CN117723126A - Remote positioning control water meter data acquisition system - Google Patents
Remote positioning control water meter data acquisition system Download PDFInfo
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Abstract
The invention discloses a remote positioning control water meter data acquisition system, which relates to the technical field of water meter data acquisition and comprises a water meter terminal, wherein the water meter terminal can adopt a common speed type water meter or a positive displacement type water meter, the top surface of the water meter terminal is provided with a counting rotating wheel, the water meter terminal counts flow data through the counting rotating wheel, the top surface of the water meter terminal is provided with a data acquisition terminal, a main control module, a communication module, a power module, an optical encoder, a clock module and an electronic tag are arranged in the data acquisition terminal, the output end of the water meter terminal is provided with a data calibration terminal, and the data calibration terminal comprises a magneto-electric converter and a current sensor; the main control module calibrates flow data based on a water volume calibration model according to the current data; the data calibration terminal can calibrate the flow data that the water gauge terminal gave regularly, guarantees the accuracy of flow data that the statistics of water gauge terminal count the number of turns of runner obtained.
Description
Technical Field
The invention relates to the technical field of water meter data acquisition, in particular to a remote positioning control water meter data acquisition system.
Background
The existing remote positioning control water meter data acquisition system is a data acquisition system for remote water meter data analysis disclosed in China patent with publication number of CN105823520A and a remote water meter data acquisition device disclosed in China patent with publication number of CN205920592U, after the remote positioning control water meter data acquisition system acquires water flow data in a water meter, the water flow data is transmitted to a control background through a wired network or a wireless network, so that workers are prevented from directly acquiring the water flow data in the water meter, and although the labor cost of water meter data acquisition is reduced to a certain extent, the following defects still exist:
firstly, water flow data acquisition and water flow data conversion of the water meter are in a single transmission mode, when errors occur in water flow data acquisition or errors occur in water flow data conversion, corresponding calibration cannot be performed, so that the accuracy of finally acquired water flow data in a control background is low, and the errors are large;
secondly, water flow data acquisition and conversion of water flow data of the water meter are separated, so that when the water flow data acquisition fails, the control background cannot judge the failure reason of the water meter in a short time, and the maintenance of the water meter cannot be completed in time.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a remote positioning control water meter data acquisition system, which solves the problems that in the prior art, when errors occur in acquisition of water flow data or in conversion of the water flow data, corresponding calibration cannot be performed, and the accuracy of the finally acquired flow data of a control background is low.
The aim of the invention can be achieved by the following technical scheme:
the remote positioning control water meter data acquisition system comprises a water meter terminal, wherein the water meter terminal can adopt a common speed type water meter or a positive displacement type water meter, a counting rotating wheel is arranged on the top surface of the water meter terminal, flow data is counted by the water meter terminal through the counting rotating wheel, a data acquisition terminal is arranged on the top surface of the water meter terminal, a main control module, a communication module, a power module, an optical encoder, a clock module and an electronic tag are arranged in the data acquisition terminal, a data calibration terminal is arranged at the output end of the water meter terminal, and the data calibration terminal comprises a magneto-electric converter and a current sensor; the main control module collects historical training data sets of the water meter terminal and the data calibration terminal in advance, and trains a water flow calibration model of the water meter terminal based on the historical training data sets; the main control module respectively collects flow data and current data through an optical encoder and a current sensor; and the main control module calibrates flow data based on a water volume calibration model according to the current data.
As a further scheme of the invention: the historical training data set is collected in the using process of the water meter terminal, the main control module collects flow data of the water meter terminal through the optical encoder, and each time of flow data collection is a group of training data;
the historical training data set comprises N groups of training data, N is a positive integer, and the training data is flow data.
As a further scheme of the invention: the top surface of the water meter terminal is provided with a counting rotating wheel, and the water meter terminal records water quantity data through the counting rotating wheel;
Q＝m×n；
where Q is flow data, m is a constant greater than 0, and n is the number of revolutions of the counting wheel.
