CN116524700A - Wireless remote data acquisition method and system - Google Patents
Wireless remote data acquisition method and system Download PDFInfo
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- CN116524700A CN116524700A CN202310290219.9A CN202310290219A CN116524700A CN 116524700 A CN116524700 A CN 116524700A CN 202310290219 A CN202310290219 A CN 202310290219A CN 116524700 A CN116524700 A CN 116524700A
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- 230000006854 communication Effects 0.000 claims abstract description 35
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- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000000007 visual effect Effects 0.000 claims description 6
- 238000013480 data collection Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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Abstract
The application discloses a wireless remote data acquisition method and system, and belongs to the technical field of power disaster prevention and reduction. The method comprises the following steps: measuring and collecting electric energy information; calculating the electric energy information; transmitting the electric energy information or the calculation result to a second terminal in a wireless mode; and the second terminal visualizes and displays the electric energy information and the calculated result. According to the method, electric energy measurement is realized by collecting electric energy information, electric energy data are calculated, and production scheduling can be performed. The calculated electric energy data is transmitted in real time through wireless remote communication, so that the electric energy data can be quickly and accurately transmitted to an upper computer program, the working efficiency can be improved, and the influence of human errors is reduced. By visualizing and controllably transmitting the power data, data support is provided for statistically likely load losses.
Description
Technical Field
The present application relates to power disaster prevention and reduction technologies, and more particularly, to a wireless remote data acquisition method and system.
Background
The flood disasters have great influence on reliable power supply and submerged distribution equipment, and the transformers and communication lines are extremely easy to damage, so that the production and the life of people are greatly influenced. In order to ensure normal operation of the data acquisition and transmission of the user electric energy when the wired communication is interrupted after the flood disaster occurs, it is necessary to provide the data acquisition method and system in a wireless mode.
Disclosure of Invention
In view of this, in order to solve or improve the above-mentioned adverse phenomena in the prior art, the present application proposes a wireless remote data acquisition method and system.
In order to achieve the above object, the present application provides a wireless remote data acquisition method, including: measuring and collecting electric energy information; calculating the electric energy information; transmitting the electric energy information or the calculation result to a second terminal in a wireless mode; and the second terminal visualizes and displays the electric energy information and the calculated result.
As other possible embodiments, the electrical energy information includes: voltage, current, power factor, active power, reactive power and harmonic components.
As a further embodiment, the harmonic components are calculated using fourier transform methods.
As a further embodiment, the visual display is a dynamic graphic display.
The application provides a wireless remote data acquisition system, comprising: the electric energy metering module is used for measuring and collecting electric energy information and is also used for calculating the electric energy information; the electric energy information comprises voltage, current, power factor, active electric energy, reactive electric energy and harmonic components, wherein the harmonic components are calculated by adopting a Fourier transform method; the wireless communication module is used for transmitting the electric energy information or the calculation result to the second terminal in a wireless mode; a second terminal for visually displaying the power information and the calculated result; the visual display mode is dynamic chart display; and the core control module is used for analyzing the data transmitted by the electric energy metering module, processing the instruction and transmitting the latest data to the wireless communication module.
As other possible embodiments, there are: the voltage stabilizing module is used for respectively supplying power to the electric energy metering module and the wireless communication module; the power supply of the electric energy metering module is 5v, and the power supply of the wireless communication module is 3.3v.
As other possible embodiments, there are: the key module is used for switching the data transmission mode through hardware; wherein the data transmission mode comprises a manual data transmission mode and an automatic data transmission mode.
As a further possible embodiment, the power metering module uses an IM1281B module and a QS121XX series metering chip.
As another implementation form, the wireless communication module adopts a WIFI module with an ATK-ESP8266 serial port.
As another implementation form, the core control module adopts a Modbus-RTU protocol and communicates through a serial port.
Advantageous effects
Compared with the prior art, the application has the advantages that: by collecting the electric energy information, electric energy measurement is realized, electric energy data are calculated, and production scheduling can be performed. The calculated electric energy data is transmitted in real time through wireless remote communication, so that the electric energy data can be quickly and accurately transmitted to an upper computer program, the working efficiency can be improved, and the influence of human errors is reduced. By visualizing and controllably transmitting the power data, data support is provided for statistically likely load losses.
Drawings
FIG. 1 is a schematic diagram of a wireless remote data collection method of the present application;
FIG. 2 is a schematic diagram of a wireless remote data acquisition system of the present application;
fig. 3 is a schematic diagram of a wireless remote data acquisition system workflow of an embodiment of the present application.
The main reference numerals: 1. an electric energy metering module; 2. a core control module; 3. a wireless communication module; 4. and a second terminal.
Description of the embodiments
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In order to solve or improve the problems presented in the background, the embodiment of the present application provides a wireless remote data acquisition method as shown in fig. 1, including steps S110 to S140.
In step S110, electrical energy information is measured and collected.
When flood occurs, the transformer and the communication line are extremely easy to damage, the manual collection and transmission of the electric energy data are limited, the risk is very high, the normal operation of the collection and transmission of the user electric energy data cannot be ensured, and the electric power dispatching of the disaster area by the electric network is inconvenient. The method for automatically measuring and collecting the electric energy information can simply and conveniently ensure the normal operation of the electric energy data collection and transmission of the user, and the electric power network can conveniently carry out power dispatching on the disaster-stricken area. Wherein, the electric energy information includes: voltage, current, power factor, active power, reactive power and harmonic components.
In step S120, the power information is calculated.
The measured and collected electric energy information is transmitted to other terminals after calculation, particularly harmonic components and harmonic components, namely that the voltage and current waveforms in the electric power system are not truly sinusoidal waveforms, namely harmonic contents exist in different degrees, and the harmonic components are mainly generated by various nonlinear electric equipment, transformers and various iron core reactors.
The harms of the harmonic components are: the harmonic current is injected into the power grid, so that the voltage and current waveforms of the power system are severely distorted; causing an electrical energy metering error; resulting in torque that is not proportional to average power and produces additional errors. Wherein the harmonic components are calculated using fourier transform to provide data accuracy.
In step S130, the power information or the result of the calculation is transmitted to the second terminal wirelessly.
At present, most of electric energy data recording needs to adopt a manual ammeter reading mode, so that a great deal of manual labor is consumed, the risk of error reading and recording is also caused, electric energy data cannot be accurately read and transmitted, the wireless transmission mode is accurate in measurement, the cost is low, and the effect of matching with a wireless meter reading system is better.
In step S140, the second terminal displays the power information and the result of the calculation in a visual manner.
The second terminal demonstrates according to the transmission data, through the every turn of display data, the convenient observation phenomenon.
To solve or improve the problems set forth in the background, embodiments of the present application provide a wireless remote data acquisition system as shown in fig. 2, including: the system comprises an electric energy metering module 1, a wireless communication module 3, a second terminal 4 and a core control module 2.
The electric energy metering module 1 is used for measuring and collecting electric energy information, and the electric energy metering module 1 is also used for calculating the electric energy information; the electric energy information comprises voltage, current, power factor, active electric energy, reactive electric energy and harmonic components, wherein the harmonic components are calculated by adopting a Fourier transform method. The method meets the requirements of collecting electric energy data and transmitting the processed data to the singlechip through the serial port, has strong calculation capacity through a built-in algorithm, can finish calculation of harmonic components, and can provide ten-thousandth data precision.
The power metering requirements determine the scheme from three aspects of cost, precision and power consumption, and implementing data transmission also requires converting metered data into a data form that is read by the core chip. The traditional method collects electric energy data through the A/D conversion of the singlechip, and is accompanied by the need of auxiliary measurement such as connection wiring, current and voltage coils and the like, but the complexity is very high, the needed devices are many and complex, the device is difficult to operate, and meanwhile, the calculated amount is too large to calculate when the Fourier transform method is adopted for eliminating the harmonic waves. The power metering module 1 thus employs an IM1281B module for power metering of a remote meter reading system and a QS121XX series metering chip for the metering module core.
And the wireless communication module 3 is used for transmitting the electric energy information or the calculation result to the second terminal 4 in a wireless mode. The wireless communication system transmits accurate data to the upper computer through the wireless communication mode, performs data exchange with the singlechip through the serial port, meets the communication requirement, ensures the transmission safety, is simple and convenient to apply, has relatively low cost, has high transmission speed, and simultaneously ensures high efficiency.
The common wireless meter reading system has the characteristics of quick and simple networking in the aspect of wireless communication, but has the problem of more relay links in the communication process, so that the energy consumption is high, and the cost required by metering equipment is high. The method also has the problems of inaccurate metering, high cost, complex operation and the like because higher maintenance fees are paid in the aspect of resident use. Therefore, the wireless communication module 3 adopts a WIFI module with an ATK-ESP8266 serial port.
A second terminal 4 for visually displaying the power information and the result of the calculation; the visual display mode is dynamic chart display. The second terminal 4 may be an upper computer, a server, or the like; the second terminal 4 comprises a display module, the display module demonstrates the system operation and transmission data, and the phenomenon is convenient to observe through each change of the display data, the system debugging is convenient, and the effective man-machine interaction is carried out; or the transmission data is displayed in real time through the OLED display screen.
And the core control module 2 is used for analyzing the data transmitted by the electric energy metering module 1 and processing instructions, and transmitting the latest data to the wireless communication module 3. The system is used for reducing transmission information, reading out electric energy data and transmitting the electric energy data to a core control module 2 of the communication module: the Modbus-RTU protocol is used for protocol transmission and is communicated through a serial port; the data transmitted by the metering module is analyzed, the instruction is processed, and the latest data is transmitted to the communication module in real time. The CRC16 check code transmitted by Modbus-RTU protocol is decoded, and the CRC16 check code is communicated with the electric energy metering module 1 and the wireless communication module 3.
Further, the power supply requirement of the metering module is 5v, the power supply requirement of the WiFi module is 3.3v, in the previous experiment, when the power supply condition and the power supply requirement have a gap of 1-2 v, the possibility of successful operation exists, but not only the equipment is overheated, but also the system has a plurality of modules which need to be in communication connection, if the power supply is inconsistent, the phenomena of data loss and multiple transmission and missed transmission can occur, the stable operation of the whole system is a great hidden trouble, and if the core control module 2 is adopted for power supply, the power supply requirement of the metering module is not met. The system therefore also comprises a voltage stabilizing module for supplying power to the electric energy metering module 1 and the wireless communication module 3, respectively; the power supply of the electric energy metering module 1 is 5v, and the power supply of the wireless communication module 3 is 3.3v.
Further, the device also comprises a key module, which provides two control modes through hardware control data transmission modes: support a manual transmission data mode and an automatic transmission data mode. The system can display transmission data in real time through the OLED display screen, and data transmission is controlled through the key module.
As shown in fig. 3, based on the above wireless remote data acquisition system, the embodiment of the present application provides a workflow of the wireless remote data acquisition system:
firstly initializing GPIO, IIC communication, serial communication and the like which need to work, and after the initialization is finished, determining whether to start setting a network, receiving sampling values and selecting a receiving mode by key scanning;
when the detection is determined to be started, a data register of an IM1218B metering module is read by using UART communication, and electric energy data acquired by the metering module is transmitted to connected equipment by a Modbus protocol;
after the message frame is successfully sent to the host, the host returns a data frame in the same package form, wherein the data frame contains the same elements as the data transmitted by the slave, and the returned data mainly returns a register value or state; if the host message is not received, the slave does not respond, and whether the data is successfully transmitted can be judged in the mode;
after the data is successfully transmitted, the metering module transmits the acquired data to the core module in the form of CRC16 check code ending; the data read by the host computer is 16-system numbers, the decimal points are not used for separating the numbers, the data are processed into reasonable data through a corresponding algorithm in a core control chip, and the data based on 16 are converted into int;
the IIC communication is used for displaying the electric energy data on the OLED screen and transmitting the electric energy data to an upper computer application program through the Wi-Fi module, and the WiFi module is used as a server side and the upper computer is used as a client side in the system.
Those of ordinary skill in the art will appreciate that the elements of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the elements of the examples have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in this application, it should be understood that the division of units is merely a logic function division, and there may be other manners of division in practical implementation, for example, multiple units may be combined into one unit, one unit may be split into multiple units, or some features may be omitted.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description.
Claims (10)
1. A wireless remote data acquisition method, comprising:
measuring and collecting electric energy information;
calculating the electric energy information;
transmitting the electric energy information or the calculation result to a second terminal in a wireless mode;
and the second terminal visualizes and displays the electric energy information and the calculated result.
2. The wireless remote data collection method of claim 1, wherein the power information comprises: voltage, current, power factor, active power, reactive power and harmonic components.
3. The wireless remote data acquisition method of claim 2, wherein the harmonic component is calculated using fourier transform.
4. The method of claim 1, wherein the visual display is a dynamic graphic display.
5. A wireless remote data acquisition system, comprising:
the electric energy metering module is used for measuring and collecting electric energy information and is also used for calculating the electric energy information; the electric energy information comprises voltage, current, power factor, active electric energy, reactive electric energy and harmonic components, wherein the harmonic components are calculated by adopting a Fourier transform method;
the wireless communication module is used for transmitting the electric energy information or the calculation result to the second terminal in a wireless mode;
a second terminal for visually displaying the power information and the calculated result; the visual display mode is dynamic chart display;
and the core control module is used for analyzing the data transmitted by the electric energy metering module, processing the instruction and transmitting the latest data to the wireless communication module.
6. The wireless remote data acquisition system of claim 5, comprising:
the voltage stabilizing module is used for respectively supplying power to the electric energy metering module and the wireless communication module; the power supply of the electric energy metering module is 5v, and the power supply of the wireless communication module is 3.3v.
7. The wireless remote data acquisition system of claim 5, comprising:
the key module is used for switching the data transmission mode through hardware; wherein the data transmission mode comprises a manual data transmission mode and an automatic data transmission mode.
8. The wireless remote data acquisition system of claim 5 wherein the power metering module employs an IM1281B module and a QS121XX series metering chip.
9. The wireless remote data acquisition system of claim 5, wherein the wireless communication module is a WIFI module with an ATK-ESP8266 serial port.
10. The wireless remote data acquisition system of claim 5, wherein the core control module employs a Modbus-RTU protocol and communicates via a serial port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310290219.9A CN116524700A (en) | 2023-03-23 | 2023-03-23 | Wireless remote data acquisition method and system |
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| CN202310290219.9A CN116524700A (en) | 2023-03-23 | 2023-03-23 | Wireless remote data acquisition method and system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614619A (en) * | 2015-02-11 | 2015-05-13 | 成都祥和云端节能设备集团有限公司 | Remote power data collection system and method based on wireless network |
| CN114189760A (en) * | 2021-11-25 | 2022-03-15 | 国网安徽省电力有限公司蚌埠供电公司 | Electric energy parameter remote acquisition monitoring system, method, terminal and medium |
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- 2023-03-23 CN CN202310290219.9A patent/CN116524700A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614619A (en) * | 2015-02-11 | 2015-05-13 | 成都祥和云端节能设备集团有限公司 | Remote power data collection system and method based on wireless network |
| CN114189760A (en) * | 2021-11-25 | 2022-03-15 | 国网安徽省电力有限公司蚌埠供电公司 | Electric energy parameter remote acquisition monitoring system, method, terminal and medium |
Non-Patent Citations (1)
| Title |
|---|
| 庄秋慧 等: "《测控总线及通信技术》", 31 October 2022, 重庆大学出版社, pages: 66 - 73 * |
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