AU2020103080A4 - A monitoring operation system and method for secondary water supply system - Google Patents
A monitoring operation system and method for secondary water supply system Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010586 diagram Methods 0.000 claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 238000012549 training Methods 0.000 claims description 9
- 230000006870 function Effects 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 6
- 238000003379 elimination reaction Methods 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/206—Measuring pressure, force or momentum of a fluid flow which is forced to change its direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L15/00—Devices or apparatus for measuring two or more fluid pressure values simultaneously
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
- E03B5/02—Use of pumping plants or installations; Layouts thereof arranged in buildings
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N52/00—Hall-effect devices
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- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
This disclosure relates to a monitoring operation system and method for a secondary water supply
system, which can realize pressure regulating water supply to different floors by controlling the
rotating speed of an integrated servo motor. To achieve this, the present invention discloses a
monitoring operation system of a secondary water supply system, which comprises a water storage
tank, a water pump, an accumulator and a monitoring and operation device. Wherein, the water
storage tank, water pump and accumulator are sequentially communicated with each other through
a water pipe. There is a first pressure sensor arranged on the water storage tank, a second pressure
sensor and a flow sensor arranged at the outlet of the accumulator, and a Hall sensor arranged on
the integrated servo motor of the water pump. The first pressure sensor, the second pressure
sensor, the flow sensor and the Hall sensor are all connected with a monitoring and operation
device, which is connected with the integrated servo motor through an integrated servo motor
controller and at the same time it is also connected with an industrial touch screen.
-1/5
10
11 12
53 DO
9
3 6
51 4
water pipe
Fig. 1
A schematic diagram of the present invention
Description
-1/5
10
11 12 53 DO
9 3 6
51 4 water pipe
Fig. 1
A schematic diagram of the present invention
PATENTS ACT 1990
A monitoring operation system and method for secondary water supply system
The invention is described in the following statement:-
A monitoring operation system and method for secondary water supply system
The invention belongs to the technical field of secondary water supply, and particularly
relates to a monitoring operation system and method of a secondary water supply system.
With the increasing number of high-rise buildings, secondary water supply equipment
will also be widely used. At present, the secondary water supply equipment in China can
be divided into two categories. The first category is to pump water directly from the pool
or water tank; the second one is to supply water direct instead of using pools and tanks.
Because the water tank or pool in the use process will cause water pollution and
deterioration, direct water supply method is widely used in the market. Moreover, without
water tank or pool, the direct water supply method has small covering area and simple
structure. However, in the process of supplying water to high-rise buildings, many
secondary water supply equipment can only use constant pressure water supply, that is to
adjust the motor speed by converter to ensure the constant pressure at the outlet of the
secondary water supply equipment. Due to different water supply heights, different floors
require different water pressures, however, the existing secondary water supply
equipment cannot realize intelligent pressure-regulating water supply to different floors.
At the same time, most of the control devices of secondary water supply equipment are
controlled by industrial touch screen, through which technicians can manually set
relevant parameters of secondary water supply system and monitor the secondary water supply equipment in real time, but the input mode of control command is single and not intelligent enough.
The invention provides a monitoring operation system and method for a secondary water
supply system, which can realize pressure regulating water supply to different floors by
controlling the rotating speed of an integrated servo motor.
In view of the single input mode of control commands mentioned in the background art,
the invention adds a voice input mode of control commands based on the existing
technology of manually inputting control commands through an industrial touch screen,
so that the control device of secondary water supply equipment is more intelligent, and it
is convenient for technicians to control and operate the secondary water supply
equipment.