As a further scheme of the invention: the main control module collects current data I of the data calibration terminal through a current sensor;
I＝k×Q+b 1 ；
where k is a scaling factor, b 1 The main control module establishes a rectangular coordinate system based on the water flow calibration model, wherein the X axis of the rectangular coordinate system is flow data Q, and the Y axis of the rectangular coordinate system is current data I.
As a further scheme of the invention: the input end of the water meter terminal is connected with an input end water pipe, and the output end of the water meter terminal is connected with an output end water pipe.
As a further scheme of the invention: the data calibration terminal further comprises a base, one side of the base is provided with a rotary sleeve, the side face of the rotary sleeve is fixedly connected with a spiral sheet, the end face of the spiral sheet is in contact with the inner wall of the output end water pipe, the side face of the base is fixedly connected with an installation arm, an annular permanent magnet is arranged in the rotary sleeve, the end face of the base is provided with a hair electromagnetic coil, and the hair electromagnetic coil sequentially penetrates through the base, the installation arm and the output end water pipe through wires to be connected with the data acquisition terminal.
As a further scheme of the invention: the main control module presets current data I of the data calibration terminal Presetting 、k Presetting M Presetting ：
I Presetting ＝k Presetting ×m Presetting ×n Prediction +b 2 ；
Wherein n is Prediction Calibrating the terminal's current data I for data Presetting When the master control module passes through the coefficient k Presetting The number of turns, k, predicted by the counting wheel is obtained Presetting As a proportionality coefficient, b 2 Are all constant, m Presetting And a constant preset for the main control module.
As a further scheme of the invention: when the data calibrate the current data I of the terminal Pre-preparation When the main control module collects and counts the actual rotation number n of the rotating wheel through the optical encoder Actual practice is that of The main control module collects actual current data I of the data calibration terminal (3) through the current sensor Actual practice is that of ；
I Presetting ＝k Presetting ×m Presetting ×n Actual practice is that of +b 2 ；
I Actual practice is that of ＝k Calibration of ×m Presetting ×n Actual practice is that of +b 2 ；
k Calibration of ＝[(I Actual practice is that of -b 2 )×n Prediction ]/[(I Prediction -b 2 )×n Actual practice is that of ]×k Presetting ；
Wherein k is Calibration of Is k Presetting Recalibration values, b 2 Is a constant of the ratio.
As a further scheme of the invention: the inside of the input end water pipe is provided with an electromagnetic valve, and the main control module is used for controlling the opening and closing of the electromagnetic valve.
As a further scheme of the invention: the magneto-electric converter is connected with the main control module through a wire, and the main control module comprises a sleep mode and a working mode;
when the magneto-electric converter does not generate current data, the main control module selects a sleep mode;
when the magneto-electric converter generates current data, the main control module selects a working mode.
The invention has the beneficial effects that:
1. according to the invention, through the mutual matching of the data acquisition terminal and the data calibration terminal, when the internal and external environments of the water meter terminal change to cause errors in flow data acquired by the water meter terminal, the data calibration terminal can calibrate the flow data given by the water meter terminal regularly, so that the accuracy of the flow data obtained by counting the rotation number of the rotating wheel by the water meter terminal is ensured, and when the errors required to be calibrated by the data calibration terminal are overlarge, the main control module can output a fault alarm of the water meter terminal at the moment and transmit the fault alarm of the water meter terminal to the management rear end through the communication module, the management rear end can rapidly and accurately give a maintenance instruction to the faulty water meter terminal through the electronic tag to mark the fault of the water meter terminal.
2. According to the invention, through the mutual coordination of the data acquisition terminal and the data calibration terminal, the main control module calculates flow data once at intervals of fixed time, and the working process time of the water meter terminal exceeds the set time, the main control module calculates the variance of the flow data counted in the set time, judges the use state of the water pipe of the user terminal according to the variance, reminds the user terminal, and the user terminal or the control rear end can select the electromagnetic valve on the inner side of the water pipe of the control input terminal, and closes the water meter terminal through the electromagnetic valve.
