CN106870958B - A kind of detection of water pressure condition and transfer method and its realization device - Google Patents
A kind of detection of water pressure condition and transfer method and its realization device Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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Abstract
The present invention provides a kind of detection of water pressure condition and transfer method and its realization device, and the water pressure condition detection and transfer method comprise determining that the closing threshold value P of hydraulic pressure decision thresholdmax, and the threshold value P that discharges watermin；Water pressure data is filtered, data P to be compared is obtained；By data P to be compared and close threshold value PmaxIt is compared operation, and water pressure condition judgement and transfer, and the activation notification function of corresponding event are carried out according to comparison result.The water pressure condition detection and transfer method and its realization device through the invention, solve the problems, such as in the prior art without effective water supply network leak water detdction and warning device and method.
Description
Technical field
The present invention relates to digital processing field, more particularly to a kind of detection of water pressure condition and transfer method and its realization
Device.
Background technique
Water supply network is the pipe-line system in water supply project to user's water delivery and water distribution, by pipeline, accessory and affiliated facility
Composition.It from water supply point (water head site or water supply treatment plant) to the pipeline of pipe network, generally supplies water not directly to user, plays water delivery and make
With referred to as water-supply-pipe；Play water delivery simultaneously in pipe network and the pipeline of water distribution is known as main pipe；It separates from main pipe to user's water supply
Pipe diameter is 100 or 150 millimeters, plays water distribution, referred to as branch pipe；From referred to as user's branch of main pipe or branch pipe connecting subscribers participating
It manages, setting up on pipe has water meter to record user's water consumption.
Existing water supply network is usually the closing for being embedded in underground, the connecting pipe of circulation, pressure-bearing, but due to pipeline year
Often there is drainage in the interference of in bad repair long or other hidden pipeline constructions, water supply network, this is in addition to influencing normal production life
It is living outer, can also great lot of water resources be made to waste.According to statistics, the average leak rate of each public supply mains in China exists at present
20% or more, this is an immeasurable water resource waste, especially for the area that water resource is relatively in short supply, saves water money
Source is particularly important.Therefore, whether discovery water supply network leaks in time, and takes and remedy scheme control pipe network accordingly
It is imperative with rational utilization of water resources to reinforce water facilities management for leakage loss.
In consideration of it, it is necessary to design a kind of new water pressure condition detection and transfer method and its realization device to solve on
State technical problem.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of detection of water pressure condition and transfers
Method and its realization device, for solving in the prior art without effective water supply network leak water detdction and warning device and method
The problem of.
In order to achieve the above objects and other related objects, the present invention provides a kind of detection of water pressure condition and transfer method, institute
It states water pressure condition detection and transfer method includes:
1) the closing threshold value P of hydraulic pressure decision threshold is determinedmax, and the threshold value P that discharges watermin；
2) water pressure data is filtered, obtains data P to be compared；
3) by data P to be compared and closing threshold value PmaxIt is compared, if data P to be compared, which is greater than, closes threshold value
Pmax, determine that water pressure condition is in off state at this time, and skip to 4)；Otherwise, it skips to 5)；
4) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is kept not
Become；Otherwise, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice；
5) by data P to be compared and the threshold value P that discharges waterminIt is compared, if data P to be compared is greater than the threshold value that discharges water
Pmin, determine that water pressure condition is leak condition at this time, and skip to 6)；Otherwise, it is determined that water pressure condition is the state that discharges water at this time, and jump
To 7)；
6) whether the water pressure condition for judging previous moment is leak condition, and if leak condition, then water pressure condition is kept not
Become；Otherwise, water pressure condition is leak condition by the state transfer of previous moment, and generates incident of leakage notice；
7) whether the water pressure condition for judging previous moment is the state of discharging water, and if the state of discharging water, then water pressure condition is kept not
Become；Otherwise, water pressure condition is the state that discharges water by the state transfer of previous moment, and generates the event notice that discharges water.
Preferably, it is determined in 1) and closes threshold value PmaxAnd the threshold value P that discharges waterminMethod include: opened with tap it is pre-
If water pressure data collected is training sequence when angle, counts each pressure value probability of occurrence and added up to obtain the closing
Threshold value PmaxWith the threshold value P that discharges watermin。
Preferably, the predetermined angle is more than or equal to 5 degree, is less than or equal to 15 degree.
