-time judging the movement condition of the living beings in the area to be monitored through the infrared data, and when the infrared data corresponding to the same living beings are determined to change in two continuous time units, calculating the target position of the living beings moving currently in the grid layout according to the infrared data changed in the two continuous time units; step 1052, acquiring the target position, extracting image data at the current time, performing feature recognition on the extracted image data, and determining a biological type and a behavior type corresponding to the currently moving biological; step 1053, generating a security risk value according to the biological type and the behavior type and generating a corresponding security early warning level according to the security risk value; and 1054, correlating in the target position of the grid layout drawing according to the biological type, the behavior type and the security early warning level to generate security information as second dimension information.
In this embodiment, the step 1053 specifically includes: predicting the next execution action of the currently moving creature according to the behavior type of the currently moving creature to obtain a predicted behavior; determining the visual direction of the currently moving living being according to the extracted feature recognition result of the image data, and determining the target object of the currently moving living being according to the visual direction and the prediction behavior; calculating a distance value between the target object and a currently moving living being according to the position of the target object in the grid layout; and according to the distance value, the predicted behavior and the type of the living beings, judging the risk condition brought to the target object by the currently moving living beings in the next execution action, and generating a security risk value. The calculation formula for generating the security risk value is as follows:
wherein the content of the first and second substances,
the value is a security risk value;
to define different constant values for different types of organisms,
j in (b) is a biotype;
to define different constant values based on different predicted behavior,
i in (b) is the predicted behavior;
in order to define the minimum distance at which different predicted behaviors have an impact on the target object according to preset rules,
defining the maximum distance of the influence of different prediction behaviors on a target object according to a preset rule;
and
respectively are preset weighted values which are constants;
is a distance value.
Specifically, in research, in order to overcome the problem of a blind area of a region to be monitored, security information in the blind area is calculated together by using image data and infrared data collected by an unmanned aerial vehicle. Firstly, the risk condition of organisms possibly occurring in the current area to be monitored can be judged in advance by utilizing infrared data (namely, step 1051); a sensor for measuring by using physical properties of infrared rays. The infrared ray is also called as infrared ray, and has the properties of reflection, refraction, scattering, interference, absorption and the like. Any substance, as long as it has a certain temperature itself (above absolute zero), can radiate infrared rays. The infrared sensor does not directly contact with the measured object during measurement, so that friction does not exist, and the infrared sensor has the advantages of high sensitivity, quick response and the like. The infrared sensor can be used for quickly and accurately identifying the organisms in the monitored area, the organisms are used as infrared capturing points according to the movement condition of the organisms, and the target position of the organisms can be determined by calculating infrared data (the position relation of infrared signals in the image) which change in two time units. Then, by performing feature recognition using the image data, it is possible to accurately know which kind of living body the living body is, and what kind of behavior the living body is performing. For example, a person holding a knife and a dog roaring. And generating corresponding risk values according to different types and associating. Through experimental comparison, an accurate algorithm model for calculating the security risk value is found finally through research, and the method is shown in the formula.
And 106, generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
In this embodiment, the step 106 specifically includes: step 1061, establishing a three-dimensional model, and constructing a building frame in the three-dimensional model by using the first dimension information as bottom data; step 1062, selecting a plurality of grid points in the area to be monitored on the grid layout chart, and adjusting the position of the building frame according to the actual positions of the grid points in the three-dimensional model, so that the positions on the grid layout chart are consistent with the actual positions; step 1063, according to the position of the second dimension information in the building frame, associating the second dimension information to a corresponding node of the building frame, and associating the second dimension information with corresponding first dimension information; step 1064, associating the environment data with a corresponding node of the building frame according to a position corresponding to the environment data, and associating the environment data with corresponding first dimension information; step 1065, according to a position instruction input by a user, determining first dimension information corresponding to the position instruction in the three-dimensional model, and dynamically displaying environment data and second dimension information associated with the first dimension information.
