CN114201556A - Topographic data acquisition method and system and intelligent terminal - Google Patents
Topographic data acquisition method and system and intelligent terminal Download PDFInfo
- Publication number
- CN114201556A CN114201556A CN202110860275.2A CN202110860275A CN114201556A CN 114201556 A CN114201556 A CN 114201556A CN 202110860275 A CN202110860275 A CN 202110860275A CN 114201556 A CN114201556 A CN 114201556A
- Authority
- CN
- China
- Prior art keywords
- information
- target
- terrain
- local
- feature point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/12—Relief maps
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Remote Sensing (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Image Processing (AREA)
Abstract
The application relates to the field of terrain monitoring, in particular to a terrain data acquisition method, a system and an intelligent terminal, which comprise the following steps: acquiring user positioning information of a user to determine the position and elevation information of a target terrain area corresponding to the user; responding to data acquisition operation of the position and the elevation information of the target terrain area, acquiring a corresponding overall digital terrain model according to the position and the elevation information of the target terrain area, and acquiring overall terrain information corresponding to the overall digital terrain model; responding to the imaging operation of a user wearing equipment double cameras on the local terrain, and acquiring a local terrain model; comparing the local terrain model with the overall digital terrain model to obtain a target digital terrain model corresponding to the local terrain model in the overall digital terrain model; and acquiring corresponding target terrain information according to the target digital terrain model and projecting the target terrain information to the local terrain model. The method and the device have the function of conveniently acquiring the related terrain data of the local terrain.
Description
Technical Field
The application relates to the field of terrain monitoring, in particular to a method, a system and an intelligent terminal for acquiring terrain data.
Background
At present, in some mountainous areas, landslide occurs irregularly, once landslide occurs, nearby buildings and residents are likely to be damaged, in order to reduce loss and potential safety hazards, some terrains with landslide potential hazards need to be monitored, so that some terrains are monitored by installing some sensors or measuring equipment, and collected data are transmitted to a cloud server, wherein the data comprise parameters such as geological historical maps of the terrains, gradients of the terrains and the like; in addition, in order to more conveniently know the terrain data, a digital terrain model of the terrain can be obtained by adopting the DEM technology, and parameters such as a geological historical map, inclination and the like can be labeled.
In some cases, a monitoring person (user) may conduct a field survey, and during the survey, data related to the terrain to be surveyed by the monitoring person needs to be retrieved and presented, and during the survey, the visible terrain is a local terrain, but when retrieving a data terrain model, a digital terrain model of the whole terrain is generally retrieved, so that the local data cannot be directly known, and the situation needs to be further improved.
Disclosure of Invention
In order to conveniently acquire related terrain data of local terrain, the application provides a terrain data acquisition method.
The topographic data acquisition method provided by the application adopts the following technical scheme:
a topographic data acquisition method comprising the steps of:
acquiring user positioning information of a user to determine the position and elevation information of a target terrain area corresponding to the user;
responding to data acquisition operation of the position and the elevation information of the target terrain area, acquiring a corresponding overall digital terrain model according to the position and the elevation information of the target terrain area, and acquiring overall terrain information corresponding to the overall digital terrain model;
responding to the imaging operation of a user wearing equipment double cameras on the local terrain, and acquiring a local terrain model;
comparing the local terrain model with the overall digital terrain model to obtain a target digital terrain model corresponding to the local terrain model in the overall digital terrain model;
and acquiring corresponding target terrain information according to the target digital terrain model and projecting the target terrain information to the local terrain model.
By adopting the technical scheme, when monitoring personnel (users) carry out on-site monitoring on the monitored terrain, user positioning information corresponding to the users is obtained in real time, the position and the elevation information of a target terrain area to be monitored by the users on-site are obtained according to the positions of the users, after the area position of the target terrain is determined, a corresponding overall digital terrain model and corresponding overall terrain information can be called according to the position and the elevation information of a land marking area, the overall terrain information corresponds to each local area of the overall digital terrain model, the overall digital terrain model corresponding to each target terrain area position can be established and stored in advance by adopting a DEM (digital elevation model), the overall terrain information can be acquired by acquiring equipment and a sensor which are pre-installed on the target terrain area position, and in addition, a double camera on user wearing equipment has a 3D imaging function, the local terrain area that can utilize two cameras to form and shoot with two cameras carries out the operation of formation of image, acquire local terrain model, after acquiring local terrain model, compare local terrain model and whole digital terrain model, thereby acquire the target terrain model that corresponds with local terrain model in the whole digital terrain model, then take the target terrain information that corresponds with target terrain model in the whole terrain information, and with the projection of target terrain information to the local terrain model of two cameras formation, thereby can realize transmitting the local terrain information of two camera formation of image in real time to the local terrain model of formation, can acquire the relevant topographic data of local topography promptly.
