CN107764483B - Leakage monitoring method and device based on temperature spatial and temporal distributions matrix - Google Patents
Leakage monitoring method and device based on temperature spatial and temporal distributions matrix Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of leakage monitoring method and device based on temperature spatial and temporal distributions matrix, the leakage monitoring method based on temperature spatial and temporal distributions matrix includes that the actual temperature change value on testee periphery is obtained according to prefixed time interval, to generate the actual measurement spatial and temporal distributions matrix for characterizing temperature variations；The difference for seeking the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, as reference spatial and temporal distributions matrix；Judge whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if not satisfied, then there are liquid leakages on the testee periphery.During practical engineering application, the present invention can realize the effective monitoring to engineering leakage situation according to temperature change, and this method is simple, and it is convenient to realize.
Description
Technical field
The present invention relates to engineering leakage monitoring technology fields, are based on temperature spatial and temporal distributions matrix in particular to one kind
Leakage monitoring method and device.
Background technique
Existing engineering leakage monitoring theory and method mainly estimate the seepage velocity of leak location according to temperature measured value, but
It is to need to carry out operation compared with multi input parameter, causes operation sufficiently complex.In addition, soil layer material to be measured is not in practical projects
Equal uniformity not only cannot achieve effective monitoring, but also can not carry out timely early warning, to real so that these input parameters are difficult to determine
Border application brings very big difficulty.
Summary of the invention
In view of this, the present invention provides a kind of leakage monitoring method and device based on temperature spatial and temporal distributions matrix, it can
Effectively solve the above problems.
Present pre-ferred embodiments provide a kind of leakage monitoring method based on temperature spatial and temporal distributions matrix, comprising:
The actual temperature change value of the multiple measuring points in testee periphery is obtained according to prefixed time interval, is used for table to generate
Levy the actual measurement spatial and temporal distributions matrix of temperature change；
The difference for seeking the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, as reference spatial and temporal distributions square
Battle array；
Judge whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if not satisfied, the then matrix element
Nearby there are liquid leakages for the corresponding measuring point of element.
In the selection of present pre-ferred embodiments, if nearby there are liquid to let out for the corresponding measuring point of the described matrix element
Leakage, the method also includes:
Calculate the variance of the theoretical spatial and temporal distributions matrix；
For described with reference to each of spatial and temporal distributions matrix reference element, the reference element and the variance are carried out
Compare；
Judge whether the reference element is located at first threshold section according to comparison result, if being located at, generate warning information,
And the warning information is sent to engineering management terminal.
In the selection of present pre-ferred embodiments, the first threshold section includes multiple threshold value subintervals, described pre-
Alert information includes multiple early warning sub-informations corresponding with multiple threshold value subinterval；
Judge whether the reference element is located at first threshold section, if the step of being located at, generating warning information includes:
Judge whether the reference element is located at the multiple threshold value subinterval, if being located at, to the reference element institute
The threshold value subinterval being located at is marked；
Early warning sub-information corresponding with labeled threshold value subinterval is called, and the early warning sub-information is sent to the work
Thread management terminal.
In the selection of present pre-ferred embodiments, if nearby there are liquid leakage, institutes for the corresponding measuring point of the matrix element
State method further include:
For described with reference to each of spatial and temporal distributions matrix reference element, by the reference element and the theoretical space-time
The theoretical elemental of corresponding position is compared in distribution matrix；
Judge whether the reference element is located at second threshold section, if being located at, generate warning information, and by the early warning
Information is sent to engineering management terminal.
In the selection of present pre-ferred embodiments, the theory spatial and temporal distributions matrix is for characterizing testee periphery
The theoretical value of temperature change, and the theory spatial and temporal distributions matrix be in the case where testee periphery does not leak, according to
Heat transfer theory and soil layer thermal parameters are calculated.
In the selection of present pre-ferred embodiments, the actual measurement spatial and temporal distributions matrix and the theoretical spatial and temporal distributions matrix
It is to be calculated under the background of thermal pulse method.
