CN113762155A - Land dynamic supervision method and device based on satellite remote sensing image - Google Patents
Land dynamic supervision method and device based on satellite remote sensing image Download PDFInfo
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Abstract
The invention provides a land dynamic supervision method based on a satellite remote sensing image, which comprises the following steps: acquiring a plurality of target images which are fed back by a satellite and correspond to target land in different periods; determining the change condition of the target land according to the plurality of target images; determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state. A land dynamic supervision device based on the satellite remote sensing image is also provided. By the method and the device for dynamically supervising the land based on the satellite remote sensing image, the target image corresponding to the target land is obtained by utilizing the satellite remote sensing technology, so that the change condition and the current use state of the target land can be determined, manual inspection is not needed, and the labor cost and the government supervision pressure are greatly reduced; in addition, automatic supervision is realized by using the target image, and the supervision efficiency and the supervision quality are improved.
Description
Technical Field
The invention relates to the technical field of land supervision, in particular to a method and a device for dynamically supervising land based on satellite remote sensing images.
Background
The land unit can perform project construction on the land after being approved by the government, and the government needs to perform perfect supervision duties after the land is supplied, so that the land resource saving and efficient utilization are promoted. At present, manual field inspection is basically adopted for supervision after land supply, and supervision personnel go to the field at different stages, record corresponding data and then feed back.
However, the manual field patrol is adopted to realize the supervision after land supply, so that a large amount of labor cost is required, and the supervision pressure of the government is increased; in addition, the efficiency of manual on-site inspection is low, and large errors easily occur in data recording, so that the supervision quality is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method and a device for dynamically supervising land based on a satellite remote sensing image.
In a first aspect, in one embodiment, the present invention provides a method for land dynamic supervision based on satellite remote sensing images, including:
acquiring a plurality of target images which are fed back by a satellite and correspond to target land in different periods;
determining the change condition of the target land according to the plurality of target images;
determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
In one embodiment, acquiring a plurality of target images fed back by satellites and corresponding to target land at different times comprises:
acquiring a plurality of initial images which are fed back by a satellite and correspond to target land in different periods;
and performing circle drawing on the plurality of initial images according to the preset circle drawing line to obtain a plurality of target images.
In one embodiment, determining a change in the target land based on the plurality of target images includes:
and inputting the plurality of target images into the trained change determination model to obtain the change condition output by the change determination model.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
acquiring an electronic contract corresponding to a target land, and reading a time limit in the electronic contract;
after the step of determining the use state of the target land according to the change situation, the land dynamic supervision method based on the satellite remote sensing image further comprises the following steps:
and determining default conditions according to the time and the time limit corresponding to the current use state.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
releasing the target image through a GeoServer;
receiving an operation instruction input by a user;
and updating, deleting and/or inserting the target image according to the operation instruction.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
inquiring all electronic contracts with the same preset contract characteristics;
and merging all electronic contracts with the same preset contract characteristics.
In one embodiment, before the step of querying all electronic contracts with the same preset contract characteristics, the method for dynamically supervising the land based on the satellite remote sensing image further includes:
receiving a selection instruction input by a user;
and selecting a certain dry contract characteristic from all the contract characteristics according to the selection instruction and determining the dry contract characteristic as a preset contract characteristic.
In a second aspect, in one embodiment, the present invention provides a land dynamic supervision apparatus based on satellite remote sensing images, including:
an image acquisition unit for acquiring a plurality of target images fed back by a satellite and corresponding to a target land at different periods;
the change determining unit is used for determining the change condition of the target land according to the target images;
the state determining unit is used for determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the time limit determining unit is used for acquiring an electronic contract corresponding to the target land and reading the time limit in the electronic contract;
and the default determining unit is used for determining default conditions according to the time and the time limit corresponding to the current use state after the step of determining the use state of the target land according to the change condition.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the contract merging unit is used for inquiring all electronic contracts with the same preset contract characteristics; and merging all electronic contracts with the same preset contract characteristics.
By the method and the device for dynamically supervising the land based on the satellite remote sensing image, the target image corresponding to the target land is obtained by utilizing the satellite remote sensing technology, so that the change condition and the current use state of the target land can be determined, manual inspection is not needed, and the labor cost and the government supervision pressure are greatly reduced; in addition, automatic supervision is realized by using the target image, and the supervision efficiency and the supervision quality are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic flow chart of a method for dynamically supervising land based on satellite remote sensing images according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating an embodiment of acquiring a target image;
FIG. 3 is a schematic flow chart of contract merge according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a land dynamic monitoring device based on satellite remote sensing images according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the internal structure of a computer device according to an embodiment of the present invention.
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.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In a first aspect, as shown in fig. 1, in one embodiment, the present invention provides a method for dynamically supervising land based on satellite remote sensing images, including:
In which a satellite revolving around the earth is stationary with respect to the earth, and thus a position photographed by a camera disposed on the satellite is constant, thereby enabling continuous monitoring of the ground. The camera deployed on the satellite acquires the image of the target land and then transmits the image to the ground station through satellite communication, the image transmitted by the ground station is further acquired, and the target image can be obtained after processing.
Because the change condition of the target land needs to be judged, a plurality of target images in different periods need to be acquired; specifically, in one embodiment, a current target image is acquired and processed from a ground station, a pre-construction target image is acquired from local storage, and a simulated as-constructed target image is acquired from local storage.
And step 104, determining the change condition of the target land according to the plurality of target images.
The change condition needs to be obtained by respectively comparing the current target image with the target image before start-up and the target image after completion; specifically, the scale of the building in the target image can be compared to judge whether the scale of the building is increased or not and the increase degree; furthermore, the feature points of the building in the target image can be identified, and the building is determined according to the feature points, so that the scale of the building in the target image is calculated.
And 106, determining the current use state of the target land according to the change condition.
The current use state comprises an on-state, an off-state or an idle state.
If the building scale in the current target image is identified to be equal to the building scale in the target image before operation, the target land is in an idle state; if the building scale in the current target image is recognized to be equal to the building scale in the target image before the start of work and smaller than the building scale in the completed target image, the target land is in the start of work state; if the building size in the current target image is recognized to be equal to or larger than the building size in the completed target image, the target land is in an as-built state. Specifically, the operation state may be divided into stages, for example, the difference between the building scale in the current target image and the building scale in the target image before the operation and the difference between the building scale in the target image after the completion are detected, and if the difference is smaller than the difference before the operation and larger than the difference after the completion, the target land may be further determined to be in the early stage of the operation; if the difference degree between the target land and the target land before the start of the construction is basically the same as the difference degree between the target land and the target land after the completion of the construction, the target land can be further determined to be in the middle stage of the construction; if the degree of difference from before the start of work is large and the degree of difference from after the completion of work is small, it is possible to further confirm that the target land is in the completion state.
Corresponding state reminding can be performed according to the current use state of the target land, so that a supervisor can know the state in time; specifically, the state reminder includes an idle reminder, a start early reminder, a start middle reminder, a start later reminder, and a completion reminder.
By the land dynamic supervision method based on the satellite remote sensing image, the target image corresponding to the target land is obtained by utilizing the satellite remote sensing technology, so that the change condition and the current use state of the target land can be determined, manual patrol is not needed, and the labor cost and the supervision pressure of the government are greatly reduced; in addition, automatic supervision is realized by using the target image, and the supervision efficiency and the supervision quality are improved.
As shown in fig. 2, in one embodiment, acquiring a plurality of target images fed back by the satellite and corresponding to the target land at different times includes:
at step 202, a plurality of initial images corresponding to the target land and fed back by the satellite in different periods are obtained.
The initial image is an original image directly shot by a camera deployed on a satellite and is not processed.
And 204, circling the plurality of initial images according to the preset circling lines to obtain a plurality of target images.
The preset circled line is a virtual boundary line of a target land obtained by circling in an initial image before operation, and the position shot by the camera is constant, so that the area range of the obtained initial image is also constant, and the circled line can be directly circled in the subsequently obtained initial image through the preset circled line to obtain a corresponding target image.
The boundary line of the target land can be directly determined in the target image through the preset circled line, so that the interference caused by the region outside the target land is eliminated, and the efficiency and the precision of the subsequent determination of the change condition and the current use state are improved.
In one embodiment, determining a change in the target land based on the plurality of target images includes:
and inputting the plurality of target images into the trained change determination model to obtain the change condition output by the change determination model.
The change situation is determined through the machine model, and the interference of related noise can be eliminated in continuous training by utilizing the advantage of machine learning.
In one embodiment, the training step of the change determination model comprises:
acquiring a training sample set, wherein the training sample set comprises a plurality of training samples, and each training sample comprises a plurality of training target images and training change conditions;
acquiring a training sample, taking a plurality of training target images as input of a change determination model, taking training change conditions as expected output of the change determination model, and training the change determination model to finish one-time training;
determining a comparison result between the actual output and the expected output of the change determination model, and if the comparison result does not meet the requirement, updating the model parameters of the change determination model according to the comparison result;
and acquiring a next training sample, then re-entering the step of taking a plurality of training target images as the input of the change determination model, taking the training change condition as the expected output of the change determination model, and training the change determination model until the obtained comparison result meets the requirement, stopping training, and obtaining the trained change determination model.
In one embodiment, determining a comparison result between an actual output and an expected output of the change determination model, and if the comparison result does not meet a requirement, updating a model parameter of the change determination model according to the comparison result, including:
determining a comparison difference value between the actual output and the expected output of the change determination model, and calculating according to the comparison difference value to obtain a loss value;
and if the loss value does not meet the preset convergence condition, updating and changing the model parameters of the determined model according to the loss value.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
and acquiring an electronic contract corresponding to the target land, and reading a time limit in the electronic contract.
Wherein each target land has a corresponding electronic contract in which a start time limit and an end time limit of the target land are agreed, so that the corresponding electronic contract can be automatically acquired and a time limit thereof can be read.
After the step of determining the use state of the target land according to the change situation, the land dynamic supervision method based on the satellite remote sensing image further comprises the following steps:
and determining default conditions according to the time and the time limit corresponding to the current use state.
For example, if the current time is 9/2/2021, the target land is determined to be a later stage of construction from the acquired target image, and the read completion time is 20/8/2021, it indicates that the completion is not completed on time.
Wherein, to every kind of default circumstances, carry out corresponding warning to supervisory personnel in time knows.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
releasing the target image through a GeoServer;
receiving an operation instruction input by a user;
and updating, deleting and/or inserting the target image according to the operation instruction.
The GeoServer is space data viewing software, map data can be conveniently published by the GeoServer, users are allowed to update, delete and insert feature data, and space geographic information can be easily and rapidly shared among the users through the GeoServer. Specifically, a new data format can be written in through various interfaces and helper classes of the GeoTools, and the GeoTools can support more data formats and modify image data in time without recompiling through plug-ins provided for the geoservers.
As shown in fig. 3, in an embodiment, the method for dynamically supervising land based on satellite remote sensing images further includes:
Wherein, the contract characteristics include the parties, the signing time, the contract target (target land), etc., for example, a plurality of electronic contracts signed by the same parties for different target lands, and all corresponding electronic contracts can be queried based on the contract characteristic of "the parties".
And step 304, merging all electronic contracts with the same preset contract characteristics.
Through the combination of the electronic contract, the storage structure can be simplified, the supervision personnel can conveniently and uniformly check the electronic contract, and the supervision efficiency is improved.
In one embodiment, before the step of querying all electronic contracts with the same preset contract characteristics, the method for dynamically supervising the land based on the satellite remote sensing image further includes:
receiving a selection instruction input by a user;
and selecting a certain dry contract characteristic from all the contract characteristics according to the selection instruction and determining the dry contract characteristic as a preset contract characteristic.
The corresponding contract characteristics are selected by the supervisor as the preset contract characteristics, so that the combination can be carried out according to the requirements of the supervisor during the combination, and the combination flexibility is improved.
In one embodiment, the method for dynamically supervising land based on satellite remote sensing images further comprises:
adjusting the preset drawn lines according to the instructions of the user, integrating the retail land, comprehensively adjusting the electronic contract and increasing or decreasing the buildings.
In a second aspect, as shown in fig. 4, in one embodiment, the present invention provides a land dynamic monitoring device based on satellite remote sensing images, comprising:
an image acquisition unit 402 for acquiring a plurality of target images at different periods, which are fed back by satellites and correspond to target land;
a change determining unit 404, configured to determine a change condition of the target land according to the plurality of target images;
a state determining unit 406, configured to determine a current usage state of the target land according to the change condition; the current use state comprises a start-up state, a completion state or an idle state;
and a state reminding unit 408 for reminding the current use state.
By the aid of the land dynamic supervision device based on the satellite remote sensing images, the target images corresponding to the target land are obtained by the satellite remote sensing technology, so that the change condition and the current use state of the target land can be determined, manual inspection is not needed, and labor cost and government supervision pressure are greatly reduced; in addition, automatic supervision is realized by using the target image, and the supervision efficiency and the supervision quality are improved.
In one embodiment, the image acquisition unit is specifically configured to acquire a plurality of initial images fed back by the satellite and corresponding to the target land at different times; and performing circle drawing on the plurality of initial images according to the preset circle drawing line to obtain a plurality of target images.
In an embodiment, the change determining unit is specifically configured to input the plurality of target images into a trained change determining model, and obtain a change condition of an output of the change determining model.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the time limit determining unit is used for acquiring an electronic contract corresponding to the target land and reading the time limit in the electronic contract;
and the default determining unit is used for determining default conditions according to the time and the time limit corresponding to the current use state after the step of determining the use state of the target land according to the change condition.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the image management unit is used for issuing the target image through the GeoServer; receiving an operation instruction input by a user; and updating, deleting and/or inserting the target image according to the operation instruction.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the contract merging unit is used for inquiring all electronic contracts with the same preset contract characteristics; and merging all electronic contracts with the same preset contract characteristics.
In one embodiment, the land dynamic monitoring device based on the satellite remote sensing image further includes:
the characteristic determining unit is used for receiving a selection instruction input by a user before the step of inquiring all electronic contracts with the same preset contract characteristics; and selecting a certain dry contract characteristic from all the contract characteristics according to the selection instruction and determining the dry contract characteristic as a preset contract characteristic.
In a third aspect, as shown in fig. 5, in one embodiment, the present invention provides a computer device comprising a memory and a processor, the memory having stored therein a computer program that, when executed by the processor, causes the processor to perform the steps of:
acquiring a plurality of target images which are fed back by a satellite and correspond to target land in different periods;
determining the change condition of the target land according to the plurality of target images;
determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
In a fourth aspect, in one embodiment, the present invention provides a storage medium storing a computer program that, when executed by a processor, causes the processor to perform the steps of:
acquiring a plurality of target images which are fed back by a satellite and correspond to target land in different periods;
determining the change condition of the target land according to the plurality of target images;
determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
Through the computer equipment and the storage medium, the satellite remote sensing technology is utilized to obtain the target image corresponding to the target land, so that the change condition and the current use state of the target land can be determined, manual inspection is not needed, and the labor cost and the government supervision pressure are greatly reduced; in addition, automatic supervision is realized by using the target image, and the supervision efficiency and the supervision quality are improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A land dynamic supervision method based on satellite remote sensing images is characterized by comprising the following steps:
acquiring a plurality of target images which are fed back by a satellite and correspond to target land in different periods;
determining the change condition of the target land according to the target images;
determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
2. The method for dynamically supervising land based on satellite remote sensing images according to claim 1, wherein the acquiring a plurality of target images fed back by a satellite and corresponding to target land in different periods comprises:
acquiring a plurality of initial images which are fed back by a satellite and correspond to target land in different periods;
and circling the plurality of initial images according to a preset circling line to obtain a plurality of target images.
3. The land dynamic supervision method based on satellite remote sensing images as claimed in claim 1, wherein the determining the change condition of the target land according to a plurality of target images comprises:
and inputting a plurality of target images into a trained change determination model to obtain the change condition output by the change determination model.
4. The land dynamic supervision method based on satellite remote sensing images as claimed in claim 1, characterized by further comprising:
acquiring an electronic contract corresponding to the target land, and reading a time limit in the electronic contract;
after the step of determining the use state of the target land according to the change situation, the method further comprises the following steps:
and determining default conditions according to the time corresponding to the current use state and the time limit.
5. The land dynamic supervision method based on satellite remote sensing images as claimed in claim 1, characterized by further comprising:
releasing the target image through a GeoServer;
receiving an operation instruction input by a user;
and updating, deleting and/or inserting the target image according to the operation instruction.
6. The land dynamic supervision method based on satellite remote sensing images as claimed in claim 1, characterized by further comprising:
inquiring all electronic contracts with the same preset contract characteristics;
and combining all the electronic contracts with the same preset contract characteristics.
7. The method for dynamically supervising land based on satellite remote sensing images as claimed in claim 6, wherein before the step of querying all electronic contracts with the same preset contract characteristics, the method further comprises:
receiving a selection instruction input by a user;
and selecting a certain dry contract characteristic from all the contract characteristics according to the selection instruction and determining the dry contract characteristic as the preset contract characteristic.
8. A land dynamic supervision device based on satellite remote sensing images is characterized by comprising:
an image acquisition unit for acquiring a plurality of target images fed back by a satellite and corresponding to a target land at different periods;
the change determining unit is used for determining the change condition of the target land according to the target images;
the state determining unit is used for determining the current use state of the target land according to the change condition; the current use state includes an on-state, an off-state, or an idle state.
9. The land dynamics supervision apparatus based on satellite remote sensing image according to claim 8, characterized by further comprising:
the time limit determining unit is used for acquiring an electronic contract corresponding to the target land and reading a time limit in the electronic contract;
and a default determining unit, configured to determine, after the step of determining the usage state of the target land according to the change situation, a default situation according to the time corresponding to the current usage state and the time limit.
10. The land dynamics supervision apparatus based on satellite remote sensing image according to claim 8, characterized by further comprising:
the contract merging unit is used for inquiring all electronic contracts with the same preset contract characteristics; and combining all the electronic contracts with the same preset contract characteristics.
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| CN111080271A (en) * | 2019-12-31 | 2020-04-28 | 青岛市自然资源监测中心 | System and method for land batch supervision |
| CN112357081A (en) * | 2020-09-14 | 2021-02-12 | 浙江省自然资源征收中心 | Method for collecting planting, loading, construction and monitoring data in land collection |
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| CN114782815A (en) * | 2022-04-26 | 2022-07-22 | 平安普惠企业管理有限公司 | Method, device and equipment for automatically supervising greenbelt and storage medium |
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