Optionally, when obtaining the digital terrain model of the target, the method further includes:
acquiring integral plane image information corresponding to the integral digital terrain model;
acquiring local plane image information corresponding to the local terrain model;
comparing the local plane image information with the whole plane image information to obtain corresponding target plane image information in the whole plane image information;
and acquiring a corresponding target digital terrain model according to the target plane image information.
By adopting the technical scheme, in the stage of obtaining the target digital terrain model, the integral plane image information corresponding to the integral digital terrain model is obtained firstly, and the integral plane image information can be obtained before obtaining the target digital terrain model, the local plane image information corresponding to the local terrain model is obtained while obtaining the local terrain model, then the local plane image is matched with the integral plane image information, the target image information matched with the local plane image in the integral plane image information is obtained, and then the target digital terrain model corresponding to the target image information in the integral digital terrain model is called, so that the target digital terrain model is obtained.
Optionally, in the process of obtaining the image information of the target plane, the method further includes:
obtaining feature point data in the whole plane image information and marking the feature point data as first feature point data, wherein one first feature point data corresponds to one local area of the terrain;
obtaining feature point data in local plane image information and marking the feature point data as second feature point data;
comparing the second feature point data with the first feature point data, acquiring first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as target feature point data;
and determining target plane image information according to the target feature point data.
By adopting the technical scheme, a plurality of feature point positions are set in a target terrain area in advance, each feature point is separated at intervals, labels of all the feature points are different, each feature point represents a local area in the target terrain area, after the whole plane image information is obtained, all feature point data in the area are obtained and marked as first feature point data; in addition, in the step of obtaining the local plane image information, feature point data in the local plane image information is obtained, when the number of the feature point data is one, the feature point data is marked as second feature point data, then the second feature point data is compared with all the first feature point data, so that target feature point data is determined, and the target plane image information in the whole plane image information can be determined according to the target feature point data.
Optionally, in the process of obtaining the image information of the target plane, the method further includes:
acquiring all feature point data in the whole plane image information and marking the feature point data as a first feature point data set, wherein each feature point data is different and the corresponding local area is different;
acquiring all feature point data in local plane image information and marking the feature point data as a second feature point data set;
comparing all the second feature point data sets with the first feature point data sets, acquiring all the first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as a target feature point data set;
and determining target plane image information according to all the target feature point data sets.
By adopting the technical scheme, a plurality of feature point positions are set in a target terrain area in advance, each feature point is separated at intervals, labels of all the feature points are different, each feature point represents a local area in the target terrain area, after the whole plane image information is obtained, all feature point data in the area are obtained and marked as a first feature point data set; in addition, in the step of obtaining the local plane image information, feature point data in the local plane image information is obtained, when the number of the feature point data is multiple, the feature point data is marked as a second feature point data set, then, each second feature point data in the second feature point data set is compared with all first feature point data in sequence, and a plurality of target plane image information sets in the whole plane image information can be determined according to the plurality of target feature point data after target feature point data are determined one by one.
Optionally, after obtaining the user positioning information, the method further includes the following steps:
acquiring target positioning information with the closest distance to user positioning information, wherein each target positioning information corresponds to a target topographic area position and elevation information;
and acquiring target distance data between the nearest target positioning information and the user positioning information, comparing the target distance data with preset distance data, and determining the position and elevation information of a target terrain area.
By adopting the technical scheme, a plurality of landslides exist in one area, after the user positioning information is acquired, the distance between a user and the adjacent terrain needs to be acquired firstly, the target positioning information closest to the user is determined, the target terrain needing to be monitored is determined, the corresponding position and elevation information of the target terrain area are called, then the target distance data between the user positioning information and the target positioning information is determined, the target distance data is compared with the preset distance parameter, and if the target distance data is smaller than the preset distance parameter, the position and the elevation information of the target terrain area can be determined.