Present pre-ferred embodiments also provide a kind of leakage monitoring device based on temperature spatial and temporal distributions matrix, comprising:
Data acquisition module, the actual temperature for obtaining the multiple measuring points in testee periphery according to prefixed time interval become
Change value, to generate the actual measurement spatial and temporal distributions matrix for characterizing temperature change；
Difference seeks module, for seeking the difference of the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, makees
To refer to spatial and temporal distributions matrix；
Judgment module, for judging whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if discontented
Foot, then nearby there are liquid leakages for the corresponding measuring point of the matrix element.
In the selection of present pre-ferred embodiments, described device further include:
Variance computing module, for calculating the variance of the theoretical spatial and temporal distributions matrix；
Comparison module, it is described with reference to each of spatial and temporal distributions matrix reference element for being directed to, by the reference element
It is compared with the variance；
Warning module, for judging whether the reference element is located at first threshold section according to comparison result, if being located at,
Warning information is generated, and the warning information is sent to engineering management terminal.
In the selection of present pre-ferred embodiments, the first threshold section includes multiple threshold value subintervals, described pre-
Alert information includes multiple early warning sub-informations corresponding with multiple threshold value subinterval, and the warning module includes:
Judging unit, for judging whether the reference element is located at the multiple threshold value subinterval, if being located at, to institute
The threshold value subinterval that reference element is located at is stated to be marked；
Prewarning unit is believed for calling early warning sub-information corresponding with labeled threshold value subinterval, and by early warning
Breath is sent to the engineering management terminal.
In the selection of present pre-ferred embodiments, described device further includes preprocessing module, and the preprocessing module is used
In the case where not leaked on testee periphery, when calculating described theoretical according to heat transfer theory and soil layer thermal parameters
Empty distribution matrix.
Compared with prior art, a kind of leakage monitoring method and dress based on temperature spatial and temporal distributions matrix provided by the invention
It sets, actual measurement spatial and temporal distributions matrix is formed by the temperature value according to the actual measurements of multiple measuring points on object under test periphery, and by the reality
It surveys spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix carries out asking poor, and then obtain whether testee occurs the leakage such as liquid,
To realize effective monitoring and management to engineering project, natural calamity caused by leakage phenomenon is avoided to occur.
In addition, the present invention can also carry out early warning according to leakage scenarios, the validity of project monitor and control, and the party are further increased
Method is simple, and it is convenient to realize.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is that the application scenarios of the leakage monitoring device provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix show
It is intended to.
Fig. 2 is that the process of the leakage monitoring method provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix is illustrated
Figure.
Fig. 3 is that the sub-process of the leakage monitoring method provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix is illustrated
Figure.
Fig. 4 is another sub-process of the leakage monitoring method provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix
Schematic diagram.
Fig. 5 is that the frame structure of the leakage monitoring device provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix shows
It is intended to.
Fig. 6 is the frame structure schematic diagram of warning module provided in an embodiment of the present invention.
Icon: 10- electric terminal；Leakage monitoring device of the 100- based on temperature spatial and temporal distributions matrix；110- data acquisition
Module；120- difference seeks module；130- judgment module；140- variance computing module；150- comparison module；160- early warning mould
Block；162- judging unit；164- prewarning unit；170- preprocessing module；200- memory；300- storage control；At 400-
Manage device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
As shown in Figure 1, being leakage monitoring method of the application provided in an embodiment of the present invention based on temperature spatial and temporal distributions matrix
With the frame structure schematic diagram of the electric terminal 10 of device.The electric terminal 10 includes the infiltration based on temperature spatial and temporal distributions matrix
Leak monitoring device 100, memory 200, storage control 300 and processor 400.
Wherein, the memory 200, storage control 300, each element of processor 400 be between each other directly or indirectly
It is electrically connected, to realize the transmission or interaction of data.For example, passing through one or more communication bus or signal between these elements
Line, which is realized, to be electrically connected.The leakage monitoring device 100 based on temperature spatial and temporal distributions matrix includes at least one can be with software
Or the form of firmware is stored in the memory 200 or is solidificated in the software function in the operating system of the electric terminal 10
Module.The processor 400 accesses the memory 200 under the control of the storage control 300, with described for executing
The executable module stored in memory 200, such as the leakage monitoring device 100 based on temperature spatial and temporal distributions matrix are wrapped
Software function module and computer program for including etc..