Specifically, in order to realize the multi-dimensional dynamic display of the monitoring data, after the environmental data, the first dimension information and the second dimension information are obtained through the above steps, the data need to be displayed in a multi-dimensional manner. In the step of carrying out multi-dimensional display, constructing data in a form of constructing a building frame; but still overcomes a problem of alignment between data and data. In contrast, after research, it is determined that multidimensional data alignment action is realized in a grid point position alignment mode; the data of different dimensions can be kept consistent on the same three-dimensional space model, and real dynamic monitoring display is realized.
According to the technical scheme, various monitoring devices are arranged on an unmanned aerial vehicle carrier, unmanned aerial vehicle identification is carried out on the area to be monitored of the area blind spot, and building information, security information and environmental data are constructed; the problem of can't realize not having the dead angle control to whole region through installing monitoring facilities at the scene in traditional intelligent residential district is used is overcome, utilize unmanned aerial vehicle to carry out the data acquisition of whole region and carry out the dynamic monitoring show, can carry out the intelligent monitoring of all-round, no dead angle to whole target area, realize the real-time data dynamic show of target area, provide the real-time supervision data of all-round, no dead angle for the regional staff of target, further provide solution for intelligent residential district, wisdom family.
Example two
Referring to fig. 2, a schematic structural diagram of a system for dynamically generating a WSN data acquisition trajectory based on a UAV according to another embodiment of the present invention is shown. The system is applied to an unmanned aerial vehicle carrier, a plurality of monitoring devices are arranged on the unmanned aerial vehicle carrier, and each monitoring device comprises a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; in this embodiment, the environment monitoring sensor includes: the device comprises a temperature sensor, an air temperature and humidity sensor, an evaporation sensor, a rainfall sensor, an illumination sensor and a wind speed and direction sensor.
The system comprises: the device comprises a grid processing module, a region division module, a data acquisition module, a first dimension module, a second dimension module and a dynamic monitoring module.
The grid processing module is used for acquiring an overall layout on a target area and carrying out gridding processing on the overall layout to obtain a grid layout; and the overall layout diagram is marked with a place for setting the monitoring equipment on site and a corresponding monitoring range.
The area division module is used for dividing a monitored area and an area to be monitored in the grid layout according to the place where the monitoring equipment is arranged on site and the corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored through the unmanned aerial vehicle carrier.
The data acquisition module is used for receiving the unmanned aerial vehicle carrier and is in the monitoring data of the area to be monitored, including the image data of gathering by the camera, the infrared data of gathering by infrared sensor, the radar data of gathering by radar sensor to and the environmental data of gathering by environmental monitoring sensor.
And the first dimension module is used for generating building information of an area to be monitored as first dimension information according to the image data and the radar data.
In this embodiment, the first dimension module is specifically configured to: identifying the building features in the image data to obtain building plane information in an area to be monitored; extracting radar data corresponding to the building features to obtain building space information corresponding to each building feature; constructing a space coordinate system in the area to be monitored, and generating three-dimensional information of building characteristics in the area to be monitored according to the building plane information and the building space information; and adjusting the three-dimensional information of the building characteristics in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored which are divided in the grid layout chart to obtain the building information of the area to be monitored as first dimension information.
In this embodiment, the step of adjusting the three-dimensional information of the building features in the area to be monitored by using the monitored area as a reference according to the monitored area and the area to be monitored divided in the grid layout drawing by the first dimension module specifically includes: determining the area boundary between the monitored area and the area to be monitored according to the monitoring range area corresponding to the monitoring equipment arranged in the monitored area; identifying the region boundary in the image data, and determining a monitoring blind spot on the region boundary according to a preset rule; calculating the data proportion of the monitoring blind point to the three-dimensional information corresponding to the characteristics of the buildings in the area to be monitored, and taking the data proportion as a first data relation value; selecting a plurality of reference points in the monitored area, and determining the data proportion of the three-dimensional information corresponding to the monitoring blind points and the reference points as a second data relation value; and correspondingly adjusting the three-dimensional information of the building characteristics in the area to be monitored according to the proportion between the first data relation value and the second data relation value.