Optionally, when the local terrain model is obtained, the method further includes the following steps:
responding to a distance test of the wearing equipment to the target terrain to obtain actual distance information, comparing the actual distance information with preset imaging distance information, and if the actual distance information is larger than the imaging distance information, not performing imaging operation; otherwise, the imaging operation is carried out.
By adopting the technical scheme, after the position and the elevation information of the target terrain area are determined, the user moves forward in the direction of the target terrain, the wearing equipment of the user can acquire the actual distance information between the user and the target terrain in real time, the actual distance information is compared with the preset imaging distance information, if the actual distance information is larger than the imaging distance information, the imaging operation is not carried out, and the user continuously walks to the target terrain until the actual distance information is smaller than the imaging distance information, so that the imaging operation is carried out.
The application provides a topographic data acquisition system adopts following technical scheme:
a topographic data acquisition system comprises a positioning module, a position determining module, an overall model acquisition module, an overall information acquisition module, a local model acquisition module, a control module, a storage module and an information transmission module;
the positioning module is used for acquiring and outputting user positioning information corresponding to a user;
the position determining module is connected to the positioning module, receives user positioning information, determines the position and elevation information of a target terrain area to be investigated in the area where the user is located, and stores the position and elevation information in the storage module;
the integral information acquisition module is connected with the positioning module and the position determination module, receives user positioning information, acquires integral topographic information and stores the integral topographic information in the storage module;
the integral model acquisition module is connected to the position determination module, acquires an integral digital terrain model based on the position and elevation information of the target terrain area, and stores the integral digital terrain model in the storage module;
the local model acquisition module is used for carrying out imaging operation on local terrain by the double cameras of the user wearing equipment to acquire a corresponding local terrain model and storing the local terrain model in the storage module;
the control module is connected with the overall model acquisition module and the local model acquisition module, compares the local terrain model with the overall digital terrain model, and outputs a target digital terrain model corresponding to the local terrain model in the overall digital terrain model;
the storage module is connected with the position determining module, the whole information acquiring module, the whole model acquiring module and the local model acquiring module and is used for storing data;
and the information transmission module is connected with the control module, outputs corresponding target terrain information according to the target digital terrain model, and transmits the target terrain information to the local terrain model.
By adopting the technical scheme, when monitoring personnel (users) monitor the monitored terrain on the spot, the positioning module can acquire user positioning information corresponding to the users in real time, the position determining module acquires the position and elevation information of a target terrain area to be monitored on the spot according to the position of the users, after the area position of the target terrain is determined, the integral model acquiring module can call a corresponding integral digital terrain model and corresponding integral terrain information according to the position and elevation information of the target terrain area, the integral terrain information corresponds to each local area of the integral digital terrain model, the integral digital terrain model corresponding to each target terrain area position is built in advance by adopting a DEM and is stored in the storage module, and the integral terrain information is acquired by acquisition equipment and sensors which are pre-installed on the target terrain area position, in the monitoring process, the local model acquisition module can acquire a local terrain model in real time, after the local terrain model is acquired, the control module compares the local terrain model with the overall digital terrain model, so that a target terrain model corresponding to the local terrain model in the overall digital terrain model is acquired, then the information transmission module calls target terrain information corresponding to the target terrain model in the overall terrain information, and projects the target terrain information onto the local terrain model formed by the local model acquisition module, so that the local terrain information of the local model acquisition module can be transmitted to the formed local terrain model in real time, namely, relevant terrain data of local terrain can be acquired.
Optionally, the system further comprises an overall image acquisition module and a local image acquisition module;
the integral image acquisition module is connected to the storage module and is used for acquiring integral plane image information corresponding to the integral digital terrain model, wherein the integral plane image information is acquired in advance and stored in the storage module;
the local image acquisition module is connected to the storage module and is used for acquiring local plane image information corresponding to the local terrain model, wherein the local plane image information is acquired and updated in real time and is stored in the storage module;
the control module is connected with the whole image acquisition module, the local image acquisition module and the storage module, compares the local plane image information with the whole plane image information, determines target plane image information, and acquires a corresponding target digital terrain model according to the target plane image information.
By adopting the technical scheme, in the stage of obtaining the target digital terrain model, the whole image obtaining module firstly obtains the whole plane image information corresponding to the whole digital terrain model, and the whole plane image information can be obtained before obtaining the target digital terrain model, the local image obtaining module obtains the local plane image information corresponding to the local terrain model while obtaining the local terrain model, then the control module matches the local plane image with the whole plane image information to obtain the target image information matched with the local plane image in the whole plane image information, and then the target digital terrain model corresponding to the target image information in the whole digital terrain model is called, thereby obtaining the target digital terrain model.