Optionally, the electric terminal 10 may be, but not limited to, smart phone, IPAD, computer, server etc..
It should be appreciated that structure shown in FIG. 1 is only to illustrate.The electric terminal 10 can have it is more than shown in Fig. 1 or
The less component of person, or with the configuration different from shown in Fig. 1.Wherein, each component shown in FIG. 1 can be by software, hardware
Or a combination thereof realize.
As shown in Fig. 2, being a kind of leakage monitoring based on temperature spatial and temporal distributions matrix that present pre-ferred embodiments provide
The flow diagram of method.It is whole that the leakage monitoring method based on temperature spatial and temporal distributions matrix is applied to electronics shown in FIG. 1
End 10.Below in conjunction with Fig. 2 to the detailed process of the leakage monitoring method based on temperature spatial and temporal distributions matrix and step into
Row elaborates.
Step S110 obtains the actual temperature change value of the multiple measuring points in testee periphery according to prefixed time interval, with
Generate the actual measurement spatial and temporal distributions matrix for characterizing temperature change.
In the present embodiment, the object under test can be Tu Shidiba, pipeline etc., be monitored to the object under test
When, a measuring point is monitored by choosing multiple measuring points on the object under test periphery, and to this.In particular it is required that tested
Laying optical fiber and cable in soil layer where object, and periodically cable is heated, then by such as distribution type fiber-optic or optical fiber
Grating temperature meter etc. is spaced the temperature variations of soil layer in detection cable heating process at preset timed intervals, and then is become according to temperature
Change value judges whether the testee leaks.
Wherein, when getting different soil (different measuring points), difference by distribution type fiber-optic or optical fiber grating temperature meter
Between temperature value after, form the actual measurement spatial and temporal distributions matrix for characterizing temperature change.Optionally, the actual measurement spatial and temporal distributions matrix
It can be expressed as Indicate the measured value of the n-th measuring point k moment temperature change.
It should be noted that the prefixed time interval can flexibly be set according to actual needs, the present embodiment does not limit herein
System.
Step S120 seeks the difference of the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, when as reference
Empty distribution matrix.
Wherein, the theoretical spatial and temporal distributions matrix is used to characterize the theoretical value of the temperature change on testee periphery, and should
Theoretical spatial and temporal distributions matrix is in the case where testee periphery (multiple measuring points) does not leak, according to heat transfer theory
It is calculated with soil layer thermal parameters, details are not described herein for the present embodiment.Optionally, the theoretical spatial and temporal distributions matrix can indicate
ForWherein,Indicate the theoretical value of the n-th measuring point k moment temperature change.
Step S130, judges whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if not satisfied, then
Nearby there are liquid leakages for the corresponding measuring point of the matrix element.
In the present embodiment, it is assumed that the background of the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix in thermal pulse method
Under be calculated, then, there is no the regions of seepage failure, due to the influence of electric cable heating, the temperature on object under test periphery
Degree is to increase increase with time, but the region of seepage failure if it exists, it will leakage passage is formed, meanwhile, pass through cable
The heat of heating input can also be taken away by leak fluid so that temperature increase at any time and reduce.
Therefore, in the present embodiment, based on the above principles, if assume that referring to spatial and temporal distributions matrix T is T=F-H, when this
With reference to spatial and temporal distributions matrix T, there are negative values, i.e., it is believed that there are liquid leakages on the testee periphery.But in actual implementation,
The preset value can be 0, can also carry out flexible design according to actual needs.
Based on above-mentioned analysis, if testee periphery is there are fluid seepage, the present invention gives leakage method for early warning.Tool
Body, according to the difference of soil property, used method can also be different.For example, can both pass through Fig. 2 step S140- shown in
Step S160 realizes early warning；Again early warning can be realized by step S170- step S180 shown in Fig. 4.It below will be to step
S140- step S180 describes in detail.