And the second dimension module is used for generating security protection information of the area to be monitored as second dimension information according to the infrared data and the image data.
In this embodiment, the second dimension module is specifically configured to: the method comprises the steps that the movement condition of a living being in a region to be monitored is judged in real time through infrared data, and when the fact that the infrared data corresponding to the same living being change in two continuous time units is determined, the target position of the living being moving currently in a grid layout is calculated according to the infrared data changing in the two continuous time units; acquiring the target position, extracting image data at the current time, performing feature recognition on the extracted image data, and determining a biological type and a behavior type corresponding to a currently moving organism; generating a security risk value according to the biological type and the behavior type, and generating a corresponding security early warning level according to the security risk value; and according to the biological type, the behavior type and the security early warning level, correlating in the target position of the grid layout drawing to generate security information as second dimension information.
In this embodiment, the second dimension module is configured to generate a security risk value according to the biological type and the behavior type, and specifically includes: predicting the next execution action of the currently moving creature according to the behavior type of the currently moving creature to obtain a predicted behavior; determining the visual direction of the currently moving living being according to the extracted feature recognition result of the image data, and determining the target object of the currently moving living being according to the visual direction and the prediction behavior; calculating a distance value between the target object and a currently moving living being according to the position of the target object in the grid layout; and according to the distance value, the predicted behavior and the type of the living beings, judging the risk condition brought to the target object by the currently moving living beings in the next execution action, and generating a security risk value. The calculation formula for generating the security risk value is as follows:
wherein the content of the first and second substances,
the value is a security risk value;
to define different constant values for different types of organisms,
j in (1) is a biotype;
to define different constant values based on different predicted behavior,
i in (b) is the predicted behavior;
in order to define the minimum distance at which different predicted behaviors have an impact on the target object according to preset rules,
to define differences according to preset rulesThe maximum distance that the predicted behavior of (a) has an impact on the target object;
and
respectively are preset weighted values which are constants;
is a distance value.
And the dynamic monitoring module is used for generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
In this embodiment, the dynamic monitoring module is specifically configured to: establishing a three-dimensional model, and constructing a building frame in the three-dimensional model by using the first dimension information as bottom data; selecting a plurality of grid points in the area to be monitored on the grid layout chart, and adjusting the position of the building frame according to the actual positions of the grid points in the three-dimensional model to ensure that the positions on the grid layout chart are consistent with the actual positions; according to the position of the second dimension information in the building frame, associating the second dimension information to a corresponding node of the building frame, and associating the second dimension information with corresponding first dimension information; according to the position corresponding to the environment data, the environment data are correlated to the corresponding node of the building frame, and the environment data are correlated with the corresponding first dimension information; according to a position instruction input by a user, determining first dimension information corresponding to the position instruction in the three-dimensional model, and dynamically displaying environment data and second dimension information associated with the first dimension information.
EXAMPLE III
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; when the computer program runs, the apparatus where the computer readable storage medium is located is controlled to execute the method for dynamically generating the UAV-based WSN data acquisition trajectory according to any of the above embodiments.
Example four
Please refer to fig. 3, which is a schematic structural diagram of an embodiment of a terminal device according to an embodiment of the present invention, where the terminal device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the processor implements the UAV-based WSN data acquisition trajectory dynamic generation method according to any of the embodiments.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program) that are stored in the memory and executed by the processor to accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the terminal device.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor may be any conventional Processor, the Processor is a control center of the terminal device, and various interfaces and lines are used to connect various parts of the terminal device.