The intelligent terminal comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute a topographic data acquisition method.
In summary, the present application includes at least one of the following beneficial technical effects:
when monitoring personnel (users) carry out on-site monitoring on the monitored terrain, user positioning information corresponding to the users is obtained in real time, target terrain area position and elevation information to be monitored by the users on-site are obtained according to the positions of the users, after the area positions of the target terrain are determined, corresponding overall digital terrain models and corresponding overall terrain information can be called according to the positions and the elevation information of the target terrain, the overall terrain information corresponds to each local area of the overall digital terrain models, the overall digital terrain models corresponding to each target terrain area position are built in advance by adopting a DEM and stored, the overall terrain information is collected by collecting equipment and sensors which are pre-installed on the target terrain area positions, in addition, double cameras on user wearing equipment have a 3D imaging function, and the two cameras can be used for forming local terrain areas shot by the double cameras for imaging operation, the method comprises the steps of obtaining a local terrain model, comparing the local terrain model with a whole digital terrain model after obtaining the local terrain model, obtaining a target terrain model corresponding to the local terrain model in the whole digital terrain model, calling target terrain information corresponding to the target terrain model in the whole terrain information, projecting the target terrain information onto the local terrain model formed by two cameras, transmitting the local terrain information formed by the two cameras to the formed local terrain model in real time, namely obtaining related terrain data of the local terrain.
Drawings
FIG. 1 is a block flow diagram of a topographic data acquisition method in an embodiment of the present application;
FIG. 2 is a block flow diagram of a method of digital terrain modeling of a target in an embodiment of the present application;
FIG. 3 is a block flow diagram of a method for generating image information of a target plane according to a first embodiment of the present disclosure;
FIG. 4 is a block flow diagram of a method for generating image information of a target plane according to a first embodiment of the present application;
FIG. 5 is a block flow diagram of a topographic data acquisition system in an embodiment of the present application.
Description of reference numerals:
1. a positioning module; 2. a location determination module; 3. an integral model obtaining module; 4. an overall information acquisition module; 5. a local model acquisition module; 6. a control module; 7. a storage module; 8. an information transmission module; 9. an overall image acquisition module; 10. and a local image acquisition module.
Detailed Description
The present application will be described in further detail below.
The embodiment of the application discloses a topographic data acquisition method, which comprises the following steps of:
and S1, in the detection process of the user, acquiring user positioning information of the user in real time, and determining the position and elevation information of the target terrain area corresponding to the user according to the user positioning information.
S2, responding to data acquisition operation of the position and elevation information of the target terrain area, wherein the acquisition operation is to collect various data of the target terrain through data acquisition equipment and sensors which are pre-installed on the target terrain; then, a corresponding overall digital terrain model is called according to the position and elevation information of the target terrain area, data of the overall digital terrain model are collected in advance and updated in real time, and the digital terrain model of the terrain can be obtained by adopting a DEM (digital elevation model) technology and stored in a cloud server; and meanwhile, acquiring integral terrain information corresponding to the integral digital terrain model according to the position and elevation information of the target terrain area, wherein the integral terrain information comprises parameters such as a geological historical map and inclination of the terrain.
S3, after a user observes a target terrain, the wearing equipment of the user images a local area where the target mountain is seen to obtain a local terrain model, wherein the imaging operation of the local terrain responds to the double cameras of the wearing equipment of the user, the 3D imaging distance of the double cameras is utilized, and a 3D image projection is formed on the wearing equipment of the user;
s4, comparing the called overall digital terrain model with the local terrain model, wherein the local terrain model corresponds to one part of the overall digital terrain model, so that a target digital terrain model corresponding to the local terrain model in the overall digital terrain model can be obtained through the comparison result;
and S5, acquiring corresponding target terrain information according to the target digital terrain model by taking the overall terrain information as a set of related data of a plurality of local terrains, so as to acquire the target terrain information corresponding to the local terrain model, and then projecting the target terrain information to the local terrain model for users to know the target terrain information corresponding to the local terrains.
