An intelligent water meter computing service system based on laser speed measurement

Abstract

The present invention belongs to the technical field of flow measurement, and in particular, relates to a smart water meter calculation service system based on laser speed measurement, including a laser speed measurement unit, a calculation unit and a data service unit, wherein the laser speed measurement unit is used to measure the water consumption rate, the laser speed measurement unit includes an impeller speed measurement unit and a pulse metering unit, the calculation unit is used to calculate the water consumption information, the calculation unit includes a water consumption rate calculation unit, a water consumption calculation unit and a prediction calculation unit, the data service unit is used to classify and transmit and store data, and the data service unit includes a data summarization processing unit and a data transmission unit. The impeller of the smart meter is measured by the laser speed measurement unit, the pulse metering unit measures the number of pulses according to the pulses generated by the rotation of the impeller, and the water consumption information is calculated according to the number of pulses and the impeller speed. The laser speed measurement unit can accurately measure the rotation of the impeller, measure the water consumption rate in real time, and understand the water consumption situation.

Description

Technical Field

[0001] The invention belongs to the technical field of flow measurement, and in particular relates to an intelligent water meter calculation service system based on laser speed measurement. Background Art

[0002] Electricity is an energy source that uses electrical energy as a driving force. It is one of the three scientific and technological revolutions that have taken place in the world. With the advent of the Internet era and the continuous emergence of new technologies, electricity has become a necessity for people's lives and national production. Electricity is usually produced and maintained through power systems. An important device in the power system is the energy meter. Therefore, the top priority to ensure the normal operation of the power system is to ensure the normal operation of the energy meter.

[0003] In recent years, with the continuous improvement of economy and people's living standards, and with the rapid development of electronic technology and computer technology, the intelligent process of various industries has become faster and faster, and smart meters have been increasingly used in people's lives, and the requirements for smart meters have become higher and higher. The existing meters are not only complex in structure, but also have low performance, poor computing and monitoring capabilities, low measurement level, and poor data processing capabilities, and cannot quickly and conveniently provide an accurate data service. In view of this, we propose a smart water meter computing service system based on laser speed measurement. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent water meter calculation service system based on laser velocity measurement to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A smart water meter calculation service system based on laser speed measurement, comprising a laser speed measurement unit, a calculation unit and a data service unit, wherein the laser speed measurement unit is used to measure water use rate, the laser speed measurement unit comprises an impeller speed measurement unit and a pulse metering unit, the calculation unit is used to calculate water use information, the calculation unit comprises a water use rate calculation unit, a water consumption calculation unit and a prediction calculation unit, the data service unit is used to classify, transmit and store data, and the data service unit comprises a data summarization processing unit and a data transmission unit.

[0007] Preferably, the impeller speed measuring unit is used to measure the rotation speed of the impeller, and the arc angle corresponding to each blade on the impeller is θ.

[0008] Preferably, the impeller speed measuring unit calculates the corresponding rotation speed V when the impeller rotates through an arc angle θ using the following calculation formula:

[0009]

[0010] Among them, the circumference of the circle with the distance from the laser speed measurement position to the impeller center position as the radius is S, and t is the time taken by the laser to measure the impeller to rotate through the arc angle θ.

[0011] Preferably, the pulse metering unit is used to measure the number of pulses generated by the laser speed measurement, and each rotation of the blade passing through the speed measurement laser generates a pulse signal.

[0012] Preferably, the water usage rate calculation unit is used to calculate the real-time water usage rate, and the calculation formula for calculating the real-time water usage rate Vt is:

[0013]

[0014] in, is the water consumption corresponding to the impeller rotation unit distance, and V is the impeller speed.

[0015] Preferably, the water consumption calculation unit is used to calculate the water consumption M within a time T, and the calculation formula for the water consumption M within the time T is:

[0016] M = nk;

[0017] Where n is the number of pulses generated within the time T, and k is the amount of water required to generate a single pulse.