Preferably, the predetermined angle is 10 degree, the closing threshold value Pmax=0.478Mpa, the threshold value that discharges water
Pmin=0.378Mpa.
Preferably, include: to the method that water pressure data is filtered in 2)
2.1) data processing width is set；
2.2) according to the data processing width of setting, average value operation is carried out to water pressure data.
Preferably, average value operation is carried out to water pressure data using moving average filter algorithm, formula is as follows:
Wherein, y (tn) it is n-th of the measured value obtained by N number of sampled value, x (ti) be
Ith sample value, N are sliding window length.
Preferably, the water pressure condition further includes superpressure state and low-pressure state.
Preferably, the water pressure condition detection and transfer method further include:
8) superpressure threshold value and low pressure threshold value are determined；
9) data P to be compared is compared with superpressure threshold value, if data P to be compared is greater than superpressure threshold value, is determined
Water pressure condition is superpressure state at this time, and is skipped to 10)；Otherwise, it skips to 11)；
10) whether the water pressure condition for judging previous moment is superpressure state, and if superpressure state, then water pressure condition is kept not
Become；Otherwise, water pressure condition is superpressure state by the state transfer of previous moment, and generates overpressure events notice；
11) data P to be compared is compared with low pressure threshold value, if data P to be compared is less than low pressure threshold value, is determined
Water pressure condition is low-pressure state at this time, and is skipped to 12)；Otherwise, it is determined that water pressure condition is in off state at this time, and skip to 13)；
12) whether the water pressure condition for judging previous moment is low-pressure state, and if low-pressure state, then water pressure condition is kept not
Become；Otherwise, water pressure condition is low-pressure state by the state transfer of previous moment, and generates low pressure events notice；
13) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is kept not
Become；Otherwise, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice.
The realization device of water pressure condition detection that the present invention also provides a kind of as described in any of the above-described and transfer method, it is described
Realization device includes:
Data processing unit, for being filtered, obtaining data P to be compared and being transmitted to water pressure data；
Cache unit is connect with the data processing unit, for storing the to be compared of the data processing unit transmission
Data P, setting closing threshold value PmaxWith the threshold value P that discharges waterminAnd previous moment water pressure condition and transmitted；
Comparing unit is connect with the cache unit, is used for the data P to be compared and the closing threshold value Pmax
With the threshold value P that discharges waterminIt is compared, and comparison result is transmitted；And
State judgement and transfer switch unit, connect, for according to comparing respectively with the comparing unit and cache unit
As a result current water pressure condition judgement is carried out, and by comparing current water pressure condition and the previous moment of cache unit offer
Water pressure condition carries out water pressure condition transfer switching, and current water pressure condition is transferred to the cache unit and is stored.
Preferably, the cache unit is also stored with superpressure threshold value and low pressure threshold value.
Preferably, the comparing unit also carries out data P to be compared compared with superpressure threshold value and low pressure threshold value, and
Transmit comparison result.
As described above, a kind of water pressure condition detection of the invention and transfer method and its realization device, have beneficial below
Effect:
1. the method and device can effectively monitor the water pressure condition of water supply network through the invention, discovery is supplied water in time
The leakage of pipe network reduces the waste of water resource convenient for adopting remedial measures.
2. the method for the invention obtains multiple hydraulic pressure decision threshold values by training, and by filtering to water pressure data
Wave and also achieves the activation notification of corresponding event, has reached alarm function so that water pressure condition detection and shifting more accurate
Energy.
3. the present invention enormously simplifies water pressure condition transfer deterministic process, only need progress (M+1) secondary comparison operation can be real
Existing water pressure condition judgement and transfer, greatly reduce computation complexity, wherein M is water pressure condition number.
Detailed description of the invention
Fig. 1 is shown as the flow chart of water pressure condition transfer method of the present invention.
Fig. 2 is shown as the system block diagram of realization device of the present invention.
Component label instructions
1 data processing unit
2 cache units
3 comparing units
The judgement of 4 states and transfer switch unit
1)~13) step
2.1)~2.2) step
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Please refer to Fig. 1 and Fig. 2.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.
