CN110095514A - A kind of moisture meter system convenient for data acquisition - Google Patents

A kind of moisture meter system convenient for data acquisition Download PDF

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Publication number
CN110095514A
CN110095514A CN201910450772.8A CN201910450772A CN110095514A CN 110095514 A CN110095514 A CN 110095514A CN 201910450772 A CN201910450772 A CN 201910450772A CN 110095514 A CN110095514 A CN 110095514A
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CN
China
Prior art keywords
processor
data acquisition
meter system
moisture meter
moisture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910450772.8A
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Chinese (zh)
Inventor
唐正
余莉
支兴亮
史恭旭
储超超
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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Publication date
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Priority to CN201910450772.8A priority Critical patent/CN110095514A/en
Publication of CN110095514A publication Critical patent/CN110095514A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/228Circuits therefor

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The present invention provides a kind of moisture meter system convenient for data acquisition.It include: processor, capacitance-resistance method moisture content measuring apparatus, serial ports display screen, portable printer, USB interface, SD card, RS485 interface, wireless module, clock module, reset circuit module and conversion circuit.It will test data storage, conversion, display as needed, pass through equipment transmission, copy, printing, greatly simplifie operation difficulty, facilitate operator, flue gas inspection modernization is deeply promoted comprehensively, it is more applicable for complex environment and harsh building site requires, improve the stability of flue gas moisture detection system in harsh environment;Reduce the difficulty of data transmission.