In this embodiment, in the method for obtaining a digital terrain model of a target, referring to fig. 2, the method further includes the following steps:
s41, when the integral digital terrain model is called, integral plane image information corresponding to the integral digital terrain model is obtained, wherein the integral plane image information is an integral image of the target terrain;
s42, when the local terrain model is obtained, local plane image information corresponding to the local terrain model is obtained, wherein the local plane image information is a local image of a target terrain seen by a user;
s43, comparing the local plane image information with the whole plane image information, and acquiring corresponding target plane image information in the whole plane image information by the local plane image information because the local plane image information corresponds to a part of the whole plane image information;
s44, a corresponding digital terrain model of the target is obtained according to the target plane image information.
In acquiring the target plane image information, two cases are generally included, and the following is an illustration of the two cases, and in the first case, referring to fig. 3, the local plane image information is acquired less:
s431, obtaining feature point data in the whole plane image information and marking the feature point data as first feature point data, wherein a plurality of first feature point data are arranged in the whole plane image information, one first feature point data corresponds to one local area of the terrain, and the feature point data is a signal sent by a pre-installed device and can be obtained in the plane image;
s432, after the local plane image information is obtained, obtaining the feature point data in the local plane image information and marking the feature point data as second feature point data, wherein in the present case, the number of the second feature point data in the local plane image information is one;
s433, comparing the obtained second feature point data with all the first feature point data one by one, so as to determine first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as target feature point data;
and S434, determining target plane image information according to the target feature point data.
In the second case, referring to fig. 4, the local plane image information obtained is more:
s431, acquiring all feature point data in the whole plane image information and marking the feature point data as a first feature point data set, wherein each feature point data is different and the corresponding local area is different;
s432, acquiring all feature point data in local plane image information and marking the feature point data as a second feature point data set;
s433, comparing the second feature point data in all the second feature point data sets with the first feature point data in the first feature point data set one by one to obtain all the first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as a target feature point data set;
s434, according to all the target feature point data sets, a plurality of target plane image information corresponding to the local plane image information may be determined.
Because there may be a plurality of landslides in a region, after obtaining the user positioning information, the method further comprises the following steps:
s11, acquiring target positioning information with the closest distance to the user positioning information, wherein each target positioning information corresponds to a target terrain area position and elevation information;
and S12, acquiring target distance data between the nearest target positioning information and the user positioning information, comparing the target distance data with preset distance data, if the target distance data is smaller than the preset distance parameter, determining the position and the elevation information of the target terrain area, otherwise, the user continues to move forward to the target terrain, and if the target distance data is smaller than the preset distance parameter, determining the position and the elevation information of the target terrain area.
When obtaining the local terrain model, the method further comprises the following steps:
responding to a distance test of the wearing equipment to the target terrain to obtain actual distance information, comparing the actual distance information with preset imaging distance information, and if the actual distance information is larger than the imaging distance information, not performing imaging operation; otherwise, the imaging operation is carried out.
The implementation principle of the topographic data acquisition method in the embodiment of the application is as follows:
when monitoring personnel (users) monitor the monitored terrain on site, user positioning information corresponding to the users is acquired in real time, after the user positioning information is acquired, the distance between the users and the nearby terrain needs to be acquired first, target positioning information closest to the users is determined, the target terrain needing to be monitored is determined, the corresponding position and elevation information of a target terrain area are obtained, target distance data between the user positioning information and the target positioning information is determined, the target distance data is compared with preset distance parameters, and if the target distance data is smaller than the preset distance parameters, the position and the elevation information of the target terrain area can be determined.
After the area position of the target terrain is determined, a corresponding overall digital terrain model and corresponding overall terrain information can be called according to the area position of the target terrain and the elevation information, in addition, the double cameras on the user wearing equipment have a 3D imaging function, imaging operation can be carried out on a local terrain area formed by the two cameras and shot by the double cameras, the local terrain model is obtained, when the local terrain model is obtained, the wearing equipment of the user can obtain actual distance information between the user and the target terrain in real time, the actual distance information is compared with preset imaging distance information, if the actual distance information is larger than the imaging distance information, the imaging operation is not carried out, the user continuously walks to the target terrain until the actual distance information is smaller than the imaging distance information, and the imaging operation is carried out.