To achieve the above purpose, the present invention provides the following scheme:
The invention discloses a monitoring operation system of a secondary water supply
system, which comprises a water storage tank, a water pump, an accumulator and a
monitoring and operation device. Wherein, the water storage tank, water pump and
accumulator are sequentially communicated with each other through a water pipe. There
is a first pressure sensor arranged on the water storage tank, a second pressure sensor and
a flow sensor arranged at the outlet of the accumulator, and a Hall sensor arranged on the
integrated servo motor of the water pump. The first pressure sensor, the second pressure
sensor, the flow sensor and the Hall sensor are all connected with a monitoring and
operation device, which is connected with the integrated servo motor through an integrated servo motor controller and at the same time it is also connected with an industrial touch screen.
The water storage tank comprises four chambers- a water disinfection chamber, a
negative pressure elimination chamber, a water quality analysis chamber and a pressure
stabilizing compensation chamber. Through the four-cavity water supply unit, the
invention can achieve the purpose of integrating the functions of secondary
pressurization, water disinfection, water quality analysis, negative pressure elimination,
pressure and flow stabilization and compensation and the like together.
The water pump adopts any one of centrifugal pump, mixed flow pump, axial flow pump
and regenerative pump.
The accumulator adopts an air bag type accumulator.
The monitoring and operation device of the secondary water supply system also
comprises a voice control device consisting of a voice recognition module and an
industrial touch screen.
Connected with the industrial touch screen, the voice recognition module can output
different analog signals to the screen, and the corresponding communication address
related data is modified in cooperation with different analog signals, so that the related
parameters in the industrial touch screen can be set by voice, and achieve the function of
controlling the whole secondary water supply equipment by voice.
A monitoring operation method for secondary water supply system, characterized by
comprising the following steps:
6.1. monitor and calculate the height of water supply floor;
6.2 collect and process data to obtain data samples;
6.3 determine the control model structure;
6.4 initialize the control model;
6.5 input the data samples into the control model, and perform error calculation and
output result;
6.6 weight adjustment-correct the weight according to the error precision until the output
error E is less than the set error;
6.7. output the data after the weight adjustment.
In step 6.1, in the hydrodynamics calculation process, the friction loss is expressed as:
Ap I V" =h =A y ~ d 2g
wherein, Ap is the pressure loss from pump outlet to user end, y is water gravity, X is
frictional drag coefficient, 1is pipe length, d is pipe inner diameter, and vc is water flow
rate.
y=pg
0.3164 Re0 25
Re = vd V
wherein, Re is Reynolds number and v is kinematic viscosity.
The following formula can be obtained by calculation:
Ap 0.3164v0 25 1.75
y 2gd1 25 C
Q 2=VC 4
The following formula can be obtained by calculation:
Ap_ 0.3164x 4x v°' I1 y 2gd4 75 x "1.75
Ap bpv° 25IQ 75
wherein,
b 0.24143 d 47
p pgl+Ap
The height of the water supply floor can be obtained by following calculation:
= 7 5 pg +bpvo25Q1
In the step 6.2, normalizing the samples is to make the control model obtain the global
optimal solution when training, and it is necessary to normalize the collected data:
0.9-0.1 V +(0.9+ 0.9-0.1 X. mP - Xa X1, X_ - Xm
In the formula, P is the input sample and r" is the normalized sample.
In the step 6.3, there are 4 nodes in the first layer of the control model, 6 nodes in the
second layer, and 1 output.
In the step 6.4, the error E is taken as 0.001 and the learning efficiency q is taken as 0.5,
then carry out training for several times and randomly initialize the weights of the control
model.
E=- (d,-y,) In step 6.6, the error of the control model is 2k=1
The error of the second layer is
E= $1[d- 2k1 f (IWjkyi2 J=0
The error of the first layer is
1L E-= 2 K=1 {dk- f[ wkf(v~x,)]2 J=0 1=0
The weights from the second layer to the output are adjusted as follows:
Aw j, = q(d, - y, )y,( y, )y
The weights from the first layer to the second layer are adjusted as follows:
Av 1 r(6k 7 Wjk)YJ(1 - X k=1
In order to ensure the speed of the control model in the process of training, assume the
momentum coefficient as a in the process of weight adjustment, and the iterative formula
of weight adjustment is:
vij (t + 1)= v,,-j(t) - 77 1-E+ 8E aAv,,j(t)
(t + 1) =W t)- OE +aAw,(t). Owjk
When the calculation error E is less than the specification error c, that is, E < c, the
network proceeds to the next step; otherwise, return to step 5 until E < F is satisfied.