Description

A kind of moisture meter system convenient for data acquisition
Technical field
The invention belongs to flue gas monitoring technical field more particularly to a kind of moisture meter systems convenient for data acquisition.
Background technique
With the progress of science and technology, the living standard of the people has obtained qualitative leap, at the same time, various environmental problems Also following, the detection in the fields such as petrochemical industry, boiler combustion, thermal power plant, steel is particularly important.Moisture is as it In be frequently necessary to the object of detection, accurate water parameters can be obtained easily and fast and affect assessment to flue gas mass.
The referred to relative moisture of usual moisture, is indicated with RH%, refers to contained steam vapour amount and its sky in gas The percentage of saturated steam amount under gas same case.Moisture seems simple magnitude, and influence factor is considerably complicated in fact, moisture Instrument system need to be required in face of complex environment and harsh building site, therefore detection process is there are data acquisition is difficult, and due to The development of computer technology and electronic technology, diversified trend is presented in data acquisition, but facilitate while also becomes insufficient Place, the difference of acquisition mode often will cause the difficult situation of data acquisition, greatly increase the operation difficulty of testing staff.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of moisture meter system convenient for data acquisition.In order to disclosure The some aspects of embodiment have a basic understanding, simple summary is shown below.The summarized section is not generally to comment It states, nor to determine key/critical component or describe the protection scope of these embodiments.Its sole purpose is with simple Form some concepts are presented, in this, as the preamble of following detailed description.
The present invention adopts the following technical scheme:
In some alternative embodiments, a kind of moisture meter system convenient for data acquisition is provided, comprising: processor, resistance Appearance method moisture content measuring apparatus, serial ports display screen, portable printer, USB interface and SD card;The capacitance-resistance method moisture content measuring apparatus It is connect with the data input pin of the processor, the moisture data that itself is measured is uploaded to the processor;It is described portable Printer, serial ports display screen and USB interface, are connected to the processor by serial line interface;The SD card passes through SPI interface It is connected to the processor.
In some alternative embodiments, a kind of moisture meter system convenient for data acquisition, further includes: RS485 Interface, the processor are connect with host computer by RS485 interface and are carried out by Modbus communications protocol and the host computer Communication.
In some alternative embodiments, a kind of moisture meter system convenient for data acquisition, further includes: wireless mould Block;The wireless module is connected to the processor by SPI interface, the processor by the wireless module and it is described on Position machine is communicated.
In some alternative embodiments, described a kind of moisture meter system convenient for data acquisition, further includes: with it is described The clock module and reset circuit module of processor connection.
In some alternative embodiments, a kind of moisture meter system convenient for data acquisition, further includes: being used for will Testing result generates the conversion circuit of corresponding 4~20mA current signal output, and the conversion circuit is connected to the processor.
In some alternative embodiments, the portable printer model SP-T12.
In some alternative embodiments, the wireless module model NRF24L01.
The present invention is brought to be stored, conversion, shows the utility model has the advantages that will test data as needed, transmitted by equipment, Copy, printing, greatly simplifie operation difficulty, facilitate operator, deeply promote flue gas inspection modernization comprehensively, more It is required suitable for complex environment and harsh building site, improves the stability of flue gas moisture detection system in harsh environment;Drop The difficulty of low data transmission.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the moisture meter system convenient for data acquisition of the present invention.
Specific embodiment
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment Only represent possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can be with Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.
As shown in Figure 1, in some illustrative embodiments, for the work difficulty for simplifying operator, reducing data and passing Defeated difficulty improves the stability of flue gas moisture detection system in harsh environment, present invention combination embedded development, channel radio The relevant technologies in terms of letter and electronics, with it is convenient, intuitively for theory, have devised a kind of one kind based on STM32F103XXX Convenient for the moisture meter system of data acquisition.Moisture meter system include: processor, capacitance-resistance method moisture content measuring apparatus, serial ports display screen, Portable printer, USB interface, SD card, RS485 interface, wireless module, clock module, reset circuit module and conversion circuit.
Capacitance-resistance method moisture content measuring apparatus is acquired for data, is connect with the data input pin of processor, by itself measurement Moisture data is uploaded to processor.Capacitance-resistance method moisture content measuring apparatus uses macromolecule membrane capacitance humidity sensing element and platinum resistance Sensor is detected and is compensated to humidity, and so that raising temperature is prevented moisture moisture condensation dissolved corrosion gas by heating, from And protect probe.Moisture is surveyed using capacitance-resistance method, also can be carried out effective measurement to high-temperature gas.Capacitance-resistance method uses 555 timers The multivibrator and dew cell of composition combine, and are then attached to processor, it is big counter can to push away capacitor according to output voltage frequency It is small, to know relative humidity size.It is practical also related with temperature if humidity and capacitor are in a linear relationship, therefore with Pt100 to temperature Degree is detected, compensation circuit, to obtain accurate relative humidity.
This system using high-performance, low-power consumption STM32F103XXX as processor.
Portable printer, serial ports display screen and USB interface are connect by serial line interface with processor.Select serial ports Display screen shows real time temperature, moisture data.USB function is supported, convenient for a large amount of prolonged data acquisitions.Select model The portable printer of SP-T12 realizes data papery, easy to read and record.Using portable printer, USB interface, SD Card, serial ports display screen, realize moisture data in short-term, it is long when, moment acquisition show, convenient for the network analysis to data, more Add and accurately judge moisture content, facilitates the operation of staff.
The memory module of this system is SD card, due to there is no a storage speed requirement, SD card can by SPI mode and MCU into Row communication, SD card are connect by SPI interface with processor.
Processor is connect with host computer by RS485 interface and is communicated by Modbus communications protocol with host computer. It supports 485ModBus agreement, is more suitable for the integration of industry, when bad environments influence to be routed, system is realized using wireless module The order transmission of system and data acquisition.Onboard 485 chip, can directly lead out wiring, and ModBus agreement can be implemented on software.
Wireless module is connect by SPI interface with processor, and processor is communicated by wireless module and host computer.Nothing Wire module model NRF24L01.
Clock module and reset circuit module are connect with processor.
Conversion circuit is used to will test result and generates corresponding 4~20mA current signal output, conversion circuit and processing Device connection.
SP-T12 portable printer, serial ports display screen, USB interface pass through serial ports and are connected with processor, and SD card, nothing Wire module passes through SPI interface and MCU, i.e. processor communication.In addition, also will test result by conversion circuit and generate corresponding 4 ~20mA current signal, for the use of other devices.After this system powers on, processor carries out initial configuration, including clock, logical Port, timer, ADC etc. are interrogated, after the completion of initialization, is acquired by capacitance-resistance method and compensation is calculated by processor, obtained opposite During which the temperature value that moisture RH% and Pt100 are detected constantly carries out data and adopts at this point, serial ports display screen can show current value Collection, processor are communicated with SD card by SPI mode, the data of packing are stored to SD card, operator can pass through 485 or nothing Wire module is realized to MCU, the i.e. control of processor, including data transmission, system setting, blowback realization etc..In addition it is also possible to logical Cross USB copy data.
It should also be appreciated by one skilled in the art that various illustrative logical boxs, mould in conjunction with the embodiments herein description Electronic hardware, computer software or combinations thereof may be implemented into block, circuit and algorithm steps.In order to clearly demonstrate hardware and Interchangeability between software surrounds its function to various illustrative components, frame, module, circuit and step above and carries out It is generally described.Hardware is implemented as this function and is also implemented as software, depends on specific application and to entire The design constraint that system is applied.Those skilled in the art can be directed to each specific application, be realized in a manner of flexible Described function, still, this realization decision should not be construed as a departure from the scope of protection of this disclosure.

Claims (7)

1. it is a kind of convenient for data acquisition moisture meter system characterized by comprising processor, capacitance-resistance method moisture content measuring apparatus, Serial ports display screen, portable printer, USB interface and SD card;The number of the capacitance-resistance method moisture content measuring apparatus and the processor It is connected according to input terminal, the moisture data that itself is measured is uploaded to the processor;The portable printer, serial ports display screen And USB interface, it is connected to the processor by serial line interface;The SD card is connected to the processor by SPI interface.
2. a kind of moisture meter system convenient for data acquisition according to claim 1, which is characterized in that further include: RS485 Interface, the processor are connect with host computer by RS485 interface and are carried out by Modbus communications protocol and the host computer Communication.
3. a kind of moisture meter system convenient for data acquisition according to claim 2, which is characterized in that further include: it is wireless Module;The wireless module is connected to the processor by SPI interface, the processor by the wireless module with it is described Host computer is communicated.
4. a kind of moisture meter system convenient for data acquisition according to claim 3, which is characterized in that further include: with institute State the clock module and reset circuit module of processor connection.
5. a kind of moisture meter system convenient for data acquisition according to claim 3, which is characterized in that further include: it is used for It will test the conversion circuit that result generates corresponding 4~20mA current signal output, the conversion circuit and the processor connect It connects.
6. a kind of moisture meter system convenient for data acquisition according to claim 5, which is characterized in that the Portable hitting Print machine model SP-T12.
7. a kind of moisture meter system convenient for data acquisition according to claim 5, which is characterized in that the wireless module Model NRF24L01.
CN201910450772.8A 2019-05-28 2019-05-28 A kind of moisture meter system convenient for data acquisition Pending CN110095514A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110596314A (en) * 2019-09-09 2019-12-20 深圳冠亚水分仪科技有限公司 Operation method and control system of moisture meter control software
CN111458259A (en) * 2020-05-25 2020-07-28 深圳冠亚水分仪科技有限公司 Moisture detection multi-parameter printing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101079075A (en) * 2007-05-24 2007-11-28 北京交通大学 Portable serial number recorder and implementation method
CN101080631A (en) * 2004-12-17 2007-11-28 德尔塔-T设备有限公司 Moisture content sensor and related methods
CN102243198A (en) * 2011-04-18 2011-11-16 塔里木大学 High-precision digitized cotton moisture intelligent detector
CN106841567A (en) * 2017-01-18 2017-06-13 清华大学 A kind of compact low consumption soil moisture automatic tester of use Wireless Data Transmission
CN210221888U (en) * 2019-05-28 2020-03-31 南京信息工程大学 Moisture meter system convenient to data acquisition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101080631A (en) * 2004-12-17 2007-11-28 德尔塔-T设备有限公司 Moisture content sensor and related methods
CN101079075A (en) * 2007-05-24 2007-11-28 北京交通大学 Portable serial number recorder and implementation method
CN102243198A (en) * 2011-04-18 2011-11-16 塔里木大学 High-precision digitized cotton moisture intelligent detector
CN106841567A (en) * 2017-01-18 2017-06-13 清华大学 A kind of compact low consumption soil moisture automatic tester of use Wireless Data Transmission
CN210221888U (en) * 2019-05-28 2020-03-31 南京信息工程大学 Moisture meter system convenient to data acquisition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110596314A (en) * 2019-09-09 2019-12-20 深圳冠亚水分仪科技有限公司 Operation method and control system of moisture meter control software
CN111458259A (en) * 2020-05-25 2020-07-28 深圳冠亚水分仪科技有限公司 Moisture detection multi-parameter printing method

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