3. In the invention, the power generation magnetic ring is connected with the power supply module in the data acquisition terminal 2 through the lead, so that the electric energy generated by the power generation magnetic ring can charge the power supply module, the endurance of the power supply module is increased, when the magnetoelectric transducer does not generate current data, the main control module selects a sleep mode, the loss of the power supply module is reduced, the endurance of the power supply module is further improved, and when the magnetoelectric transducer generates current data, the main control module selects a working mode.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the water meter terminal of the present invention;
FIG. 3 is a front view of a data alignment terminal of the present invention;
FIG. 4 is a system block diagram of the present invention;
fig. 5 is a schematic diagram of a rectangular coordinate system established by the water flow calibration model of the present invention.
In the figure: 1. a water meter terminal; 11. counting the rotating wheel; 12. an input end water pipe; 13. an output end water pipe; 2. a data acquisition terminal; 3. a data calibration terminal; 31. a base; 32. a rotating sleeve; 33. a mounting arm; 34. and (5) a spiral sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1, 2 and 4, the invention discloses a remote positioning control water meter data acquisition system, which comprises a water meter terminal 1, wherein the water meter terminal 1 can adopt a common speed type water meter or a positive displacement type water meter, the top surface of the water meter terminal 1 is provided with a counting rotating wheel 11, the water meter terminal 1 counts flow data through the counting rotating wheel 11, the top surface of the water meter terminal 1 is provided with a data acquisition terminal 2, a main control module, a communication module, a power module, an optical encoder, a clock module and an electronic tag are arranged in the data acquisition terminal 2, and the output end of the water meter terminal 1 is provided with a data calibration terminal 3;
it should be noted that, the communication module adopts a wireless communication mode, such as an internet of things, a WiFi network, a local area network or a 3/4/5G network, and is matched with the remote positioning control water meter data acquisition system to be a management back end, and the management back end can acquire the data information acquired by the data acquisition terminal 2 through the communication module;
the optical encoder is arranged in the data acquisition terminal 2 and is close to the position of the counting runner 11 on the top surface of the water meter terminal 1, when the water meter terminal 1 works, the counting runner 11 on the top surface of the water meter terminal 1 can generate corresponding rotation turns after the water flow in the water meter terminal 1 passes through the water meter terminal 1, the optical encoder can identify the optical pulse in the rotation process of the counting runner 11, and then the optical pulse is converted into a digital signal to be transmitted to the main control module, so that the main control module can acquire the rotation turns of the counting runner 11 in real time, namely acquire the statistical flow data of the counting runner 11 in real time;
the power module directly provides power for the main control module, the communication module, the optical encoder, the clock module and the electronic tag;
the clock module is used for recording the working time of the counting rotating wheel 11, the electronic tag is used for marking the data acquisition terminal 2 corresponding to the water meter terminal 1, and the management rear end carries out classified management on different data acquisition terminals 2 through the electronic tag;
it should be noted that the data calibration terminal 3 includes a magneto-electric transducer and a current sensor;
when the water flow in the water meter terminal 1 passes through the water meter terminal 1, the water flows from the input end to the output end of the water meter terminal 1 in sequence, the magneto-electric converter converts the flowing power of the water into electric energy in the water flowing process, and the current sensor monitors the current data in the electric energy generated by the magneto-electric converter.