The invention discloses the following technical effects:
Calculate the floor height using water according to Bernoulli equation and utilize
accumulators to supplement the pressure and flow of water. Through monitoring and
calculating the pressure and flow signals at the outlet of accumulators, the pressure
signals of water storage tanks and the rotating speed of integrated servo motors, the
invention can realize intelligent pressure regulation for different floors, so as to overcome
the defect that the existing water supply system cannot regulate pressure to supply water
for floors with different heights.
Through a four-cavity water supply unit, the invention can integrate the functions of
secondary pressurization, water disinfection, water quality analysis, negative pressure
elimination, pressure and flow stabilization and compensation and the like together,
which provides basis and guarantee for realizing standardized and intelligent water
supply.
The invention can set relevant parameters in the industrial touch screen through the
cooperation of speech recognition module and industrial touch screen, there by achieving
voice control of secondary water supply equipment. Based on the existing technology of
manually inputting control command through industrial touch screen, the invention adds
voice input control command mode, which makes the control device of secondary water
supply equipment more intelligent, solves the problem of only single input mode, and
facilitates technical personnel to control the secondary water supply equipment.
In order to explain the embodiments of the present invention or the technical scheme in
the prior art more clearly, the figures needed in the embodiments will be briefly
introduced below. Obviously, the figures in the following description are only some embodiments of the present invention, and for ordinary technicians in the field, others can be obtained according to these figures without paying creative labour.
Figure 1 is a schematic diagram of the present invention, wherein 1 is an integrated servo
motor, 2 is a water pump, 3 is an accumulator, 4 is an accumulator safety valve group, 51
is a first electric valve, 52 is a second electric valve, 53 is a third electric valve, 6 is a
second pressure sensor, 7 is a flow sensor, 8 is a Hall sensor, 9 is a water storage tank, 10
is a first pressure sensor, 11 is an integrated servo motor controller, 12 is a monitoring
and operation device, 13 is a voice recognition module and 14 is an industrial touch
screen.
Figure 2 is a structural diagram of a water storage tank of the present invention.
Figure 3 is a control structure diagram of the present invention.
Figure 4 is a control principle block diagram of the present invention.
Figure 5 is a principle block diagram of the monitoring and operation device of the
present invention.
The technical scheme in the embodiments of the present invention will be described
clearly and completely with reference to the figures in the embodiments of the present
invention. Obviously, the described embodiments are only part of the embodiments of the
present invention, not all of them. Based on the embodiments of the present invention, all
other embodiments obtained by ordinary technicians in the field without creative labour
should belong to the protection scope of the present invention.
To achieve the above purpose, the present invention provides the following scheme:
As shown in Figs. 1 to 4, a secondary water supply system monitoring operation system
includes a water storage tank 9, a water pump 2, an accumulator 3 and a monitoring and
operation device 13. Wherein, the water storage tank 9, water pump 2 and accumulator 3
are sequentially communicated with each other through a water pipe. There is a first
pressure sensor 10 arranged on the water storage tank 3, a second pressure sensor 6 and a
flow sensor 7 arranged at the outlet of the accumulator 3, and a Hall sensor 8 arranged on
the integrated servo motor 1 of the water pump 2. The first pressure sensor 10, the second
pressure sensor 6, the flow sensor 7 and the Hall sensor 8 are all connected with a
monitoring and operation device 12, which is connected with the integrated servo motor 1
through an integrated servo motor controller 11 and at the same time it is also connected
with an industrial touch screen 14.
Furthermore, the water storage tank 9 comprises a water disinfection chamber, a negative
pressure elimination chamber, a water quality analysis chamber and a pressure stabilizing
compensation chamber.