The memory mainly includes a program storage area that may store an operating system, an application program required for at least one function, and the like, and a data storage area that may store related data and the like. In addition, the memory may be a high speed random access memory, may also be a non-volatile memory, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, or may also be other volatile solid state memory devices.
It should be noted that the terminal device may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the terminal device is only an example and does not constitute a limitation of the terminal device, and may include more or less components, or combine some components, or different components.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. A WSN data acquisition track dynamic generation method based on UAVs is characterized by being applied to an unmanned aerial vehicle carrier, wherein a plurality of monitoring devices are arranged on the unmanned aerial vehicle carrier, and each monitoring device comprises a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; the method comprises the following steps:
acquiring an overall layout on a target area, and carrying out gridding processing on the overall layout to obtain a grid layout; the overall layout diagram is marked with a place for setting monitoring equipment on site and a corresponding monitoring range;
dividing a monitored area and an area to be monitored in the grid layout according to a place where monitoring equipment is arranged on site and a corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored by the unmanned aerial vehicle carrier;
receiving monitoring data of the unmanned aerial vehicle carrier in the area to be monitored, wherein the monitoring data comprises image data collected by a camera, infrared data collected by an infrared sensor, radar data collected by a radar sensor and environmental data collected by an environmental monitoring sensor;
generating building information of an area to be monitored as first dimension information according to the image data and the radar data;
generating security information of an area to be monitored as second dimension information according to the infrared data and the image data;
and generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
2. The UAV-based WSN data acquisition trajectory dynamic generation method as claimed in claim 1, wherein the step of generating building information of an area to be monitored as first dimension information according to the image data and the radar data specifically includes:
identifying the building features in the image data to obtain building plane information in an area to be monitored;
extracting radar data corresponding to the building features to obtain building space information corresponding to each building feature;
constructing a space coordinate system in the area to be monitored, and generating three-dimensional information of building characteristics in the area to be monitored according to the building plane information and the building space information;
and adjusting the three-dimensional information of the building characteristics in the area to be monitored by taking the monitored area as a reference according to the monitored area and the area to be monitored which are divided in the grid layout chart to obtain the building information of the area to be monitored as first dimension information.
3. The UAV-based WSN data acquisition trajectory dynamic generation method of claim 2, wherein the step of adjusting the three-dimensional information of the building features in the area to be monitored with reference to the monitored area according to the monitored area and the area to be monitored divided in the mesh layout map specifically comprises:
determining the area boundary between the monitored area and the area to be monitored according to the monitoring range area corresponding to the monitoring equipment arranged in the monitored area;
identifying the region boundary in the image data, and determining a monitoring blind spot on the region boundary according to a preset rule;
calculating the data proportion of the three-dimensional information corresponding to the monitoring blind point and the characteristics of the buildings in the area to be monitored as a first data relation value;
selecting a plurality of reference points in the monitored area, and determining the data proportion of the three-dimensional information corresponding to the monitoring blind points and the reference points as a second data relation value;
and correspondingly adjusting the three-dimensional information of the building characteristics in the area to be monitored according to the proportion between the first data relation value and the second data relation value.
4. The UAV-based WSN data acquisition trajectory dynamic generation method of claim 1, wherein the step of generating security information of an area to be monitored as second-dimensional information according to the infrared data and the image data specifically includes:
the method comprises the steps that the movement condition of a living being in a region to be monitored is judged in real time through infrared data, and when the fact that the infrared data corresponding to the same living being change in two continuous time units is determined, the target position of the living being moving currently in a grid layout is calculated according to the infrared data changing in the two continuous time units;
acquiring the target position, extracting image data at the current time, performing feature recognition on the extracted image data, and determining a biological type and a behavior type corresponding to a currently moving organism;
generating a security risk value according to the biological type and the behavior type, and generating a corresponding security early warning level according to the security risk value;
and according to the biological type, the behavior type and the security early warning level, performing correlation in a target position of the grid layout drawing to generate security information serving as second dimension information.