[0018] Preferably, the prediction calculation unit is used to predict the water consumption after calculation based on the collected data, and the prediction calculation formula of the prediction calculation unit is:

[0019]

[0020] Among them, C(k) is the calculation of the k-th predicted water consumption, a k is the influence degree of system water load at the time of k-th prediction, Vr(k) refers to the actual water consumption at the k-th time, ρ is an adjustment parameter for the proportion of different smart water meter adjustment experience values ​​and preset values, ρ is used to indicate the adjustment influence degree of smart water meter, and C(k+1) is the calculation of the k+1-th predicted water consumption.

[0021] Preferably, the data summarization processing unit is used to classify and store the calculated data, and the data summarization processing unit is provided with a memory, and the memory is used to temporarily store the classified data.

[0022] Preferably, the data transmission unit uploads the data classified and stored by the data summarization processing unit to a database via a wireless network.

[0023] Preferably, the steps of the classification and summarization method of the data summarization processing unit are:

[0024] Step S1: adding a feature code to the data calculated by the calculation unit according to the time and data type;

[0025] Step S2: Use the formula f(u, t) = ∑ b (n u , n t ) classify the data, the feature code u is the data type, and the feature code t is the time when the data is generated;

[0026] Step S3: The classified data is first stored in a memory provided in the data summarization processing unit and then uploaded.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the speed of the impeller of the smart meter is measured by a laser speed measuring unit, the impeller speed measuring unit measures the impeller rotation speed, the pulse metering unit measures the number of pulses according to the pulses generated by the impeller rotation, and the water usage information is calculated based on the number of pulses and the impeller rotation speed.

[0028] The laser speed measurement unit can accurately measure the rotation of the impeller. The water use rate calculation unit measures the water use rate in real time according to the impeller rotation speed, understands the water use situation, and facilitates the collection of real-time data on the water use rate. The water consumption calculation unit calculates the water consumption within a time period according to the number of revolutions or the distance of the impeller within a time period. It can also calculate the total water consumption within a time period according to the number of pulses and the water consumption required to generate a single pulse. The accuracy of the measurement result is verified by the calculus of the water use rate within a time period and the calculated water consumption.

[0029] The data summarization processing unit and the data transmission unit transmit and classify the measured and calculated data to facilitate subsequent data query and data statistics, which is beneficial to the subsequent prediction and understanding of water use conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure flow of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the laser speed measurement unit in the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the computing unit in the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the data service unit in the present invention;

[0034] Figure 5 It is a schematic diagram of the data collection and calculation process in the present invention;

[0035] Figure 6 It is a schematic diagram of the data uploading and storing process in the present invention.

[0036] In the figure: 1 laser speed measurement unit, 2 calculation unit, 3 data service unit, 101 impeller speed measurement unit, 102 pulse metering unit, 201 water use rate calculation unit, 202 water consumption calculation unit, 203 prediction calculation unit, 301 data summarization processing unit, 302 data transmission unit. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-6 , the present invention provides a technical solution:

[0039] A smart water meter calculation service system based on laser speed measurement, comprising a laser speed measurement unit 1, a calculation unit 2 and a data service unit 3, wherein the laser speed measurement unit 1 is used to measure the water use rate, and the laser speed measurement unit 1 comprises an impeller speed measurement unit 101 and a pulse metering unit 102, the calculation unit 2 is used to calculate water use information, and the calculation unit 2 comprises a water use rate calculation unit 201, a water consumption calculation unit 202 and a prediction calculation unit 203, and the data service unit 3 is used to classify, transmit and store data, and the data service unit 3 comprises a data summarization processing unit 301 and a data transmission unit 302.

[0040] In the present invention, the impeller speed measuring unit 101 is used to measure the impeller rotation speed, and the arc angle corresponding to each blade on the impeller is θ. There is a gap between the blades, and the sum of the arc angles corresponding to all the blades is not equal to 2π. The arc angle θ corresponding to the blade can be used to calculate the impeller speed.

[0041] The impeller speed measuring unit 101 calculates the speed V corresponding to the impeller rotating through an arc angle θ as follows:

[0042]

[0043] The circumference of a circle with the distance from the laser speed measurement position to the center of the impeller as the radius is S, and t is the time taken by the laser to measure the impeller to rotate through the arc angle θ. The impeller speed is calculated by the impeller speed measurement unit 101, and then the water use rate and water consumption information are calculated based on the impeller speed. Based on the quantitative relationship between the speed and the water consumption, the water consumption can be calculated by calculus by summing the known rates.