As shown in fig. 4, a master control module collects historical training data sets of a water meter terminal 1 and a data calibration terminal 3 in advance, and the master control module trains a water flow calibration model of the water meter terminal 1 based on the historical training data sets;
the main control module respectively collects flow data and current data through the optical encoder and the current sensor;
the main control module calibrates flow data based on a water volume calibration model according to the current data;
the historical training data set is collected in the using process of the water meter terminal 1, the main control module collects flow data of the water meter terminal 1 through the optical encoder, and each time of flow data collection is a group of training data;
the historical training data set comprises N groups of training data, wherein N is a positive integer, and the training data is flow data;
the water meter terminal 1 records water volume data through the counting wheel 11;
Q＝m×n；
wherein Q is flow data, m is a constant larger than 0, n is the number of rotations of the counting wheel 11, and m is a preset value of the water meter terminal 1, which is determined according to the sectional area of the inside of the water meter terminal 1 and the specification of the impeller inside the water meter terminal 1, wherein one measurement method is that the release volume of the water meter terminal 1 is 1m 3 The number of rotations of the counting wheel 11 on the water meter terminal 1 is counted to determine the specific value of the coefficient m, so that in the implementation process, the water meter terminal 1 counts the flow data of the water meter terminal 1 through the counting wheel 11, the data acquisition terminal 2 recognizes the light pulse in the rotation process of the counting wheel 11 through the optical encoder and then converts the light pulse into a digital signal to be transmitted to the main control module, so that the main control module can acquire the number of rotations of the counting wheel 11 in real time, the main control module calculates the flow data of the water meter terminal 1 through the formula of Q=m×n and then transmits the flow data to the management rear end through the communication mode, and the water meter terminal 1 is an existing speed type water meter or a volume type water meter, so that when the existing speed type water meter or volume type water meter is upgraded, the existing water meter terminal 1 does not need to be detached, and the upgrading cost of the water meter terminal 1 can be reduced.
The main control module collects current data I of the data calibration terminal 3 through a current sensor;
the main control module establishes a rectangular coordinate system based on the water flow calibration model, and as shown in fig. 5, the X axis of the rectangular coordinate system is flow data Q, and the Y axis of the rectangular coordinate system is current data I;
when the remote positioning control water meter data acquisition system is used, firstly, water flow is introduced into the water meter terminal 1, then the water yield of the output end of the water meter terminal 1 is adjusted, and the water yield of the output end of the water meter terminal 1 is increased from 0;
the main control module collects and counts the number of rotation turns of the rotating wheel 11 through an optical encoder, and then calculates the variation of flow data Q of the water meter terminal 1 through a formula of Q=m×n;
the main control module also collects the variation of the current data I of the data calibration terminal 3 through the current sensor;
bringing the variation of the water quantity data Q and the variation of the current data I into a rectangular coordinate system to obtain the relation between Q and I in FIG. 5;
as can be seen from reading fig. 5, the flow data of the water meter terminal 1 is shown as [ Q min ，Q max ]When the range of the current data I is within [ I ] and the water quantity data Q is linearly related min ，I max ]Is within the range of (2);
will (I) min ，Q min ) And (I) max ，Q max ) Substitution:
I＝k×Q+b 1 ；
determination of k and b 1 Specific values of (2);