Further, the water pump 2 adopts any one of centrifugal pump, mixed flow pump, axial
flow pump and regenerative pump.
Furthermore, an air bag type accumulator is preferred for the accumulator 3.
Further, the accumulator 3 is provided with a corresponding accumulator safety valve
group. There is a third electric valve 53 on the water inlet pipe of the water storage tank
9, and a first electric valve 51 and a second electric valve 52 on the water delivery pipe.
Open the third electric valve 53 and the municipal pipe network starts to supply water to
the water storage tank 9. Then open the second electric valve 52, the accumulator safety valve group 4 and the first electric valve 51, and then the integrated servo motor 1 drives the water pump 2 to work to supply water to the user.
In order to make the secondary water supply equipment more intelligent, the invention
adds the voice input mode of control commands based on manual input of control
commands on the existing touch screen, which solves the problem of single input mode
of control commands. Therefore, the technicians can input different analog signals to the
industrial touch screen by voice through the cooperation of the voice recognition module
13 and the industrial touch screen 14, and modify the relevant data of corresponding
communication addresses in cooperation with different analog signals, so as to realize the
voice setting of relevant parameters in the industrial touch screen and achieve the
function of controlling the whole secondary water supply equipment by voice.
When the user starts to use water, the water pressure and flow of supply system are
compensated by the accumulator 3 in a short time. At this time, the operation device 12
detects the compensation value of the pressure and flow at the accumulator 3 outlet and
calculates the floor height using water according to Bernoulli equation. And then it feeds
back the information to the integrated servo motor controller 11, which can adjust the
rotation speed of the integrated servo motor 1 to realize intelligent pressure regulation
control for different floors.
As shown in Fig. 5, the monitoring and operation device mainly consists of an analog-to
digital converter, a network controller, a PLC and a digital-to-analog converter. Wherein,
the analog-to-digital converter can convert the received sensor analog signals into digital
signals that can be processed by the network controller; PLC is to receive the signal sent
by the network controller, and send out instructions to control the open and close of each electric valve and the start and stop and rotating speed of the integrated servo motor; the digital-to-analog converter can converts the digital signal into an analog signal that can be received by the integrated servo motor controller.
In the process of supplying water to high-rise buildings, the pipe length is longer due to
the higher water supply height, so ignore local loss and take the friction loss as the main
calculation object. Besides, the change of water supply pipe diameter is not considered in
the calculation process as well.
Take accumulator outlet compensation pressure, accumulator outlet compensation flow,
water storage tank pressure and integrated servo motor speed as independent variables of
the control model and integrated servo motor speed as dependent variable. The pressure
sensor, the flow sensor and the Hall sensor process the monitored signals by the
monitoring and operation device and send them to the integrated servo motor controller.
Through the calculation of the model, the invention can control the speed of the
integrated servo motor.
The invention further comprises the following execution steps.
1)Monitor and calculate the height of water supply floor
In the hydrodynamics calculation process, the friction loss is expressed as:
Ap lv 2 = h= ° (1) y d 2g wherein, Ap is the pressure loss from pump outlet to user end, y is water gravity, X is frictional drag coefficient, 1 is pipe length, d is pipe inner diameter, and vc is water flow rate.
7 =P (2)
0.3164 eas (3) Re0 25
Re = v (4) V
wherein, Re is Reynolds number and v is kinematic viscosity.
Take formula (2), (3) and (4) into formula (1) to get formula (5)
Ap 0.3164v°2 5 1.75(
y 2gd1 25
Q= ° (6), 4
wherein, Q is pump outlet flow.
Bring formula (6) into formula (5) and get formula (7)
Ap_ 0.3164x 4xv0 25 17 IQ (7) 7 2gd 4 75 . x 1"
Ap bpvo. 2 5IQ. 75 (8),
wherein, b= 0.24143 d 47 p = pgl + Ap (9) wherein, p is pump outlet pressure.