[0044] In addition, the pulse metering unit 102 is used to measure the number of pulses generated by the laser speed measurement, and the laser speed measurement generates a pulse signal every time it passes through a blade. The water usage rate calculation unit 201 is used to calculate the real-time water usage rate. The calculation formula for calculating the real-time water usage rate Vt is:

[0045]

[0046] in, is the water consumption corresponding to the impeller rotation unit distance, and V is the impeller speed.

[0047] By converting the speed data into pulse number data, the water consumption rate and water consumption are intuitively calculated according to the water consumption corresponding to a single pulse. The water consumption calculation unit 202 is used to calculate the water consumption M within a time T. The water consumption M calculation formula within a time T is:

[0048] M = nk;

[0049] Among them, n is the number of pulses generated in time T, and k is the amount of water required to generate a single pulse. By intuitively understanding the number of pulses per unit time and the number of pulses at a certain time, we can understand the water consumption rate and water consumption data information.

[0050] The prediction calculation unit 203 is used to predict the water consumption after calculation based on the collected data. The prediction calculation formula of the prediction calculation unit 203 is:

[0051]

[0052] Among them, C(k) is the calculation of the k-th predicted water consumption, a k is the influence degree of system water load at the time of k-th prediction, Vr(k) refers to the actual water consumption at the k-th time, ρ is an adjustment parameter of the proportion of the experience value and the preset value of different smart water meters, ρ is used to indicate the adjustment influence degree of the smart water meter, and C(k+1) is used to calculate the k+1-th predicted water consumption. The present invention predicts water use information through a progressive prediction method. The progressive prediction predicts the second measured and calculated data by using the actual data of the first measurement and calculation. After obtaining the actual data of the second time, the third measured and calculated data is progressively predicted by using the known actual data of the first and second times and the predicted data of the second time. By predicting the water use rate and water consumption data information, the approximate water use situation can be understood in advance, and the prediction and calculation data information service function is provided.

[0053] The data summarization processing unit 301 is used to classify and store the calculated data. The data summarization processing unit 301 is provided with a memory, and the memory is used to temporarily store the classified data.

[0054] The data is classified, transmitted and stored by the time and data type of data collection, and the data is divided into water consumption data, water consumption rate data and predicted water consumption data, and then classified according to the time when the data was collected. The data transmission unit 302 uploads the classified stored data to the database by wireless transmission. The classification and summarization method of the data summarization processing unit 301 is as follows:

[0055] Step S1: adding a feature code to the data calculated by the calculation unit according to the time and data type;

[0056] Step S2: Use the formula f(u, t) = ∑ b (n u , n t ) classify the data, u is the data type, t is the time when the data is generated;

[0057] Step S3: The classified data is first stored in the memory provided in the data summarization processing unit 301 for uploading.

[0058] The specific working process of the present invention is as follows: when in use, the impeller of the smart meter is measured by the laser speed measuring unit 1, and the impeller speed measuring unit 101 measures the impeller speed. The measured impeller speed is used to calculate the water consumption and water consumption rate information. The pulse metering unit 102 measures the number of pulses according to the pulses generated by the rotation of the impeller, and then calculates the water consumption information according to the number of pulses and the impeller speed. The water consumption rate calculation unit 201 in the calculation unit 2 calculates the real-time water consumption rate according to the impeller speed, and the water consumption calculation unit 202 calculates the water consumption within the time according to the number of revolutions of the impeller or the distance turned within the time. The water consumption calculation unit 202 calculates the total water consumption within the time according to the number of pulses generated and the water consumption required to generate a single pulse, and verifies the accuracy of the measurement result by the calculus of the water consumption rate within the time and the calculated water consumption. The prediction calculation unit 203 obtains the water consumption and water consumption rate data through the rate prediction water use information, and provides intelligent calculation and prediction water use data services. The measured and calculated data are then classified and uploaded to the database for storage through the data service unit 3, which is convenient for subsequent query and reference.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart water meter computing service system based on laser speed measurement, comprising a laser speed measurement unit (1), a computing unit (2) and a data service unit (3), characterized in that: The laser speed measurement unit (1) is used to measure the water consumption rate, and the laser speed measurement unit (1) comprises an impeller speed measurement unit (101) and a pulse metering unit (102); the calculation unit (2) is used to calculate water consumption information, and the calculation unit (2) comprises a water consumption rate calculation unit (201), a water consumption calculation unit (202) and a prediction calculation unit (203); the data service unit (3) is used to classify and transmit and store data, and the data service unit (3) comprises a data summarization processing unit (301) and a data transmission unit (302); the impeller speed measurement unit (101) is used to measure the impeller rotation speed, and the arc angle corresponding to each blade on the impeller is θ; the impeller speed measurement unit (101) calculates the corresponding rotation speed V when the impeller rotates through the arc angle θ as follows: The circumference of a circle with a distance from the laser speed measurement position to the center position of the impeller as the radius is S, and t is the time taken by the laser to measure the impeller's rotation through an arc angle θ; the pulse metering unit (102) is used to measure the number of pulses generated by the laser speed measurement, and each blade rotation passing through the speed measurement laser generates a pulse signal; the water consumption rate calculation unit (201) is used to calculate the real-time water consumption rate, and the calculation formula for calculating the real-time water consumption rate Vt is: in, is the water consumption corresponding to the impeller rotation unit distance, and V is the impeller speed; the water consumption calculation unit (202) is used to calculate the water consumption M within a time T, and the calculation formula for the water consumption M within the time T is: M = nk; Wherein, n is the number of pulses generated within the time T, and k is the amount of water required to generate a single pulse; the prediction calculation unit (203) is used to predict the amount of water used after calculation based on the collected data, and the prediction calculation formula of the prediction calculation unit (203) is: Among them, C(k) is the calculation of the k-th predicted water consumption, a k is the influence degree of system water load at the time of k-th prediction, Cr(k) refers to the actual water consumption at the k-th time, ρ is an adjustment parameter of the proportion of different intelligent water meter adjustment experience values ​​and preset values, ρ is used to indicate the adjustment influence degree of the intelligent water meter, and C(k+1) is the calculation of the k+1-th predicted water consumption; the data summarization processing unit (301) is used to classify and store the calculated data, and the data summarization processing unit (301) is provided with a memory, and the memory is used to store the classified data temporarily; the data transmission unit (302) uploads the data classified and stored by the data summarization processing unit (301) to a database via a wireless network; the classification and summarization method steps of the data summarization processing unit (301) are as follows: Step S1: adding a feature code to the data calculated by the calculation unit according to the time and data type; Step S2: Use the formula f(u, t) = ∑ b (n u , n t ) classify the data, the feature code u is the data type, and the feature code t is the time when the data is generated; Step S3: storing the classified data in a memory provided in the data summarization processing unit (301) before uploading; When in use, the impeller of the smart meter is measured by the laser speed measurement unit (1), and the impeller speed measurement unit (101) measures the impeller rotation speed. The measured impeller rotation speed is used to calculate the water consumption and water consumption rate information; the pulse metering unit (102) measures the number of pulses according to the pulses generated by the rotation of the impeller, and then calculates the water consumption information according to the number of pulses and the impeller rotation speed; the water consumption rate calculation unit (201) in the calculation unit (2) calculates the real-time water consumption rate according to the impeller rotation speed, and the water consumption calculation unit (202) calculates the water consumption within a time according to the number of revolutions of the impeller or the distance traveled within a time; the water consumption calculation unit (202) calculates the total water consumption within a time according to the number of pulses generated and the water consumption required to generate a single pulse, and verifies the accuracy of the measurement result by calculus of the water consumption rate within a time and the calculated water consumption; the prediction calculation unit (203) obtains water consumption and water consumption rate data through the rate prediction water consumption information, and provides intelligent calculation prediction water consumption data service; the measured and calculated data are then classified and uploaded to the database for storage through the data service unit (3), so as to facilitate subsequent query and reference.

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