in the actual process of remotely positioning and controlling the water meter data acquisition system, namely after the water meter terminal 1 is upgraded, firstly, the output end of the water meter terminal 1 is opened to enable the water meter terminal 1 to work normally, and along with the increase of the water flow of the output end of the water meter terminal 1, a main control module in the data acquisition terminal 2 can acquire current data I of the data calibration terminal 3 through a current sensor, and two current data I are randomly arranged to the main control module Threshold 1 And I Threshold 2 ，I Threshold 1 And I Threshold 2 At [ I ] min ，I max ]Within the scope of (1), e.g. take I Threshold 1 ＝(I min +I max )/3，I Threshold 2 ＝(I min +I max ) And/2, when the current data collected by the water meter terminal 1 reaches I Threshold 1 And I Threshold 2 When (1):
the main control module collects flow data Q of the water meter terminal 1 through an optical encoder 1 And Q 2 ；
Then (I) Threshold 1 ，Q 1 ) And (I) Threshold 2 ，Q 2 ) Substituting the formula "i=k×q+b" and measuring specific values of k and b yields:
I＝k presetting ×Q+b Presetting ；
The clock module in the data acquisition terminal 2 records the working time of the water meter terminal 1, the main control module periodically calibrates the flow data, for example, the flow data is calibrated once every other day or one week, or real-time monitoring is performed, that is, the current data acquired by the main control module every time reaches I Threshold 1 And I Threshold 2 When the flow data is calibrated once, the specific method is as follows:
the first step: the main control module recognizes the light pulse in the rotation process of the counting rotating wheel 11 through the light encoder, and then converts the light pulse into a digital signal to be transmitted to the main control module, so that the main control module can acquire the rotation number of the counting rotating wheel 11 in real time;
and a second step of: the main control module passes through the formula Q=m Presetting Calculating real-time flow data Q of the water meter terminal 1 by Xn Real time And then transmitted to the management back end through the communication mode, where "q=m Presetting "m" in Xn Presetting "is the initial preset coefficient of the water meter terminal 1;
and a third step of: the main control module collects real-time current data I of the data calibration terminal 3 through a current sensor Real time ；
Fourth step: the main control module substitutes the real-time current data I of the collected data calibration terminal 3 into the formula I in real time Real time ＝k Presetting ×Q+b Presetting "in the prediction of flow data Q of water meter terminal 1 Prediction ；
Fifth step: flow data Q in real time through the meter terminal 1 Real time Flow data Q predicted by the water meter terminal 1 Prediction Calibration coefficient m:
Q real time ＝m Presetting ×n；
Q Prediction ＝m Calibration of ×n；
m Calibration of ＝Q Prediction /Q Real time ；
According to the formula "m Calibration of ＝Q Prediction /Q Real time "it can be seen that if Q Prediction ＝Q Real time ，m Calibration of ＝m Presetting ，m Presetting The value of (2) does not need to be changed, and the precision of the water meter terminal 1 is still very high;
if Q Prediction <Q Real time It is explained that the flow data obtained by counting the number of rotations of the counting wheel 11 of the water meter terminal 1 is large, and thus it is necessary to reduce m Presetting A numerical value;
if Q Prediction >Q Real time It is explained that the flow data obtained by counting the number of rotations of the counting wheel 11 of the water meter terminal 1 is small, and thus it is necessary to increase m Presetting A numerical value;
in summary, through the mutual coordination of the data acquisition terminal 2 and the data calibration terminal 3, when the internal and external environments of the water meter terminal 1 change, and the flow data acquired by the water meter terminal 1 generate errors, the data calibration terminal 3 periodically calibrates the flow data given by the water meter terminal 1, so as to ensure the accuracy of the flow data obtained by counting the number of rotations of the rotating wheel 11 by the water meter terminal 1;
it should be emphasized that the main control module presets m Calibration of If Q is the threshold value of Prediction <0.95Q Real time Or Q Prediction >1.05Q Real time The adjusting range of the prompt m is overlarge, at the moment, the main control module can output the fault alarm of the water meter terminal 1, the fault alarm of the water meter terminal 1 is transmitted to the management rear end through the communication module, the fault of the water meter terminal 1 is marked through the electronic tag, and the management rear end can rapidly and accurately give maintenance instructions to the faulty water meter terminal 1.