Step S140 calculates the variance of the theoretical spatial and temporal distributions matrix.
Step S150, for described with reference to each of spatial and temporal distributions matrix reference element, by the reference element and institute
Variance is stated to be compared；
Step S160 judges whether the reference element is located at first threshold section according to comparison result, if being located at, generates
Warning information, and the warning information is sent to engineering management terminal.
In above-mentioned steps S140- step S160, the variance is used to indicate between each temperature value and population mean
Difference.Here, the specific calculating process of the variance with reference to spatial and temporal distributions matrix repeats no more.Optionally, first threshold
Value section can be set according to actual needs.For example, in the present embodiment, the first threshold section includes multiple threshold value
Section, the warning information include multiple early warning sub-informations corresponding with multiple threshold value subinterval.So, as shown in figure 3, institute
Stating step S160 can be realized by following sub-step.
Sub-step S162, judges whether the reference element is located at the multiple threshold value subinterval, if being located at, to described
The threshold value subinterval that reference element is located at is marked.
Sub-step S164, calls corresponding with labeled threshold value subinterval early warning sub-information, and by the early warning sub-information
It is sent to the engineering management terminal.
Specifically, it is assumed that the variance of the theory spatial and temporal distributions matrix is σ, can be 4 by the first threshold interval division
A threshold value subinterval, respectivelyLevel-one early warning sub-information is corresponded to, i.e. percolation ratio near measuring point i is 100%；Second level early warning sub-information is corresponded to, i.e. percolation ratio near measuring point i is more than 50%；Corresponding three
Grade early warning sub-information, i.e. nearby there may be leakages by measuring point i；Corresponding level Four early warning sub-information, i.e. near measuring point i
There can not be leakage., can be according to the corresponding relationship of reference element and aforementioned four threshold value subinterval when actual implementation, judging should
The leakage scenarios on object under test periphery.
Moreover, it is noted that the specific dividing condition and corresponding warning level, warning information in the first threshold section
Deng can flexibly being set according to the actual situation, the present embodiment is herein with no restrictions.
Further, as shown in figure 4, for the present invention provide when testee periphery some measuring point exist leakage when
Another early warning embodiment, it is specific as follows.
Step S170, for described with reference to each of spatial and temporal distributions matrix reference element, by the reference element and institute
The theoretical elemental for stating corresponding position in theoretical spatial and temporal distributions matrix is compared.
Step S180, judges whether the reference element is located at second threshold section, if being located at, generates warning information,
And the warning information is sent to engineering management terminal.
It should be noted that judging whether the reference element is located at first threshold section or the in step S140- step S180
When two threshold intervals, if it is located at, only shows the leakage scenarios near the measuring point, do not represent the leakage scenarios of other measuring points.
In addition, the second threshold section is similar with the first threshold section, flexible design, this reality can be carried out according to the actual situation
Applying example, details are not described herein.
Further, as shown in figure 5, the leakage monitoring device provided in this embodiment based on temperature spatial and temporal distributions matrix
100 are applied to the electric terminal 10, and should include data acquisition based on the leakage monitoring device 100 of temperature spatial and temporal distributions matrix
Module 110, difference seek module 120, judgment module 130, variance computing module 140, comparison module 150,160 and of warning module
Preprocessing module 170.
The data acquisition module 110, for obtaining the reality of the multiple measuring points in testee periphery according to prefixed time interval
Border temperature change value, to generate the actual measurement spatial and temporal distributions matrix for characterizing temperature change.
In the present embodiment, the description as described in the data acquisition module 110 is specifically referred to step shown in Fig. 2
The detailed description of S110, that is, the step 110 can be executed by the data acquisition module 110.
The difference seeks module 120, for seeking the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix
Difference, as reference spatial and temporal distributions matrix.
In the present embodiment, the description as described in the difference seeks module 120 is specifically referred to step shown in Fig. 2
The detailed description of S120 executes that is, the step S120 can seek module 120 by the difference.
The judgment module 130, for judging whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix,
If not satisfied, then nearby there are liquid leakages for the corresponding measuring point of the matrix element.
In the present embodiment, the description as described in the judgment module 130 is specifically referred to step S130 shown in Fig. 2
Detailed description, that is, the step S130 can be executed by the judgment module 130.
The variance computing module 140, for calculating the variance of the theoretical spatial and temporal distributions matrix.
In the present embodiment, the description as described in the variance computing module 140 is specifically referred to step shown in Fig. 2
The detailed description of S140, that is, the step S140 can be executed by the variance computing module 140.
The comparison module 150, it is described with reference to each of spatial and temporal distributions matrix reference element for being directed to, by the ginseng
Element is examined to be compared with the variance.
In the present embodiment, the description as described in the comparison module 150 is specifically referred to step S150 shown in Fig. 2
Detailed description, that is, the step S150 can be executed by the comparison module 150.
The warning module 160 judges whether the reference element is located at first threshold section with according to comparison result, if position
In then generating warning information, and the warning information is sent to engineering management terminal.
In the present embodiment, the description as described in the warning module 160 is specifically referred to step S160 shown in Fig. 2
Detailed description, that is, the step S160 can be executed by the warning module 160.Specifically, as shown in fig. 6, the early warning
Module 160 includes judging unit 162 and prewarning unit 164.
The judging unit 162, for judging whether the reference element is located at the multiple threshold value subinterval, if position
In the threshold value subinterval being then located to the reference element is marked.
In the present embodiment, the description as described in the judging unit 162 is specifically referred to step S162 shown in Fig. 3
Detailed description, that is, the step S162 can be executed by the judging unit 162.
The prewarning unit 164, for calling early warning sub-information corresponding with labeled threshold value subinterval, and this is pre-
Alert sub-information is sent to the engineering management terminal.
In the present embodiment, about the prewarning unit 164, description specifically refer to step S164 shown in Fig. 3
Detailed description, that is, the step S164 can be executed by the prewarning unit 164.
In conclusion the leakage monitoring method and device provided by the invention based on temperature spatial and temporal distributions matrix, pass through by
The temperature value of actual measurement forms actual measurement spatial and temporal distributions matrix, and the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix are carried out
It asks poor, and then obtains whether testee occurs the leakage such as liquid, effective monitoring and management with realization to engineering project avoid
Natural calamity caused by leakage phenomenon occurs.
In addition, the present invention can also carry out early warning according to leakage scenarios, the validity of project monitor and control, and the party are further increased
Method is simple, and it is convenient to realize.
In the description of the present invention, term " setting ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixed
Connection, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly
It is connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In several embodiments provided by the embodiment of the present invention, it should be understood that disclosed device and method, it can also
To realize by other means.Device and method embodiment described above is only schematical, for example, the stream in attached drawing
Journey figure and block diagram show that the device of preset quantity embodiment according to the present invention, method and computer program product may be real
Existing architecture, function and operation.In this regard, each box in flowchart or block diagram can represent module, a journey
A part of sequence section or code.A part of the module, section or code include one or preset quantity for realizing
Defined logic function.
It should also be noted that function marked in the box can also be with difference in some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can also execute in the opposite order, this depends on the function involved.It is also noted that in block diagram and or flow chart
The combination of box in each box and block diagram and or flow chart, can function or movement as defined in executing it is dedicated
Hardware based system is realized, or can be realized using a combination of dedicated hardware and computer instructions.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of leakage monitoring method based on temperature spatial and temporal distributions matrix characterized by comprising
The actual temperature change value of the multiple measuring points in testee periphery is obtained, according to prefixed time interval to generate for characterizing temperature
Spend the actual measurement spatial and temporal distributions matrix of variation；
The difference for seeking the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, as reference spatial and temporal distributions matrix；
Judge whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if not satisfied, the then matrix element pair
Nearby there are liquid leakages for the measuring point answered；
Calculate the variance of the theoretical spatial and temporal distributions matrix；
For described with reference to each of spatial and temporal distributions matrix reference element, the reference element and the variance are compared
Compared with；
Judge whether the reference element is located at first threshold section according to comparison result, if being located at, generates warning information, and will
The warning information is sent to engineering management terminal.
2. the leakage monitoring method according to claim 1 based on temperature spatial and temporal distributions matrix, which is characterized in that described
First threshold section includes multiple threshold value subintervals, and the warning information includes corresponding with multiple threshold value subinterval multiple pre-
Alert sub-information；
Judge whether the reference element is located at first threshold section, if the step of being located at, generating warning information includes:
Judge whether the reference element is located at the multiple threshold value subinterval, if being located at, the reference element is located at
Threshold value subinterval be marked；
Early warning sub-information corresponding with labeled threshold value subinterval is called, and the early warning sub-information is sent to the engineering pipe
Manage terminal.
3. the leakage monitoring method according to claim 1 based on temperature spatial and temporal distributions matrix, which is characterized in that if should
The corresponding measuring point of matrix element nearby there are liquid leakage, the method also includes:
For described with reference to each of spatial and temporal distributions matrix reference element, by the reference element and the theoretical spatial and temporal distributions
The theoretical elemental of corresponding position is compared in matrix；
Judge whether the reference element is located at second threshold section, if being located at, generate warning information, and by the warning information
It is sent to engineering management terminal.
4. the leakage monitoring method according to claim 1 based on temperature spatial and temporal distributions matrix, which is characterized in that described
Theoretical spatial and temporal distributions matrix is used to characterize the theoretical value of the temperature change on testee periphery, and the theory spatial and temporal distributions matrix is
In the case where testee periphery does not leak, it is calculated according to heat transfer theory and soil layer thermal parameters.
5. the leakage monitoring method according to claim 1 based on temperature spatial and temporal distributions matrix, which is characterized in that described
Surveying spatial and temporal distributions matrix and the theoretical spatial and temporal distributions matrix is calculated under the background of thermal pulse method.
6. a kind of leakage monitoring device based on temperature spatial and temporal distributions matrix characterized by comprising
Data acquisition module, for obtaining the actual temperature change of the multiple measuring points in testee periphery according to prefixed time interval
Value, to generate the actual measurement spatial and temporal distributions matrix for characterizing temperature change；
Difference seeks module, for seeking the difference of the actual measurement spatial and temporal distributions matrix and theoretical spatial and temporal distributions matrix, as ginseng
Examine spatial and temporal distributions matrix；
Judgment module, for judging whether this meets preset value with reference to the matrix element in spatial and temporal distributions matrix, if not satisfied, then
Nearby there are liquid leakages for the corresponding measuring point of the matrix element；
Variance computing module, for calculating the variance of the theoretical spatial and temporal distributions matrix；
Comparison module, it is described with reference to each of spatial and temporal distributions matrix reference element for being directed to, by the reference element and institute
Variance is stated to be compared；
Warning module, if being located at, is generated for judging whether the reference element is located at first threshold section according to comparison result
Warning information, and the warning information is sent to engineering management terminal.
7. the leakage monitoring device according to claim 6 based on temperature spatial and temporal distributions matrix, which is characterized in that described
First threshold section includes multiple threshold value subintervals, and the warning information includes corresponding with multiple threshold value subinterval multiple pre-
Alert sub-information, the warning module include:
Judging unit, for judging whether the reference element is located at the multiple threshold value subinterval, if being located at, to the ginseng
The threshold value subinterval that element is located at is examined to be marked；
Prewarning unit is sent out for calling early warning sub-information corresponding with labeled threshold value subinterval, and by the early warning sub-information
Give the engineering management terminal.
8. the leakage monitoring device according to claim 6 based on temperature spatial and temporal distributions matrix, which is characterized in that described
Device further includes preprocessing module, and the preprocessing module is used in the case where testee periphery does not leak, according to
Heat transfer theory and soil layer thermal parameters calculate the theoretical spatial and temporal distributions matrix.
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