The height of the floor using water can be obtained by bringing the formula (8) into the
formula (9),
p (10) pg +bpv0. Q
Because of the complex nonlinear and strong coupling problems between the output and
input parameters in the process of servo system execution, it is difficult to express them
by establishing an accurate mathematical model but adopting a multi-input control model
can solve this problem well. The independent variables of the control model include
water storage tank pressure Pi, accumulator outlet compensation pressure P 2, accumulator
outlet compensation flow Q and motor speed N, and the dependent variable of the model
is integrated servo motor speed No .
The control model can be expressed as:
y (t) f(net,) (1)
netk = WZkyi (12).
In the control model, the transfer function adopts unipolar Sigmoid function
1 f(t)= between the second-layer node j and the output node k, and netk is the net input after operation.
2) Data collocation
Normalizing the samples and it is necessary to normalize the collected data in order to
make the control model obtain the global optimal solution when training.
0.9-0.1 0.9-0.1 (13) r'x n ' mx+(0.9+ 3in
r Xi In the formula, P is the input sample and ' is the normalized sample.
3) Determine the control model structure. In the control model, there are 4 input
variables, 6 variables in the second layer and 1 control output. The input X and output Y
of the control model can be expressed by vectors respectively,
T X = (x,,x 2 ,._-,) (14) jy (y"Y2 ... _Y1 )T
X =(P,,P2 ,Q,N) T (15) tY =(0,0,0, N) T
wherein, xnis input value and yi is output value.
4) Initialize the control model. Take control error E as 0.001, the learning efficiency q as
0.5 and the training times as 400 and initialize the weights of the control model randomly.
) Calculate and control output result. Input the data samples into the control model, and
calculate output result and the error E.
6) Weight adjustment. Correct the weight according to the error precision until the output
error E is less than the set error. When the output is not equal to the expected output, the
error of the control model can be expressed as follows:
E= I(d, - y,) 2 (16) 2
The error expression of the second layer is:
1I d-f ~ yi)]2 E = Y[d, - f( W 2(17)
The error expression of the first layer is:
1 L in n E -= {d,- f[_w v,x, Vf( }2 (18). 2 K=1 j=0 i=0
In the formula, Vij is the first layer weight, dk is the kth expected output, yK is the kth
actual output.
The following partial derivatives can be obtained from the above formulas.
0E 0E a0net. (19) avi anet. av(1
OE OE anet awjk anetkaw(20).
OE (V E Let 'nI = , - ,sothat onet, any,
Aw1)d--kys -ysy (21)
Avi =17( W, jG - y )X, (22)
In order to ensure the speed of the control model in the process of training, assume the
momentum coefficient as a in the process of weight adjustment, and the iterative formula
of weight adjustment is:
8E vil.(t +1 =il v(t ) -7 -E+ aAv,( (23) av1
OE w1.4(t +1) =w,(t)-r +aAwj,(t) (24)
When the calculation error E is less than the specification error , that is, E < , the
network proceeds to the next step; otherwise, return to step 5 until E < F is satisfied.
7) Output the data after the weight adjustment.
The above shows and describes the basic principles, main features and advantages of the
present invention. It should be understood by those skilled in the art that the present
invention is not limited by the above embodiments since the above embodiments and
descriptions only illustrate the principles of the present invention. Without departing from
the spirit and scope of the present invention, there will be various changes and
improvements in the present invention, all of which fall within the scope of the claimed
invention. The claim scope of this present invention is defined by the append claims and
their equivalents.
Claims (10)
1. A monitoring operation system for secondary water supply system, comprising a water
storage tank, a water pump, an accumulator and a monitoring and operation device.