After the local terrain model is obtained, local plane image information corresponding to the local terrain model is obtained, overall plane image information corresponding to the overall digital terrain model is called, feature point data in the overall plane image information is obtained and marked as first feature point data, feature point data in the local plane image information is obtained, when the number of the feature point data is one, the feature point data is marked as second feature point data, then the second feature point data is compared with all the first feature point data, target feature point data is determined, and target plane image information in the overall plane image information can be determined according to the target feature point data; in another case, in the step of obtaining the local plane image information, feature point data in the local plane image information is obtained, and when the number of the feature point data is plural, the feature point data is marked as a second feature point data set, all first feature point data in all the whole plane image information is marked as a first feature point data set, and then each second feature point data in the second feature point data set is sequentially compared with all the first feature point data, and the target feature point data is determined one by one, so that the sets of the target plane image information in the whole plane image information can be determined according to the plural target feature point data.
After the target plane image information is determined, a target terrain model corresponding to a local terrain model in the overall digital terrain model can be obtained, then the target terrain information corresponding to the target terrain model in the overall terrain information is called, and the target terrain information is projected onto the local terrain model formed by the two cameras, so that the local terrain information imaged by the two cameras can be transmitted to the formed local terrain model in real time, namely, the related terrain data of the local terrain can be obtained.
A topographic data acquisition system, refer to FIG. 5, including orientation module 1, position confirm module 2, whole model obtain module 3, whole information obtain module 4, local model obtain module 5, control module 6, storage module 7, information transmission module 8;
the positioning module 1 is used for acquiring and outputting user positioning information corresponding to a user;
the position determining module 2 is connected to the positioning module 1, receives the positioning information of the user, determines the position and the elevation information of a target terrain area to be inspected in the area where the user is located, and stores the position and the elevation information in the storage module 7;
the integral information acquisition module 4 is connected with the positioning module 1 and the position determination module 2, receives the user positioning information, acquires integral topographic information and stores the integral topographic information in the storage module 7;
the integral model acquisition module 3 is connected to the position determination module 2, acquires an integral digital terrain model based on the position and elevation information of the target terrain area, and stores the integral digital terrain model in the storage module 7;
the local model acquisition module 5 is used for carrying out imaging operation on local terrain by the double cameras of the user wearing equipment to acquire a corresponding local terrain model and storing the local terrain model in the storage module 7;
the control module 6 is connected with the overall model acquisition module 3 and the local model acquisition module 5, compares the local terrain model with the overall digital terrain model, and outputs a target digital terrain model corresponding to the local terrain model in the overall digital terrain model;
the storage module 7 is connected with the position determining module 2, the whole information acquiring module 4, the whole model acquiring module 3 and the local model acquiring module 5 and is used for storing data;
and the information transmission module 8 is connected to the control module 6, outputs corresponding target terrain information according to the target digital terrain model, and transmits the target terrain information to the local terrain model.
When monitoring personnel (users) carry out on-site monitoring on the monitored terrain, the positioning module 1 can acquire user positioning information corresponding to the users in real time, the position determining module 2 acquires the position and elevation information of a target terrain area to be monitored by the users on-site according to the positions of the users, after the area position of the target terrain is determined, the integral model acquiring module 3 can call a corresponding integral digital terrain model and corresponding integral terrain information according to the position and elevation information of the target terrain area, the integral terrain information corresponds to each local area of the integral digital terrain model, the integral digital terrain model corresponding to each target terrain area position is built in advance by adopting a DEM and stored in the storage module 7, and the integral terrain information is acquired by acquisition equipment and sensors which are pre-installed on the target terrain area position, in the monitoring process, the local model obtaining module 5 can obtain a local terrain model in real time, after the local terrain model is obtained, the control module 6 compares the local terrain model with the overall digital terrain model, so as to obtain a target terrain model corresponding to the local terrain model in the overall digital terrain model, then the information transmission module 8 calls target terrain information corresponding to the target terrain model in the overall terrain information, and projects the target terrain information onto the local terrain model formed by the local model obtaining module 5, so that the local terrain information of the local model obtaining module 5 can be transmitted to the formed local terrain model in real time, namely, relevant terrain data of local terrain can be obtained.
In addition, the system also comprises an overall image acquisition module 9 and a local image acquisition module 10;
the integral image acquisition module 9 is connected to the storage module 7 and is used for acquiring integral plane image information corresponding to the integral digital terrain model, wherein the integral plane image information is acquired in advance and stored in the storage module 7;
the local image acquisition module 10 is connected to the storage module 7 and is used for acquiring local plane image information corresponding to the local terrain model, wherein the local plane image information is acquired and updated in real time and is stored in the storage module 7;
and the control module 6 is connected with the overall image acquisition module 9, the local image acquisition module 10 and the storage module 7, compares the local plane image information with the overall plane image information, determines target plane image information, and acquires a corresponding target digital terrain model according to the target plane image information.