Example 2:
as shown in fig. 1, 2 and 3, an input end of a water meter terminal 1 is connected with an input end water pipe 12, an output end of the water meter terminal 1 is connected with an output end water pipe 13, the data calibration terminal 3 further comprises a base 31, one side of the base 31 is provided with a rotary sleeve 32, a spiral sheet 34 is fixedly connected to the side surface of the rotary sleeve 32, the end surface of the spiral sheet 34 is in contact with the inner wall of the output end water pipe 13, an installation arm 33 is fixedly connected to the side surface of the base 31, an annular permanent magnet is arranged in the rotary sleeve 32, an electromagnetic coil is arranged on the end surface of the base 31, and sequentially penetrates through the base 31, the installation arm 33 and the output end water pipe 13 through wires to be connected with the data acquisition terminal 2, an electromagnetic valve is arranged on the inner side of the input end water pipe 12, and a main control module is used for controlling the opening and closing of the electromagnetic valve;
it should be noted that, the input end water pipe 12 is connected with a water supply pipe in an external environment, the output end water pipe 13 is directly connected with a water supply pipe of a user end, the clock module in the data acquisition terminal 2 records the working time of the water meter terminal 1, meanwhile, the main control module in the data acquisition terminal 2 acquires the number n of rotation of the rotating wheel 11 in the working process of the water meter terminal 1 through the optical encoder, and then the flow data Q of the water meter terminal 1 in the working process is obtained through the formula of 'q=m×n';
specifically, the main control module calculates primary flow data Q at intervals of fixed time, for example, calculates primary flow data Q at intervals of ten minutes;
if the working process time of the water meter terminal 1 exceeds 2 hours in the time [ 5:00-24:00) ] of the water meter terminal 1, the main control module calculates the variance sigma of the flow data Q counted in the 2 hours, and the main control module presets a variance sigma Threshold value ；
If sigma is less than or equal to sigma Threshold value If the working state of the water meter terminal 1 is not changed for more than 2 hours, the water pipe of the user side is indicated to be opened or unattended or broken, at the moment, the main control module transmits the state of the water meter terminal 1 to the control rear end or directly reminds the APP of the user side, the user side is reminded, the user side or the control rear end can select an electromagnetic valve on the inner side of the water pipe 12 of the control input end, and the water meter terminal 1 is closed through the electromagnetic valve;
if sigma>σ Threshold value The state of the water meter terminal 1 is changed and has the factor of artificial control, so that the main control module directly ignores the state;
if the working process time of the water meter terminal 1 exceeds 1 hour in the time [ 0:00-5:00) ] time of the water meter terminal 1, the main control module calculates the variance sigma of the flow data Q counted in 1 hour, and the main control module presets a variance sigma Threshold value ；
If sigma is less than or equal to sigma Threshold value If the working state of the water meter terminal 1 is not changed for more than 1 hour, the water pipe of the user side is indicated to be opened or unattended or broken, at the moment, the main control module transmits the state of the water meter terminal 1 to the control rear end or directly reminds the APP of the user side, the user side is reminded, the user side or the control rear end can select an electromagnetic valve on the inner side of the water pipe 12 of the control input end, and the water meter terminal 1 is closed through the electromagnetic valve;
if sigma>σ Threshold value The state of the operation of the water meter terminal 1 is changed, and the main control module directly ignores the state because of the factors of artificial control.
Example 3:
current data I of master control module preset data calibration terminal 3 Presetting 、k Presetting M Presetting ；
I Presetting ＝k Presetting ×m×n Prediction +b 2 ；
Wherein n is Prediction Calibrating the current data I of the terminal 3 for data Presetting When the master control module passes through the coefficient k Presetting The number of revolutions predicted by the counting wheel 11, b 2 For determination b in example 1 Presetting Is a value of (2).
The main control module collects and counts the actual rotation number n of the rotating wheel 11 through the optical encoder Actual practice is that of The main control module collects actual current data I of the data calibration terminal 3 through a current sensor Actual practice is that of ；
I Actual practice is that of ＝k Calibration of ×m Presetting ×n Actual practice is that of +b 2 ；
I Presetting ＝k Presetting ×m Presetting ×n Prediction +b 2 ；
Dividing the two formulas to obtain:
k calibration of ＝[(I Actual practice is that of -b 2 )×n Prediction ]/[(I Prediction -b 2 )×n Actual practice is that of ]×k Presetting ；
Wherein k is Calibration of Is k Presetting Recalibrating the values;
when the external temperature changes greatly in a short time, the main control module is used to collect the actual number of rotations n of the counting wheel 11 through the optical encoder Actual practice is that of The value of k is recalibrated because a large change in temperature causes a large change in the generating coil inside the data calibration terminal 3, so that after a short time of a large change in the external temperature, the value of k needs to be recalibrated, specifically by the following method:
the first step: the main control module recognizes the light pulse in the rotation process of the counting rotating wheel 11 through the light encoder, and then converts the light pulse into a digital signal to be transmitted to the main control module, so that the main control module can acquire the rotation number n of the counting rotating wheel 11 in real time Actual practice is that of ；
And a second step of: the main control module is according to the formula I Prediction ＝k Presetting ×m Presetting ×n Actual practice is that of +b 2 "predicting the current data I of the data calibration terminal 3 Prediction ；
And a third step of: the main control module collects actual current data I of the data calibration terminal 3 through the current sensor Actual practice is that of The following steps are:
I actual practice is that of ＝k Calibration of ×m Presetting ×n Actual practice is that of +b 2 ；
I Presetting ＝k Presetting ×m Presetting ×n Prediction +b 2 ；
Dividing the two formulas to obtain:
k calibration of ＝[(I Actual practice is that of -b 2 )×n Prediction ]/[(I Prediction -b 2 )×n Actual practice is that of ]×k Presetting ；
Wherein k is Calibration of Is k Presetting The recalibrated numerical value is adjusted adaptively according to the environment, so that the stability and the accuracy of the flow data calibrated by the data calibration terminal 3 are ensured.
Example 4:
the magneto-electric converter is connected with the main control module through a wire, the main control module comprises a sleep mode and a working mode, specifically, the input end of the water meter terminal 1 is connected with an input end water pipe 12, the output end of the water meter terminal 1 is connected with an output end water pipe 13, the data calibration terminal 3 further comprises a base 31, one side of the base 31 is provided with a rotary sleeve 32, the side surface of the rotary sleeve 32 is fixedly connected with a spiral sheet 34, the end surface of the spiral sheet 34 is in contact with the inner wall of the output end water pipe 13, the side surface of the base 31 is fixedly connected with a mounting arm 33, an annular permanent magnet is arranged in the rotary sleeve 32, the end surface of the base 31 is provided with a magnetic coil, and the magnetic coil sequentially penetrates through the base 31, the mounting arm 33 and the output end water pipe 13 through the wire to be connected with the data acquisition terminal 2;
the main control module, the communication module, the power module, the optical encoder, the clock module and the electronic tag are arranged in the data acquisition terminal 2, and the electromagnetic coil is connected with the power module in the data acquisition terminal 2 through a wire, so that the power generated by the electromagnetic coil can charge the power module, and the endurance of the power module is increased;
when the magneto-electric converter does not generate current data, the main control module selects a sleep mode, so that the loss of the power supply module is reduced, and the endurance of the power supply module is improved;
when the magneto-electric converter generates current data, the main control module selects a working mode.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
1. A remotely located control meter data acquisition system comprising:
a water meter terminal (1);
the data acquisition terminal (2) is arranged on the top surface of the water meter terminal (1), and a main control module, a communication module, a power supply module, an optical encoder, a clock module and an electronic tag are arranged in the data acquisition terminal (2);
the data calibration terminal (3) is arranged at the output end of the water meter terminal (1), and the data calibration terminal (3) comprises a magneto-electric converter and a current sensor;
the main control module collects historical training data sets of the water meter terminal (1) and the data calibration terminal (3) in advance, and trains a water flow calibration model of the water meter terminal (1) based on the historical training data sets;
the main control module respectively collects flow data and current data through an optical encoder and a current sensor;
and the main control module calibrates flow data based on a water volume calibration model according to the current data.
2. The remote positioning control water meter data acquisition system according to claim 1, wherein the historical training data set is collected in the using process of the water meter terminal (1), the main control module acquires flow data of the water meter terminal (1) through the optical encoder, and each time the flow data is acquired as a group of training data;
the historical training data set comprises N groups of training data, N is a positive integer, and the training data is flow data.
3. The remote positioning control water meter data acquisition system according to claim 2, wherein the top surface of the water meter terminal (1) is provided with a counting rotating wheel (11), and the water meter terminal (1) records flow data through the counting rotating wheel (11);
Q＝m×n；
wherein Q is flow data, m is a constant greater than 0, and n is the number of rotations of the counting wheel (11).
4. A remotely located control meter data acquisition system as claimed in claim 3 wherein said master control module acquires current data I from a data calibration terminal (3) via a current sensor;
I＝k×Q+b 1 ；
where k is a scaling factor, b 1 The main control module establishes a rectangular coordinate system based on the water flow calibration model with the X axis of the rectangular coordinate system as flow data QThe Y-axis of the rectangular coordinate system is the current data I.
5. The remote positioning control water meter data acquisition system according to claim 1, wherein the input end of the water meter terminal (1) is connected with an input end water pipe (12), and the output end of the water meter terminal (1) is connected with an output end water pipe (13).
6. The remote positioning control water meter data acquisition system according to claim 5, wherein the data calibration terminal (3) further comprises a base (31), a rotary sleeve (32) is arranged on one side of the base (31), a spiral sheet (34) is fixedly connected to the side face of the rotary sleeve (32), the end face of the spiral sheet (34) is in contact with the inner wall of the output end water pipe (13), an installation arm (33) is fixedly connected to the side face of the base (31), an annular permanent magnet is arranged in the rotary sleeve (32), an electromagnetic coil is arranged on the end face of the base (31), and the electromagnetic coil sequentially penetrates through the base (31), the installation arm (33) and the output end water pipe (13) through wires to be connected with the data acquisition terminal (2).
7. The remote positioning control water meter data acquisition system according to claim 4, wherein the main control module presets current data I of the data calibration terminal (3) Presetting 、k Presetting M Presetting ：
I Presetting ＝k Presetting ×m Presetting ×n Prediction +b 2 ；
Wherein n is Prediction Calibrating the current data I of the terminal (3) for data Presetting When the master control module passes through the coefficient k Presetting The number of rotations, k, predicted by the counting wheel (11) is obtained Presetting As a proportionality coefficient, b 2 Is constant, m Presetting And a constant preset for the main control module.
8. The remote control water meter data acquisition system as claimed in claim 7, wherein the main control module acquires the actual number of rotations n of the counting wheel (11) through the optical encoder Actual practice is that of A master controlThe module collects actual current data I of the data calibration terminal (3) through the current sensor Actual practice is that of ：
I Presetting ＝k Presetting ×m Presetting ×n Prediction +b 2 ；
I Actual practice is that of ＝k Calibration of ×m Presetting ×n Actual practice is that of +b 2 ；
k Calibration of ＝[(I Actual practice is that of -b 2 )×n Prediction ]/[(I Prediction -b 2 )×n Actual practice is that of ]×k Presetting ；
Wherein k is Calibration of Is k Presetting Recalibration values, b 2 Is constant.
9. The remote positioning control water meter data acquisition system according to claim 5, wherein an electromagnetic valve is arranged on the inner side of the input end water pipe (12), and the main control module is used for controlling the opening and closing of the electromagnetic valve.
10. The remote positioning control water meter data acquisition system according to claim 1, wherein the magneto-electric converter is connected with a main control module through a wire, and the main control module comprises a sleep mode and a working mode;
when the magneto-electric converter does not generate current data, the main control module selects a sleep mode;
when the magneto-electric converter generates current data, the main control module selects a working mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311730429.1A CN117723126A (en) | 2023-12-15 | 2023-12-15 | Remote positioning control water meter data acquisition system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311730429.1A CN117723126A (en) | 2023-12-15 | 2023-12-15 | Remote positioning control water meter data acquisition system |
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| CN117723126A true CN117723126A (en) | 2024-03-19 |
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| CN202311730429.1A Pending CN117723126A (en) | 2023-12-15 | 2023-12-15 | Remote positioning control water meter data acquisition system |
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| CN (1) | CN117723126A (en) |
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- 2023-12-15 CN CN202311730429.1A patent/CN117723126A/en active Pending
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