Wherein, the water storage tank, water pump and accumulator are sequentially
communicated with each other through a water pipe. There is a first pressure sensor
arranged on the water storage tank, a second pressure sensor and a flow sensor arranged
at the outlet of the accumulator, and a Hall sensor arranged on the integrated servo motor
of the water pump. The first pressure sensor, the second pressure sensor, the flow sensor
and the Hall sensor are all connected with a monitoring and operation device, which is
connected with the integrated servo motor through an integrated servo motor controller
and at the same time it is also connected with an industrial touch screen.
2. The monitoring operation system for secondary water supply system according to
claim 1, characterized in that the water storage tank comprises four chambers- a water
disinfection chamber, a negative pressure elimination chamber, a water quality analysis
chamber and a pressure stabilizing compensation chamber. Through the four-cavity water
supply unit, the invention can achieve the purpose of integrating the functions of
secondary pressurization, water disinfection, water quality analysis, negative pressure
elimination, pressure and flow stabilization and compensation and the like together.
3. The monitoring operation system for secondary water supply system according to
claim 1, characterized in that the water pump adopts any one of centrifugal pump, mixed
flow pump, axial flow pump and regenerative pump.
4. The monitoring operation system for secondary water supply system according to
claim 1, characterized in that the accumulator adopts an air bag type accumulator.
5. The monitoring operation system for secondary water supply system according to
claim 1, characterized in that the monitoring and operation device of the secondary water
supply system also comprises a voice control device consisting of a voice recognition
module and an industrial touch screen.
Connected with the industrial touch screen, the voice recognition module can output
different analog signals to the screen, and the corresponding communication address
related data is modified in cooperation with different analog signals, so that the related
parameters in the industrial touch screen can be set by voice, and achieve the function of
controlling the whole secondary water supply equipment by voice.
6. A monitoring operation method for secondary water supply system, characterized by
comprising the following steps:
6.1. monitor and calculate the height of water supply floor;
6.2 collect and process data to obtain data samples;
6.3 determine the control model structure;
6.4 initialize the control model;
6.5 input the data samples into the control model, and perform error calculation and
output result;
6.6 weight adjustment-correct the weight according to the error precision until the output
error E is less than the set error;
6.7. output the data after the weight adjustment.
7. The secondary water supply system monitoring operation method according to claim 6,
characterized in that in step 6.1, in the hydrodynamics calculation process, the friction
loss is expressed as:
AP= =A l d 2g
wherein, Ap is the pressure loss from pump outlet to user end, y is water gravity, X is
frictional drag coefficient, 1 is pipe length, d is pipe inner diameter, and vc is water flow
rate.
7=pg
0.3164 Re0 25
Re=v~d V
wherein, Re is Reynolds number and v is kinematic viscosity.
The following formula can be obtained by calculation:
Ap 0.3164v° 2 1.75
y 2gd1 25 C
2 /7 V 4
The following formula can be obtained by calculation:
Ap_ 0.3164 x 4x v0 5 1 5 .2gd .75 JQ'17
Ap bpv° 25IQ 75
wherein,
b 0.24143 d4.
p=pgl+Ap
The height of the water supply floor can be obtained by following calculation:
l= 75 pg +bpvo25Q1
8. The secondary water supply system monitoring operation method according to claim 6,
characterized in that in the step 6.2, normalizing the samples is to make the control model
obtain the global optimal solution when training, and it is necessary to normalize the
collected data:
0.9-0.1 X'+(0.9+ 0.9-0.1 Xa P Xa - X X_ - X ax
In the formula, X is the input sample and ' is the normalized sample.
9. The secondary water supply system monitoring operation method according to claim 6,
characterized in that in the step 6.3, there are 4 nodes in the first layer of the control
model, 6 nodes in the second layer, and 1 output.
In the step 6.4, the error E is taken as 0.001 and the learning efficiency q is taken as 0.5,
then carry out training for several times and randomly initialize the weights of the control
model.
10. The secondary water supply system monitoring operation method according to claim
E ->(dk -Yk) 6, characterized in that in step 6.6, the error of the control model is 2k=1.