In the stage of obtaining the target digital terrain model, the whole image obtaining module 9 first obtains whole plane image information corresponding to the whole digital terrain model, and the whole plane image information can be obtained before obtaining the target digital terrain model, the local image obtaining module 10 obtains local plane image information corresponding to the local terrain model while obtaining the local terrain model, then the control module 6 matches the local plane image with the whole plane image information to obtain target image information matched with the local plane image in the whole plane image information, and then calls the target digital terrain model corresponding to the target image information in the whole digital terrain model, thereby obtaining the target digital terrain model.
The intelligent terminal comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute a topographic data acquisition method.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A method for obtaining topographic data, comprising the steps of:
acquiring user positioning information of a user to determine the position and elevation information of a target terrain area corresponding to the user;
responding to data acquisition operation of the position and the elevation information of the target terrain area, acquiring a corresponding overall digital terrain model according to the position and the elevation information of the target terrain area, and acquiring overall terrain information corresponding to the overall digital terrain model;
responding to the imaging operation of a user wearing equipment double cameras on the local terrain, and acquiring a local terrain model;
comparing the local terrain model with the overall digital terrain model to obtain a target digital terrain model corresponding to the local terrain model in the overall digital terrain model;
and acquiring corresponding target terrain information according to the target digital terrain model and projecting the target terrain information to the local terrain model.
2. A method of acquiring topographic data according to claim 1, further comprising, in acquiring the digital topographic model of the object:
acquiring integral plane image information corresponding to the integral digital terrain model;
acquiring local plane image information corresponding to the local terrain model;
comparing the local plane image information with the whole plane image information to obtain corresponding target plane image information in the whole plane image information;
and acquiring a corresponding target digital terrain model according to the target plane image information.
3. The topographic data acquisition method according to claim 2, further comprising, in acquiring the object plane image information:
obtaining feature point data in the whole plane image information and marking the feature point data as first feature point data, wherein one first feature point data corresponds to one local area of the terrain;
obtaining feature point data in local plane image information and marking the feature point data as second feature point data;
comparing the second feature point data with the first feature point data, acquiring first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as target feature point data;
and determining target plane image information according to the target feature point data.
4. The topographic data acquisition method according to claim 2, further comprising, in acquiring the object plane image information:
acquiring all feature point data in the whole plane image information and marking the feature point data as a first feature point data set, wherein each feature point data is different and the corresponding local area is different;
acquiring all feature point data in local plane image information and marking the feature point data as a second feature point data set;
comparing all the second feature point data sets with the first feature point data sets, acquiring all the first feature point data matched with the second feature point data in the whole plane image information, and defining the first feature point data as a target feature point data set;
and determining target plane image information according to all the target feature point data sets.
5. The topographic data acquisition method of claim 1, further comprising the following steps after acquiring the user location information:
acquiring target positioning information with the closest distance to user positioning information, wherein each target positioning information corresponds to a target topographic area position and elevation information;
and acquiring target distance data between the nearest target positioning information and the user positioning information, comparing the target distance data with preset distance data, and determining the position and elevation information of a target terrain area.
6. A topographic data acquisition method according to claim 1, further comprising the steps of, in acquiring the local topographic model:
responding to a distance test of the wearing equipment to the target terrain to obtain actual distance information, comparing the actual distance information with preset imaging distance information, and if the actual distance information is larger than the imaging distance information, not performing imaging operation; otherwise, the imaging operation is carried out.
7. The topographic data acquisition system is characterized by comprising a positioning module (1), a position determining module (2), an overall model acquisition module (3), an overall information acquisition module (4), a local model acquisition module (5), a control module (6), a storage module (7) and an information transmission module (8);
the positioning module (1) is used for acquiring and outputting user positioning information corresponding to a user;
the position determining module (2) is connected to the positioning module (1), receives user positioning information, determines the position and elevation information of a target terrain area to be investigated in the area where the user is located, and stores the position and elevation information in the storage module (7);
the integral information acquisition module (4) is connected with the positioning module (1) and the position determining module (2), receives user positioning information, acquires integral topographic information and stores the integral topographic information in the storage module (7);
the integral model acquisition module (3) is connected to the position determination module (2), acquires an integral digital terrain model based on the position and elevation information of the target terrain area, and stores the integral digital terrain model in the storage module (7);
the local model acquisition module (5) is used for carrying out imaging operation on local terrain by the double cameras of the user wearing equipment to acquire a corresponding local terrain model and storing the local terrain model in the storage module (7);
the control module (6) is connected with the overall model acquisition module (3) and the local model acquisition module (5), compares the local terrain model with the overall digital terrain model, and outputs a target digital terrain model corresponding to the local terrain model in the overall digital terrain model;
the storage module (7) is connected with the position determining module (2), the whole information acquiring module (4), the whole model acquiring module (3) and the local model acquiring module (5) and is used for storing data;
and the information transmission module (8) is connected to the control module (6), outputs corresponding target terrain information according to the target digital terrain model, and transmits the target terrain information to the local terrain model.