5. The UAV-based WSN data acquisition trajectory dynamic generation method of claim 4, wherein the step of generating a security risk value according to the biological type and the behavioral type specifically comprises:
predicting the next execution action of the currently moving creature according to the behavior type of the currently moving creature to obtain a predicted behavior;
determining the visual direction of the currently moving living being according to the extracted feature recognition result of the image data, and determining the target object of the currently moving living being according to the visual direction and the prediction behavior;
calculating a distance value between the target object and a currently moving living being according to the position of the target object in the grid layout;
and according to the distance value, the predicted behavior and the type of the living beings, judging the risk condition brought to the target object by the currently moving living beings in the next execution action, and generating a security risk value.
6. The UAV-based WSN data acquisition trajectory dynamic generation method of claim 1, wherein the step of generating the dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information, and the second dimension information specifically includes:
establishing a three-dimensional model, and constructing a building frame in the three-dimensional model by taking the first dimension information as bottom data;
selecting a plurality of grid points in the area to be monitored on the grid layout drawing, and adjusting the position of the building frame according to the actual positions of the grid points in the three-dimensional model to ensure that the positions on the grid layout drawing are consistent with the actual positions;
according to the position of the second dimension information in the building frame, associating the second dimension information to a corresponding node of the building frame, and associating the second dimension information with corresponding first dimension information;
according to the position corresponding to the environment data, the environment data are correlated to the corresponding node of the building frame, and the environment data are correlated with the corresponding first dimension information;
according to a position instruction input by a user, first dimension information corresponding to the position instruction is determined in the three-dimensional model, and environment data and second dimension information related to the first dimension information are dynamically displayed.
7. The UAV-based WSN data acquisition trajectory dynamic generation method of claim 1, wherein the environmental monitoring sensor comprises: the device comprises a temperature sensor, an air temperature and humidity sensor, an evaporation sensor, a rainfall sensor, an illumination sensor and a wind speed and direction sensor.
8. A WSN data acquisition track dynamic generation system based on UAVs is characterized in that the system is applied to an unmanned aerial vehicle carrier, a plurality of monitoring devices are arranged on the unmanned aerial vehicle carrier, and each monitoring device comprises a camera, an infrared sensor, a radar sensor and an environment monitoring sensor; the system comprises: the system comprises a grid processing module, a region dividing module, a data acquisition module, a first dimension module, a second dimension module and a dynamic monitoring module;
the grid processing module is used for acquiring an overall layout diagram on a target area and carrying out gridding processing on the overall layout diagram to obtain a grid layout diagram; the overall layout diagram is marked with a place for setting monitoring equipment on site and a corresponding monitoring range;
the area division module is used for dividing a monitored area and an area to be monitored in the grid layout according to the place where the monitoring equipment is arranged on site and the corresponding monitoring range; the monitored area refers to a monitoring range area corresponding to the field-set monitoring equipment, and the area to be monitored refers to an area monitored by the unmanned aerial vehicle carrier;
the data acquisition module is used for receiving monitoring data of the unmanned aerial vehicle carrier in the area to be monitored, and comprises image data acquired by a camera, infrared data acquired by an infrared sensor, radar data acquired by a radar sensor and environmental data acquired by an environmental monitoring sensor;
the first dimension module is used for generating building information of an area to be monitored as first dimension information according to the image data and the radar data;
the second dimension module is used for generating security information of an area to be monitored as second dimension information according to the infrared data and the image data;
and the dynamic monitoring module is used for generating dynamic monitoring information of the area to be monitored in real time according to the environment data, the first dimension information and the second dimension information.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program; wherein the computer program, when executed, controls an apparatus in which the computer readable storage medium is located to perform the UAV based WSN data acquisition trajectory dynamic generation method of any of claims 1-7.
10. A terminal device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor when executing the computer program implementing the UAV-based WSN data acquisition trajectory dynamic generation method of any of claims 1-7.
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