The error of the second layer is
E= $[dk- fZwjkyi)]2 2k-1 J0
The error of the first layer is
E -${dk -f(1W'f(Yv,,x)]}2 2K=1 J=0 1=0
The weights from the second layer to the output are adjusted as follows:
Aw jk = (dk - Yk)Yk(1 - k)Y
The weights from the first layer to the second layer are adjusted as follows:
Av,.. q (5kjk)Yj (1 - Y) k=1
In order to ensure the speed of the control model in the process of training, assume the
momentum coefficient as a in the process of weight adjustment, and the iterative
formula of weight adjustment is:
vi(t +1) = v,(t)- q 8E 1-+ aAv, (t)
8j wk(t +1)= w (t) - 77O +acAwi,(t).
When the calculation error E is less than the specification error , that is, E < , the
network proceeds to the next step; otherwise, return to step 5 until E < , is satisfied.
-1/5- 2020103080
Fig. 1
A schematic diagram of the present invention
-2/5- 2020103080
Fig. 2
A structural diagram of a water storage tank of the present invention
-3/5- 2020103080
Fig. 3
A control structure diagram of the present invention
-4/5- 2020103080
Fig. 4
A control principle block diagram of the present invention
-5/5- 2020103080
Fig. 5
A principle block diagram of the monitoring and operation device of the present
invention
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112695842A (en) * | 2021-01-11 | 2021-04-23 | 锦霸科技股份有限公司 | Constant-pressure water supply control method without pressure tank |
| CN113639679A (en) * | 2021-08-24 | 2021-11-12 | 广东省有色工业建筑质量检测站有限公司 | Detection device and method for measuring thickness of super-thick floor slab |
| CN113836785A (en) * | 2021-07-28 | 2021-12-24 | 南京尔顺科技发展有限公司 | Municipal regional intelligent water supply system and artificial intelligent control optimization method thereof |
| CN114489164A (en) * | 2022-02-18 | 2022-05-13 | 上海上源水科水务技术有限公司 | Secondary water supply monitoring system and method based on Internet of things |
| CN115387433A (en) * | 2022-09-16 | 2022-11-25 | 盐城丰华给水设备工程有限公司 | Intelligent no negative pressure secondary water supply equipment |
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| CN112695842A (en) * | 2021-01-11 | 2021-04-23 | 锦霸科技股份有限公司 | Constant-pressure water supply control method without pressure tank |
| CN113836785A (en) * | 2021-07-28 | 2021-12-24 | 南京尔顺科技发展有限公司 | Municipal regional intelligent water supply system and artificial intelligent control optimization method thereof |
| CN113836785B (en) * | 2021-07-28 | 2024-02-13 | 南京尔顺科技发展有限公司 | Municipal area intelligent water supply system and artificial intelligent control optimization method thereof |
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| CN113639679B (en) * | 2021-08-24 | 2023-08-25 | 广东省有色工业建筑质量检测站有限公司 | Detection device and method for measuring thickness of ultra-thick floor slab |
| CN114489164A (en) * | 2022-02-18 | 2022-05-13 | 上海上源水科水务技术有限公司 | Secondary water supply monitoring system and method based on Internet of things |
| CN115387433A (en) * | 2022-09-16 | 2022-11-25 | 盐城丰华给水设备工程有限公司 | Intelligent no negative pressure secondary water supply equipment |
| CN117627115A (en) * | 2023-11-07 | 2024-03-01 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
| CN117627115B (en) * | 2023-11-07 | 2024-05-14 | 湖南金龙给水设备有限公司 | Secondary water supply system and method with water pressure regulation and early warning functions |
| CN118012154A (en) * | 2024-04-10 | 2024-05-10 | 中国建筑设计研究院有限公司 | Terminal pressure control system of delivery pipe net |
| CN118012154B (en) * | 2024-04-10 | 2024-06-21 | 中国建筑设计研究院有限公司 | Terminal pressure control system of delivery pipe net |
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