Embodiment one
As shown in Figure 1, the water pressure condition detects and turns the present embodiment provides a kind of detection of water pressure condition and transfer method
Shifting method includes:
1) the closing threshold value P of hydraulic pressure decision threshold is determinedmax, and the threshold value P that discharges watermin；
2) water pressure data is filtered, obtains data P to be compared；
3) by data P to be compared and closing threshold value PmaxIt is compared, if data P to be compared, which is greater than, closes threshold value
Pmax, determine that water pressure condition is in off state at this time, and skip to 4)；Otherwise, it skips to 5)；
4) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is kept not
Become；Otherwise, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice；
5) by data P to be compared and the threshold value P that discharges waterminIt is compared, if data P to be compared is greater than the threshold value that discharges water
Pmin, determine that water pressure condition is leak condition at this time, and skip to 6)；Otherwise, it is determined that water pressure condition is the state that discharges water at this time, and jump
To 7)；
6) whether the water pressure condition for judging previous moment is leak condition, and if leak condition, then water pressure condition is kept not
Become；Otherwise, water pressure condition is leak condition by the state transfer of previous moment, and generates incident of leakage notice；
7) whether the water pressure condition for judging previous moment is the state of discharging water, and if the state of discharging water, then water pressure condition is kept not
Become；Otherwise, water pressure condition is the state that discharges water by the state transfer of previous moment, and generates the event notice that discharges water.
Threshold value P is closed specifically, 1) determine inmaxAnd the threshold value P that discharges waterminMethod include: opened with tap it is pre-
If water pressure data collected is training sequence when angle, counts each pressure value probability of occurrence and added up to obtain the closing
Threshold value PmaxWith the threshold value P that discharges watermin。
Preferably, the predetermined angle is more than or equal to 5 degree, is less than or equal to 15 degree；It is further preferred that in the present embodiment
In, the predetermined angle is 10 degree, the closing threshold value Pmax=0.478Mpa, the threshold value P that discharges watermin=
0.378Mpa。
Specifically, 2) include: to the method that water pressure data is filtered in
2.1) data processing width is set；
2.2) according to the data processing width of setting, average value operation is carried out to water pressure data.
Preferably, average value operation is carried out to water pressure data using moving average filter algorithm in 2.2), formula is as follows:
Wherein, y (tn) it is n-th of the measured value obtained by N number of sampled value, x (ti) be
Ith sample value, N are sliding window length.
It should be noted that the data processing width is equal to the sliding window length N.
It should be noted that the moving average filter algorithm is that N number of sampled value is regarded as to a queue, it is every to carry out once
New data is just put into tail of the queue by sampling, and original head of the queue dequeuing data, has N number of latest data always in guarantee queue, in this way
Take the arithmetic mean of instantaneous value of this N number of data as this measured value, it is highly effective to random interfering signal is filtered out, but also have compared with
High real-time can more accurately judge the water pressure condition of water supply network.
Specifically, the water pressure condition further includes superpressure state and low-pressure state.
It should be noted that hydraulic pressure when due to the closed state is normal pressure, therefore sentence carrying out superpressure, normal pressure and low pressure
When disconnected, when the hydraulic pressure is normal pressure, the water pressure condition is in off state at this time.
Preferably, the water pressure condition detection and transfer method further include:
8) superpressure threshold value and low pressure threshold value are determined；
9) data P to be compared is compared with superpressure threshold value, if data P to be compared is greater than superpressure threshold value, is determined
Water pressure condition is superpressure state at this time, and is skipped to 10)；Otherwise, it skips to 11)；
10) whether the water pressure condition for judging previous moment is superpressure state, and if superpressure state, then water pressure condition is kept not
Become；Otherwise, water pressure condition is superpressure state by the state transfer of previous moment, and generates overpressure events notice；
11) data P to be compared is compared with low pressure threshold value, if data P to be compared is less than low pressure threshold value, is determined
Water pressure condition is low-pressure state at this time, and is skipped to 12)；Otherwise, it is determined that water pressure condition is in off state at this time, and skip to 13)；
12) whether the water pressure condition for judging previous moment is low-pressure state, and if low-pressure state, then water pressure condition is kept not
Become；Otherwise, water pressure condition is low-pressure state by the state transfer of previous moment, and generates low pressure events notice；
13) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is kept not
Become；Otherwise, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice.