8. A topographic data acquisition system according to claim 7, further comprising a global image acquisition module (9), a local image acquisition module (10);
the integral image acquisition module (9) is connected to the storage module (7) and is used for acquiring integral plane image information corresponding to the integral digital terrain model, wherein the integral plane image information is acquired in advance and stored in the storage module (7);
the local image acquisition module (10) is connected to the storage module (7) and is used for acquiring local plane image information corresponding to the local terrain model, wherein the local plane image information is acquired and updated in real time and is stored in the storage module (7);
the control module (6) is connected with the whole image acquisition module (9), the local image acquisition module (10) and the storage module (7), compares the local plane image information with the whole plane image information, determines target plane image information, and acquires a corresponding target digital terrain model according to the target plane image information.
9. An intelligent terminal, comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and that executes the method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860275.2A CN114201556A (en) | 2021-07-28 | 2021-07-28 | Topographic data acquisition method and system and intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860275.2A CN114201556A (en) | 2021-07-28 | 2021-07-28 | Topographic data acquisition method and system and intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114201556A true CN114201556A (en) | 2022-03-18 |
Family
ID=80645875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110860275.2A Pending CN114201556A (en) | 2021-07-28 | 2021-07-28 | Topographic data acquisition method and system and intelligent terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114201556A (en) |
-
2021
- 2021-07-28 CN CN202110860275.2A patent/CN114201556A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102203135B1 (en) | Method and system for detecting disaster damage information based on artificial intelligence using drone | |
| JP4727068B2 (en) | Construction monitoring system, construction management method | |
| JP5682060B2 (en) | Image composition apparatus, image composition program, and image composition system | |
| Huang et al. | Unmanned aerial vehicle based remote sensing method for monitoring a steep mountainous slope in the Three Gorges Reservoir, China | |
| CN115597659B (en) | Intelligent safety management and control method for transformer substation | |
| KR101891087B1 (en) | Evaluation method for stability of rock slope using drone | |
| KR102313178B1 (en) | Measuring method for ground settlement using drone | |
| JP2005283221A (en) | Surveying data processing system, storage medium storing digital map and digital map display | |
| CN115762067B (en) | Landslide monitoring system based on laser point cloud and video data fusion | |
| CN108957504A (en) | The method and system of indoor and outdoor consecutive tracking | |
| JP2017201261A (en) | Shape information generating system | |
| KR20190114696A (en) | An augmented reality representation method for managing underground pipeline data with vertical drop and the recording medium thereof | |
| KR102385677B1 (en) | 3D based cctv control video system | |
| JP6829800B2 (en) | Receiver suitability determination method and receiver suitability determination system | |
| CN114197546A (en) | Intelligent monitoring method and system for foundation pit deformation | |
| CN114201556A (en) | Topographic data acquisition method and system and intelligent terminal | |
| US20220148216A1 (en) | Position coordinate derivation device, position coordinate derivation method, position coordinate derivation program, and system | |
| CN114359489A (en) | Method, device and equipment for making real-scene image in pipeline construction period and storage medium | |
| CN113935096A (en) | Method and system for monitoring foundation pit deformation in real time | |
| KR20130024402A (en) | Outdoor seamless positioning method and apparatus thereof | |
| KR102357109B1 (en) | Tunnel surface mapping system under construction | |
| CN111719603B (en) | Foundation pit monitoring method based on unmanned aerial vehicle | |
| JP2000251059A (en) | Ground surface image monitoring device | |
| KR20110044092A (en) | Apparatus and method for modeling building | |
| KR102413163B1 (en) | Measuring method for wall structure using drone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |