CN109819138A - A kind of method and system of monitoring field sampling - Google Patents
A kind of method and system of monitoring field sampling Download PDFInfo
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- CN109819138A CN109819138A CN201910082251.1A CN201910082251A CN109819138A CN 109819138 A CN109819138 A CN 109819138A CN 201910082251 A CN201910082251 A CN 201910082251A CN 109819138 A CN109819138 A CN 109819138A
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Abstract
This application discloses a kind of method and systems of monitoring field sampling, are related to environmental monitoring technology field, solve the technical problem of the data falseness caused in the prior art by GPS location fraud.The method of the monitoring field sampling of the application, includes the following steps: to receive field data；Field data is parsed, location information is obtained；Judge executor whether at the scene according to location information；At the scene in response to executor, the sampled data that executor returns is received.The application is mainly used for monitoring sampling.
Description
Technical field
This application involves environmental monitoring technology fields, and in particular to a kind of method and system of monitoring field sampling.
Background technique
In the prior art, the usual way for recording the position of field data is exactly that the longitude and latitude in record location at that time is sentenced
It is disconnected whether to reach designated position.But falseness can be arranged through the analog position function of mobile phone in the longitude and latitude in location at that time
GPS information, and false GPS information is fed back into system, thus the problem of appearance position falseness.Position falseness will lead to
Data are false, and live technical work cannot be protected, damage the interests of client.
Summary of the invention
The purpose of the application is to propose a kind of method and system of monitoring field sampling, lead in the prior art for solving
Cross the technical problem for the data falseness that GPS location fraud causes.
The method of the monitoring field sampling of the application, includes the following steps: to receive field data；Field data is parsed, is obtained
Obtain location information；Judge executor whether at the scene according to location information；At the scene in response to executor, executor is received to return
Sampled data.
Optionally, location information includes the longitude and latitude in GPS information, the longitude and latitude in image information, obtains location information
Time, image information photo opporunity stamp and convert the ciphertext of encrypted image information.
Preferably, judge whether method at the scene includes: the position extracted in location information to executor according to location information
Confidence breath and temporal information；The data accuracy of Extracting Information is judged；It is accurate in response to the data of Extracting Information, to figure
As information carries out conversion encryption, acquisition ciphertext；The ciphertext of acquisition is compared with the ciphertext in field data；In response to obtaining
Ciphertext it is consistent with the ciphertext in field data, the data of image information are accurate；It is accurate in response to the data of image information, judgement
Executor is at the scene.
Preferably, the method data accuracy of Extracting Information judged include: by the location information of extraction and when
Between information be compared respectively with the corresponding informance prestored；Compare extraction location information and the location information prestored, extract
Whether the difference of temporal information and the temporal information prestored is in threshold range；Location information, temporal information in response to extraction
Difference in threshold range, the data of Extracting Information are accurate.
Preferably, conversion encryption is carried out to image information, the method for obtaining ciphertext includes: to extract the longitude and latitude of live image
Degree, photo opporunity stamp, and live image is converted into matrix；By the longitude and latitude of live image, photo opporunity stamp and matrix difference
It is converted into information flow；Information flow is converted into ciphertext by Encryption Algorithm.
Optionally, in response to the location information of extraction, the difference of temporal information any difference outside threshold range, judgement
Executor at the scene, does not send executor to client and does not instruct at the scene.
Optionally, inconsistent in response to the ciphertext in the ciphertext and field data of acquisition, the data inaccuracy of image information,
Judge that executor at the scene, does not send executor to client and do not instruct at the scene.
Optionally, image information is RGB image.
The method of the monitoring field sampling of the application, on the one hand, distinguish the location information in location information, temporal information
It is compared with the location information prestored, demonstrates the accuracy of location information；On the one hand, by the image information in field data
Encrypted authentication is carried out, image information is avoided and is distorted in transmission process, ensure that the accuracy of data.
The system that the application also proposes a kind of monitoring field sampling, the side suitable for monitoring field as described above sampling
Method, comprising:
First receiving module, for receiving field data；
Parsing module obtains location information for parsing field data；
Judgment module, for judging executor whether at the scene according to location information；
Second receiving module, at the scene, receiving the sampled data that executor returns in response to executor.
The system of the monitoring field sampling of the application is consistent with the technical effect of method that the monitoring field of the application samples,
It does not just repeat one by one herein.
The application also proposes a kind of client, comprising:
Station acquisition unit, location information and image information for collection site；
Encryption unit obtains the ciphertext of image information for converting encrypted image information；
Input unit, for inputting the sampled data at scene；
Transmission unit, for sending data.
The client of the application encrypts the image information in field data, avoids image information and is being transmitted across
It is distorted in journey, ensure that the accuracy of data.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application can also be obtained according to these attached drawings other for those of ordinary skill in the art
Attached drawing.
Fig. 1 is the flow chart of the method for the monitoring field sampling of the application；
Fig. 2 be judge executor whether the flow chart of method at the scene；
Fig. 3 is the flow chart judged the data accuracy of location information；
Fig. 4 is that the application to image information carries out conversion encryption, obtains the flow chart of ciphertext；
Fig. 5 is the flow chart that information flow is converted to ciphertext by Encryption Algorithm of the application；
Fig. 6 is the block diagram of the system of the monitoring field sampling of the application；
Fig. 7 is the block diagram of the client of the application.
Specific embodiment
Below with reference to the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiment is some embodiments of the present application, instead of all the embodiments.Based on the application
In embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the application protection.
Embodiment one
Fig. 1 is the flow chart of the method for the monitoring field sampling of the application.As shown in Figure 1, the monitoring field of the application is adopted
The method of sample includes:
It receives field data (110)；
Specifically, the field data that client returns is received.Field data includes the GPS of the expression client location at scene
Information further includes image information and the ciphertext for converting encrypted image information.Wherein, image information is such as RGB image.
Field data is parsed, is obtained location information (120)；
Further, the location information of acquisition includes: the longitude and latitude in GPS information, the longitude and latitude in image information, obtains
The information such as time of location information, the photo opporunity stamp of image information and the ciphertext of converting encrypted image information.
It should be noted that image can generate acquisition parameters information when shooting, and acquisition parameters information is written to figure
The head of piece file, the acquisition parameters information of image include but is not limited to photo opporunity stamp, color coding, picture width, picture
Resolution ratio and camera site etc..
The extracting method of longitude and latitude in image information are as follows: the acquisition parameters information of picture is extracted from the head of picture file,
And then the camera site of picture, the i.e. longitude and latitude of picture are extracted from acquisition parameters information.In one embodiment, the bat of picture
Take the photograph EXIF (Exchangeable Image File, exchangeable image file) information that parameter information is picture.
Executor whether at the scene (130) are judged according to location information；
Specifically, Fig. 2 be judged according to location information executor whether the flow chart of method at the scene, as shown in Fig. 2,
Judge whether method at the scene includes: executor according to location information
Extract the location information and temporal information (210) in location information；
In one embodiment, the location information of extraction is the longitude and latitude in GPS information, the longitude and latitude in image information
Degree；The temporal information of extraction is the photo opporunity stamp of image information, the time for obtaining location information.
(220) are judged to the data accuracy of Extracting Information；
More specifically, Fig. 3 is the flow chart judged the data accuracy of Extracting Information, as shown in figure 3, to extraction
The method that the data accuracy of information is judged includes:
The location information of extraction and temporal information are compared (310) with the corresponding informance prestored respectively；
Illustratively, the location information prestored is to be obtained by base station and store information in the database.The position prestored
Confidence breath includes the longitude and latitude of the sampling position prestored.The time for needing to sample, that is, the temporal information prestored are also pre-stored in data
In library.
In one embodiment, the location information of extraction and temporal information are weighted summation, the public affairs of calculating respectively
Formula are as follows:
P=P1×A+P2× B formula (1)
T=T1×A+T2× B formula (2)
Wherein, P is the location information extracted, P1For the longitude and latitude in GPS information, P2For the longitude and latitude in image information；T
For the temporal information of extraction, T1For the time for obtaining location information, T2For the photo opporunity stamp in image information.A and B is preparatory
The adduction of the parameter provided, A and B are equal to 1.
The difference of the location information for comparing extraction and the location information prestored, the temporal information of extraction and the temporal information prestored
Whether value is in threshold range (320)；
Illustratively, for the comparison of longitude and latitude, unit is degree, and threshold value is accurate to after decimal point 5, such as 0.00001~
0.00009；Comparison for the time, unit are day, and threshold value is less than or equal to 2.
It should be noted that in response to the location information of extraction, the difference of temporal information any difference in threshold range
Outside, judge that executor at the scene, does not send executor to client and do not instruct at the scene.
In response to the location information of extraction, temporal information difference in threshold range, the data of Extracting Information are accurate
(330)。
It is accurate in response to the data of Extracting Information, conversion encryption is carried out to image information, is obtained ciphertext (230)；
Specifically, Fig. 4 is that the application carries out conversion encryption to image information, obtains the flow chart of ciphertext, such as Fig. 4 institute
Show, the method for obtaining ciphertext includes:
Longitude and latitude, the photo opporunity stamp of live image are extracted, and live image is converted into matrix (410)；
Preferably, RGB image is stored in three-dimensional array.There are three faces for this three-dimensional array, are corresponding in turn in red
(Red), green (Green), blue (Blue) three kinds of colors, and the data in face are then the intensity value of these three colors respectively, in face
Element correspond to image in pixel.Pixel in image constitutes matrix.
The longitude and latitude of live image, photo opporunity stamp and matrix are converted into information flow (420) respectively；
The form of expression of information flow is character string.Wherein, the longitude and latitude of live image is converted into the first character string and
Two character strings；Photo opporunity stamp is converted into third character string；It is the 4th character string by matrix conversion.First character string, second
Character string, third character string and the 4th character string constitute information flow.
Information flow is converted into ciphertext (430) by Encryption Algorithm.
Specifically, Fig. 5 is the flow chart that information flow is converted to ciphertext by Encryption Algorithm of the application, as shown in figure 5,
The method that information flow is converted into ciphertext by Encryption Algorithm are as follows:
Calculate the data length (510) that information flow needs to fill；
Information flow refers to character string.It needs to be filled each character string, so that the length of message obtains M modulus
N meets W mod M=N if message-length is W, the data length for needing to fill is calculated according to this formula.Illustratively,
W, M, N are natural number.
Filling information stream obtains the information flow (520) of final lengths；
The method of filling is that, in information flow followed by filling, first of filling is 1, remaining is 0.Letter after addition
The memory length that breath stream length can be utilized for is Q.If the length of the message after addition is greater than 2Q, then its low Q is only used
The value of position, that is, the message-length after adding is to 2QModulus.After this step carries out, final information flow length is the whole of M
Several times.Illustratively, Q is natural number.
Data processing is carried out to the information flow of final lengths, obtains final secret value (530).
Prepare the data for needing to use:
4 constants: A=0x67452301, B=0x0EFCDAB89, C=0x98BADCFE,
D=0x10325476；
4 functions: F (X, Y, Z)=(X&Y) | ((~X) &Z)；G (X, Y, Z)=(X&Z) | (Y& (~Z))；H(X,Y,Z)
=X^Y^Z；I (X, Y, Z)=Y^ (X | (~Z))；
The information flow of final lengths is handled with M for a grouping, each grouping carries out 4 round transformations, with above
Described 4 constants are that starting variable is calculated, and export 4 variables again, carry out next grouping again with 4 variables of output
Operation, if being the last one grouping, this 4 variables are last as a result, i.e. secret value.
(240) are compared with the ciphertext in field data for the ciphertext of acquisition；
Inconsistent in response to the ciphertext in the ciphertext and field data of acquisition, the data inaccuracy of image information, judgement is held
Passerby at the scene, does not send executor to client and does not instruct at the scene.
Consistent with the ciphertext in field data in response to the ciphertext of acquisition, the data of image information are accurate (250).
It is accurate in response to the data of image information, judge executor (260) at the scene.
At the scene in response to executor, the sampled data (140) that executor returns is received.
The method of the monitoring field sampling of the application, on the one hand, distinguish the location information in location information, temporal information
It is compared with the location information prestored, demonstrates the accuracy of location information；On the one hand, by the image information in field data
Encrypted authentication is carried out, image information is avoided and is distorted in transmission process, ensure that the accuracy of data.
Embodiment two
The system that the application also proposes a kind of monitoring field sampling, suitable for the sampling of monitoring field described in embodiment one
Method.Fig. 6 be the application monitoring field sampling system block diagram, as shown in fig. 6, the monitoring field of the application sample be
System includes:
First receiving module 61, for receiving field data；
Parsing module 62 obtains location information for parsing field data；
Judgment module 63, for judging executor whether at the scene according to location information；
Second receiving module 64, at the scene, receiving the sampled data that executor returns in response to executor.
It should be pointed out that the system of monitoring field sampling further includes database, all data in system are all stored in
In database.
The system of the monitoring field sampling of the application is consistent with the technical effect of method that the monitoring field of the application samples,
It does not just repeat one by one herein.
Embodiment three
The application also proposes a kind of client, and the system for sampling to the monitoring field of the application provides data, and connects
The data that receipts system returns.Fig. 7 is the block diagram of the client of the application, as shown in fig. 7, the client of the application includes:
Station acquisition unit 71, location information and image information for collection site；
Encryption unit 72 obtains the ciphertext of image information for converting encrypted image information；
Input unit 73, for inputting the sampled data at scene；
Transmission unit 74, for sending data.
Specifically, encryption unit 72 converts encrypted image information, obtains the method and the application of the ciphertext of image information
Conversion encryption is carried out to image information in embodiment one, the method for obtaining ciphertext is identical.Transmission unit 74 is used to send out to system
Send the data of station acquisition unit, encryption unit and input unit.
The client of the application encrypts the image information in field data, avoids image information in transmission process
In distort, ensure that the accuracy of data.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.Obviously, those skilled in the art can be to the application
Various modification and variations are carried out without departing from spirit and scope.If in this way, these modifications and variations of the application
Belong within the scope of the claim of this application and its equivalent technologies, then the application is also intended to encompass these modification and variations and exists
It is interior.
Claims (10)
1. a kind of method of monitoring field sampling, which comprises the steps of:
Receive field data；
Field data is parsed, location information is obtained；
Judge executor whether at the scene according to location information；
At the scene in response to executor, the sampled data that executor returns is received.
2. the method as described in claim 1, which is characterized in that location information includes longitude and latitude in GPS information, image information
In longitude and latitude, obtain time of location information, image information photo opporunity stamp and convert the close of encrypted image information
Text.
3. method according to claim 2, which is characterized in that according to location information judge executor whether method at the scene
Include:
Extract the location information and temporal information in location information；
The data accuracy of Extracting Information is judged；
It is accurate in response to the data of Extracting Information, conversion encryption is carried out to image information, obtains ciphertext；
The ciphertext of acquisition is compared with the ciphertext in field data；
Consistent with the ciphertext in field data in response to the ciphertext of acquisition, the data of image information are accurate；
It is accurate in response to the data of image information, judge executor at the scene.
4. method as claimed in claim 3, which is characterized in that the method packet judged the data accuracy of Extracting Information
It includes:
The location information of extraction and temporal information are compared with the corresponding informance prestored respectively；
The difference for comparing the location information and the location information prestored, the temporal information and the temporal information prestored of extraction of extraction is
It is no in threshold range；
In response to the location information of extraction, temporal information difference in threshold range, the data of Extracting Information are accurate.
5. method as claimed in claim 3, which is characterized in that carry out conversion encryption to image information, the method for obtaining ciphertext
Include:
Longitude and latitude, the photo opporunity stamp of live image are extracted, and live image is converted into matrix；
The longitude and latitude of live image, photo opporunity stamp and matrix are converted into information flow respectively；
Information flow is converted into ciphertext by Encryption Algorithm.
6. method as claimed in claim 3, which is characterized in that
In response to the location information of extraction, the difference of temporal information any difference outside threshold range, judge that executor does not exist
Scene sends executor to client and does not instruct at the scene.
7. method as claimed in claim 3, which is characterized in that different in response to the ciphertext in the ciphertext and field data of acquisition
It causes, the data inaccuracy of image information, judges that executor at the scene, does not send executor to client and do not instruct at the scene.
8. method according to claim 2, which is characterized in that image information is RGB image.
9. a kind of system of monitoring field sampling characterized by comprising
First receiving module, for receiving field data；
Parsing module obtains location information for parsing field data；
Judgment module, for judging executor whether at the scene according to location information；
Second receiving module, at the scene, receiving the sampled data that executor returns in response to executor.
10. a kind of client characterized by comprising
Station acquisition unit, location information and image information for collection site；
Encryption unit obtains the ciphertext of image information for converting encrypted image information；
Input unit, for inputting the sampled data at scene；
Transmission unit, for sending data.
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