It should be noted that comparison operation number is related to the water pressure condition number M of detection, the method through the invention
When carrying out water pressure condition detection with transfer, comparison operation number=water pressure condition number M+1 greatly reduces computational complexity.
Embodiment two
As shown in Fig. 2, the present embodiment provides a kind of as described in embodiment one water pressure condition detection and the realization of transfer method
Device, the realization device include:
Data processing unit 1, for being filtered, obtaining data P to be compared and being transmitted to water pressure data；
Cache unit 2 is connect with the data processing unit 1, for store that the data processing unit 1 sends to than
Compared with data P, the closing threshold value P of settingmaxWith the threshold value P that discharges waterminAnd previous moment water pressure condition and transmitted；
Comparing unit 3 is connect with the cache unit 2, is used for the data P to be compared and the closing threshold value
PmaxWith the threshold value P that discharges waterminIt is compared, and comparison result is transmitted；And
State judgement with transfer switch unit 4, connect respectively with the comparing unit 3 and cache unit 2, be used for according to than
Relatively result carries out current water pressure condition judgement, and by comparing current water pressure condition and the cache unit 2 provide it is previous when
The water pressure condition at quarter carries out water pressure condition transfer switching, and current water pressure condition is transferred to the cache unit 2 and is deposited
Storage.
Specifically, the cache unit 2 is also stored with superpressure threshold value and low pressure threshold value.
It should be noted that when carry out superpressure, normal pressure and low pressure judges when, also need to be arranged corresponding superpressure threshold value with
Low pressure threshold value is compared operation and water pressure condition judgement and transfer.
Preferably, the comparing unit 3 also carries out data P to be compared compared with superpressure threshold value and low pressure threshold value,
And transmit comparison result；The state judgement carries out water pressure condition judgement also according to comparison result with transfer switch unit 4 and turns
It moves.
In conclusion a kind of water pressure condition detection of the invention and transfer method and its realization device, have beneficial below
Effect:
1. the method and device can effectively monitor the water pressure condition of water supply network through the invention, discovery is supplied water in time
The leakage of pipe network reduces the waste of water resource convenient for adopting remedial measures.
2. the method for the invention obtains multiple hydraulic pressure decision threshold values by training, and by filtering to water pressure data
Wave and also achieves the activation notification of corresponding event, has reached alarm function so that water pressure condition detection and shifting more accurate
Energy.
3. the present invention enormously simplifies water pressure condition transfer deterministic process, only need progress (M+1) secondary comparison operation can be real
Existing water pressure condition judgement and transfer, greatly reduce computation complexity, wherein M is water pressure condition number.
So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of water pressure condition detection and transfer method, which is characterized in that the water pressure condition detection and transfer method include:
1) the closing threshold value P of hydraulic pressure decision threshold is determinedmax, and the threshold value P that discharges watermin；It wherein determines and closes threshold value PmaxAnd
The threshold value that discharges water PminMethod include: that water pressure data collected is training sequence when opening predetermined angle using tap, statistics
Each pressure value probability of occurrence simultaneously is added up to obtain the closing threshold value PmaxWith the threshold value P that discharges watermin；
2) water pressure data is filtered, obtains data P to be compared；
3) by data P to be compared and closing threshold value PmaxIt is compared, if data P to be compared, which is greater than, closes threshold value Pmax, sentence
Fixed water pressure condition at this time is in off state, and is skipped to 4)；Otherwise, it skips to 5)；
4) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is remained unchanged；It is no
Then, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice；
5) by data P to be compared and the threshold value P that discharges waterminIt is compared, if data P to be compared is greater than the threshold value P that discharges watermin, sentence
Fixed water pressure condition at this time is leak condition, and is skipped to 6)；Otherwise, it is determined that water pressure condition is the state that discharges water at this time, and skip to 7)；
6) whether the water pressure condition for judging previous moment is leak condition, and if leak condition, then water pressure condition remains unchanged；It is no
Then, water pressure condition is leak condition by the state transfer of previous moment, and generates incident of leakage notice；
7) whether the water pressure condition for judging previous moment is the state of discharging water, and if the state of discharging water, then water pressure condition remains unchanged；It is no
Then, water pressure condition is the state that discharges water by the state transfer of previous moment, and generates the event notice that discharges water.
2. water pressure condition according to claim 1 detection and transfer method, which is characterized in that the predetermined angle is greater than etc.
In 5 degree, it is less than or equal to 15 degree.
3. water pressure condition detection according to claim 2 and transfer method, which is characterized in that the predetermined angle is 10
Degree, the closing threshold value Pmax=0.478Mpa, the threshold value P that discharges watermin=0.378Mpa.
4. water pressure condition detection according to claim 1 and transfer method, which is characterized in that 2) carried out in water pressure data
The method of filtering processing includes:
2.1) data processing width is set；
2.2) according to the data processing width of setting, average value operation is carried out to water pressure data.
5. water pressure condition detection according to claim 4 and transfer method, which is characterized in that calculated using moving average filter
Method carries out average value operation to water pressure data, and formula is as follows:
Wherein, y (tn) it is n-th of the measured value obtained by N number of sampled value, x (ti) it is i-th
Sampled value, N are sliding window length.
6. water pressure condition according to claim 1 detection and transfer method, which is characterized in that the water pressure condition further includes
Superpressure state and low-pressure state.
7. water pressure condition according to claim 6 detection and transfer method, which is characterized in that the water pressure condition detection and
Transfer method further include:
8) superpressure threshold value and low pressure threshold value are determined；
9) data P to be compared is compared with superpressure threshold value, if data P to be compared is greater than superpressure threshold value, is determined at this time
Water pressure condition is superpressure state, and is skipped to 10)；Otherwise, it skips to 11)；
10) whether the water pressure condition for judging previous moment is superpressure state, and if superpressure state, then water pressure condition remains unchanged；
Otherwise, water pressure condition is superpressure state by the state transfer of previous moment, and generates overpressure events notice；
11) data P to be compared is compared with low pressure threshold value, if data P to be compared is less than low pressure threshold value, is determined at this time
Water pressure condition is low-pressure state, and is skipped to 12)；Otherwise, it is determined that water pressure condition is in off state at this time, and skip to 13)；
12) whether the water pressure condition for judging previous moment is low-pressure state, and if low-pressure state, then water pressure condition remains unchanged；
Otherwise, water pressure condition is low-pressure state by the state transfer of previous moment, and generates low pressure events notice；
13) judge whether the water pressure condition of previous moment is in off state, if being in off state, water pressure condition is remained unchanged；
Otherwise, water pressure condition is in off state by the state transfer of previous moment, and generates close event notice.
8. the realization device of a kind of detection of the water pressure condition as described in any one of claim 1~7 and transfer method, feature exists
In the realization device includes:
Data processing unit, for being filtered, obtaining data P to be compared and being transmitted to water pressure data；
Cache unit is connect with the data processing unit, the data to be compared sent for storing the data processing unit
P, the closing threshold value P of settingmaxWith the threshold value P that discharges waterminAnd previous moment water pressure condition and transmitted；
Comparing unit is connect with the cache unit, is used for the data P to be compared and the closing threshold value PmaxWith put
Water valve limit value PminIt is compared, and comparison result is transmitted；And
State judgement and transfer switch unit, connect, for according to comparison result respectively with the comparing unit and cache unit
Current water pressure condition judgement, and the hydraulic pressure of the previous moment provided by comparing current water pressure condition and the cache unit are provided
State carries out water pressure condition transfer switching, and current water pressure condition is transferred to the cache unit and is stored.
9. realization device according to claim 8, which is characterized in that the cache unit is also stored with superpressure threshold value and low
Pressure gate limit value.
10. realization device according to claim 9, which is characterized in that the comparing unit also carries out data P to be compared and surpasses
The comparison of pressure gate limit value and low pressure threshold value, and transmit comparison result.
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| CN113144494A (en) * | 2021-03-25 | 2021-07-23 | 杭州智缤科技有限公司 | Intelligent water pressure detection system capable of detecting water discharge of fire hydrant |
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| CN201885856U (en) * | 2010-12-21 | 2011-06-29 | 中国船舶重工集团公司第七�三研究所 | Leakage monitoring system for ship fire-fighting valve |
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